Improve OSS UI

.dockerignore

@@ -47,6 +47,7 @@ cover/
 # Django
 rsconcept/frontend/static
 rsconcept/frontend/media
+visualizeDB.dot
 *.log
 db.sqlite3
 db.sqlite3-journal

.gitignore

@@ -42,6 +42,7 @@ cover/
 *.log
 db.sqlite3
 db.sqlite3-journal
+visualizeDB.dot
 
 
 # React

.vscode/extensions.json

@@ -0,0 +1,25 @@
+{
+  "recommendations": [
+    "jgclark.vscode-todo-highlight",
+    "bradlc.vscode-tailwindcss",
+    "alexcvzz.vscode-sqlite",
+    "fractalbrew.backticks",
+    "streetsidesoftware.code-spell-checker",
+    "streetsidesoftware.code-spell-checker-russian",
+    "kamikillerto.vscode-colorize",
+    "batisteo.vscode-django",
+    "ms-azuretools.vscode-docker",
+    "dbaeumer.vscode-eslint",
+    "seyyedkhandon.firacode",
+    "ms-python.isort",
+    "ms-vscode.powershell",
+    "esbenp.prettier-vscode",
+    "ms-python.python",
+    "ms-python.debugpy",
+    "ms-python.pylint",
+    "ms-python.autopep8",
+    "ms-python.vscode-pylance",
+    "vscode-icons-team.vscode-icons"
+  ],
+  "unwantedRecommendations": []
+}

.vscode/launch.json

@@ -5,6 +5,7 @@
   "version": "0.2.0",
   "configurations": [
     {
+      // Run Frontend + Backend with current Database
       "name": "Run",
       "type": "PowerShell",
       "request": "launch",
@@ -12,6 +13,7 @@
       "args": []
     },
     {
+      // Run Linters
       "name": "Lint",
       "type": "PowerShell",
       "request": "launch",
@@ -19,6 +21,7 @@
       "args": []
     },
     {
+      // Run Tests
       "name": "Test",
       "type": "PowerShell",
       "request": "launch",
@@ -26,6 +29,7 @@
       "args": []
     },
     {
+      // Run Tests for backend for current file in Debug mode
       "name": "BE-DebugTestFile",
       "type": "debugpy",
       "request": "launch",
@@ -35,6 +39,7 @@
       "django": true
     },
     {
+      // Run Tests for frontned in Debug mode
       "name": "FE-DebugTestAll",
       "type": "node",
       "request": "launch",
@@ -55,6 +60,7 @@
       }
     },
     {
+      // Run Browser in Debug mode (Backend should be running)
       "name": "FE-Debug",
       "type": "chrome",
       "request": "launch",
@@ -62,6 +68,7 @@
       "webRoot": "${workspaceFolder}/rsconcept/frontend"
     },
     {
+      // Run Backend in Debug mode
       "name": "BE-Debug",
       "type": "debugpy",
       "request": "launch",
@@ -70,6 +77,7 @@
       "django": true
     },
     {
+      // Run Backend test coverage
       "name": "BE-Coverage",
       "type": "PowerShell",
       "request": "launch",
@@ -77,11 +85,20 @@
       "args": []
     },
     {
+      // Recreate database, fill with initial data and Run Backend + Frontend
       "name": "Restart",
       "type": "PowerShell",
       "request": "launch",
       "script": "${workspaceFolder}/scripts/dev/RunServer.ps1",
       "args": ["-freshStart"]
+    },
+    {
+      // Create DOT file for visualizing database
+      "name": "BE-GraphDB",
+      "type": "PowerShell",
+      "request": "launch",
+      "script": "${workspaceFolder}/scripts/dev/GraphDB.ps1",
+      "args": []
     }
   ]
 }

README.md

@@ -21,6 +21,8 @@ This readme file is used mostly to document project dependencies
 
 ## ✨ Frontend [Vite + React + Typescript]
 
+- to regenerate parsers use 'npm run generate' script
+
 <details>
   <summary>npm install</summary>
   <pre>
@@ -36,10 +38,12 @@ This readme file is used mostly to document project dependencies
   - react-error-boundary
   - react-pdf
   - react-tooltip
+  - reactflow
   - js-file-download
   - use-debounce
   - framer-motion
   - reagraph
+  - html-to-image
   - @tanstack/react-table
   - @uiw/react-codemirror
   - @uiw/codemirror-themes
@@ -54,6 +58,7 @@ This readme file is used mostly to document project dependencies
   - autoprefixer
   - eslint-plugin-simple-import-sort
   - eslint-plugin-tsdoc
+  - vite
   - jest
   - ts-jest
   - @types/jest
@@ -65,11 +70,13 @@ This readme file is used mostly to document project dependencies
   <pre>
   - ESLint
   - Colorize
+  - Tailwind CSS IntelliSense
   - Code Spell Checker (eng + rus)
   - Backticks
   - Svg Preview
   - TODO Highlight v2
   - Prettier
+  - PowerShell (for Windows dev env)
   </pre>
 </details>
 <details>

rsconcept/backend/apps/oss/admin.py

@@ -7,8 +7,24 @@ from . import models
 class OperationAdmin(admin.ModelAdmin):
     ''' Admin model: Operation. '''
     ordering = ['oss']
-    list_display = ['oss', 'operation_type', 'result', 'alias', 'title', 'comment', 'position_x', 'position_y']
-    search_fields = ['operation_type', 'title', 'alias']
+    list_display = ['id', 'oss', 'operation_type', 'result', 'alias', 'title', 'comment', 'position_x', 'position_y']
+    search_fields = ['id', 'operation_type', 'title', 'alias']
+
+
+class ArgumentAdmin(admin.ModelAdmin):
+    ''' Admin model: Operation arguments. '''
+    ordering = ['operation']
+    list_display = ['id', 'operation', 'argument']
+    search_fields = ['id', 'operation', 'argument']
+
+
+class SynthesisSubstitutionAdmin(admin.ModelAdmin):
+    ''' Admin model:  Substitutions as part of Synthesis operation. '''
+    ordering = ['operation']
+    list_display = ['id', 'operation', 'original', 'substitution', 'transfer_term']
+    search_fields = ['id', 'operation', 'original', 'substitution']
 
 
 admin.site.register(models.Operation, OperationAdmin)
+admin.site.register(models.Argument, ArgumentAdmin)
+admin.site.register(models.SynthesisSubstitution, SynthesisSubstitutionAdmin)

rsconcept/backend/apps/oss/migrations/0002_operationschema_alter_operation_oss.py

@@ -0,0 +1,31 @@
+# Generated by Django 5.0.7 on 2024-07-22 13:23
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('oss', '0001_initial'),
+        ('rsform', '0008_alter_libraryitem_item_type'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='OperationSchema',
+            fields=[
+            ],
+            options={
+                'proxy': True,
+                'indexes': [],
+                'constraints': [],
+            },
+            bases=('rsform.libraryitem',),
+        ),
+        migrations.AlterField(
+            model_name='operation',
+            name='oss',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='items', to='oss.operationschema', verbose_name='Схема синтеза'),
+        ),
+    ]

rsconcept/backend/apps/oss/models/Argument.py

@@ -24,4 +24,4 @@ class Argument(Model):
         unique_together = [['operation', 'argument']]
 
     def __str__(self) -> str:
-        return f'{self.argument.pk} -> {self.operation.pk}'
+        return f'{self.argument} -> {self.operation}'

rsconcept/backend/apps/oss/models/Operation.py

@@ -21,7 +21,7 @@ class Operation(Model):
     ''' Operational schema Unit.'''
     oss: ForeignKey = ForeignKey(
         verbose_name='Схема синтеза',
-        to='rsform.LibraryItem',
+        to='oss.OperationSchema',
         on_delete=CASCADE,
         related_name='items'
     )

rsconcept/backend/apps/oss/models/OperationSchema.py

@@ -3,7 +3,7 @@ from typing import Optional
 
 from django.core.exceptions import ValidationError
 from django.db import transaction
-from django.db.models import QuerySet
+from django.db.models import Manager, QuerySet
 
 from apps.rsform.models import LibraryItem, LibraryItemType
 from shared import messages as msg
@@ -13,30 +13,37 @@ from .Operation import Operation
 from .SynthesisSubstitution import SynthesisSubstitution
 
 
-class OperationSchema:
+class OperationSchema(LibraryItem):
     ''' Operations schema API. '''
 
-    def __init__(self, item: LibraryItem):
-        if item.item_type != LibraryItemType.OPERATION_SCHEMA:
-            raise ValueError(msg.libraryTypeUnexpected())
-        self.item = item
+    class Meta:
+        ''' Model metadata. '''
+        proxy = True
 
-    @staticmethod
-    def create(**kwargs) -> 'OperationSchema':
-        item = LibraryItem.objects.create(item_type=LibraryItemType.OPERATION_SCHEMA, **kwargs)
-        return OperationSchema(item=item)
+    class InternalManager(Manager):
+        ''' Object manager. '''
+
+        def get_queryset(self) -> QuerySet:
+            return super().get_queryset().filter(item_type=LibraryItemType.OPERATION_SCHEMA)
+
+        def create(self, **kwargs):
+            kwargs.update({'item_type': LibraryItemType.OPERATION_SCHEMA})
+            return super().create(**kwargs)
+
+    # Legit overriding object manager
+    objects = InternalManager()  # type: ignore[misc]
 
     def operations(self) -> QuerySet[Operation]:
         ''' Get QuerySet containing all operations of current OSS. '''
-        return Operation.objects.filter(oss=self.item)
+        return Operation.objects.filter(oss=self)
 
     def arguments(self) -> QuerySet[Argument]:
         ''' Operation arguments. '''
-        return Argument.objects.filter(operation__oss=self.item)
+        return Argument.objects.filter(operation__oss=self)
 
     def substitutions(self) -> QuerySet[SynthesisSubstitution]:
         ''' Operation substitutions. '''
-        return SynthesisSubstitution.objects.filter(operation__oss=self.item)
+        return SynthesisSubstitution.objects.filter(operation__oss=self)
 
     def update_positions(self, data: list[dict]):
         ''' Update positions. '''
@@ -53,11 +60,8 @@ class OperationSchema:
         ''' Insert new operation. '''
         if kwargs['alias'] != '' and self.operations().filter(alias=kwargs['alias']).exists():
             raise ValidationError(msg.aliasTaken(kwargs['alias']))
-        result = Operation.objects.create(
-            oss=self.item,
-            **kwargs
-        )
-        self.item.save()
+        result = Operation.objects.create(oss=self, **kwargs)
+        self.save()
         result.refresh_from_db()
         return result
 
@@ -69,7 +73,7 @@ class OperationSchema:
         # deal with attached schema
         # trigger on_change effects
 
-        self.item.save()
+        self.save()
 
     @transaction.atomic
     def set_input(self, target: Operation, schema: Optional[LibraryItem]):
@@ -87,7 +91,7 @@ class OperationSchema:
 
         # trigger on_change effects
 
-        self.item.save()
+        self.save()
 
     @transaction.atomic
     def add_argument(self, operation: Operation, argument: Operation) -> Optional[Argument]:
@@ -95,7 +99,7 @@ class OperationSchema:
         if Argument.objects.filter(operation=operation, argument=argument).exists():
             return None
         result = Argument.objects.create(operation=operation, argument=argument)
-        self.item.save()
+        self.save()
         return result
 
     @transaction.atomic
@@ -109,7 +113,7 @@ class OperationSchema:
 
         # trigger on_change effects
 
-        self.item.save()
+        self.save()
 
     @transaction.atomic
     def set_substitutions(self, target: Operation, substitutes: list[dict]):
@@ -125,4 +129,4 @@ class OperationSchema:
 
         # trigger on_change effects
 
-        self.item.save()
+        self.save()

rsconcept/backend/apps/oss/models/SynthesisSubstitution.py

@@ -33,4 +33,4 @@ class SynthesisSubstitution(Model):
         verbose_name_plural = 'Таблицы отождествлений'
 
     def __str__(self) -> str:
-        return f'{self.original.pk} -> {self.substitution.pk}'
+        return f'{self.original} -> {self.substitution}'

rsconcept/backend/apps/oss/models/__init__.py

@@ -2,7 +2,7 @@
 
 from apps.rsform.models import LibraryItem, LibraryItemType
 
-from .api_OSS import OperationSchema
 from .Argument import Argument
 from .Operation import Operation, OperationType
+from .OperationSchema import OperationSchema
 from .SynthesisSubstitution import SynthesisSubstitution

rsconcept/backend/apps/oss/serializers/__init__.py

@@ -2,7 +2,7 @@
 
 from apps.rsform.serializers import LibraryItemSerializer
 
-from .basics import OperationPositionSerializer, PositionsSerializer
+from .basics import OperationPositionSerializer, PositionsSerializer, SubstitutionExSerializer
 from .data_access import (
     ArgumentSerializer,
     OperationCreateSerializer,

rsconcept/backend/apps/oss/serializers/basics.py

@@ -14,3 +14,15 @@ class PositionsSerializer(serializers.Serializer):
     positions = serializers.ListField(
         child=OperationPositionSerializer()
     )
+
+
+class SubstitutionExSerializer(serializers.Serializer):
+    ''' Serializer: Substitution extended data. '''
+    operation = serializers.IntegerField()
+    original = serializers.IntegerField()
+    substitution = serializers.IntegerField()
+    transfer_term = serializers.BooleanField()
+    original_alias = serializers.CharField()
+    original_term = serializers.CharField()
+    substitution_alias = serializers.CharField()
+    substitution_term = serializers.CharField()

rsconcept/backend/apps/oss/serializers/data_access.py

@@ -10,7 +10,7 @@ from apps.rsform.serializers import LibraryItemDetailsSerializer
 from shared import messages as msg
 
 from ..models import Argument, Operation, OperationSchema, OperationType
-from .basics import OperationPositionSerializer
+from .basics import OperationPositionSerializer, SubstitutionExSerializer
 
 
 class OperationSerializer(serializers.ModelSerializer):
@@ -42,9 +42,10 @@ class OperationCreateSerializer(serializers.Serializer):
             model = Operation
             fields = \
                 'alias', 'operation_type', 'title', \
-                'comment', 'position_x', 'position_y'
+                'comment', 'result', 'position_x', 'position_y'
 
     item_data = OperationData()
+    arguments = PKField(many=True, queryset=Operation.objects.all(), required=False)
     positions = serializers.ListField(
         child=OperationPositionSerializer(),
         default=[]
@@ -75,30 +76,32 @@ class OperationSchemaSerializer(serializers.ModelSerializer):
     items = serializers.ListField(
         child=OperationSerializer()
     )
-    graph = serializers.ListField(
+    arguments = serializers.ListField(
         child=ArgumentSerializer()
     )
+    substitutions = serializers.ListField(
+        child=SubstitutionExSerializer()
+    )
 
     class Meta:
         ''' serializer metadata. '''
-        model = LibraryItem
+        model = OperationSchema
         fields = '__all__'
 
-    def to_representation(self, instance: LibraryItem):
+    def to_representation(self, instance: OperationSchema):
         result = LibraryItemDetailsSerializer(instance).data
-        oss = OperationSchema(instance)
         result['items'] = []
-        for operation in oss.operations():
+        for operation in instance.operations():
             result['items'].append(OperationSerializer(operation).data)
-        result['graph'] = []
-        for argument in oss.arguments():
-            result['graph'].append(ArgumentSerializer(argument).data)
+        result['arguments'] = []
+        for argument in instance.arguments():
+            result['arguments'].append(ArgumentSerializer(argument).data)
         result['substitutions'] = []
-        for substitution in oss.substitutions().values(
+        for substitution in instance.substitutions().values(
             'operation',
             'original',
-            'transfer_term',
             'substitution',
+            'transfer_term',
             original_alias=F('original__alias'),
             original_term=F('original__term_resolved'),
             substitution_alias=F('substitution__alias'),

rsconcept/backend/apps/oss/tests/s_models/__init__.py

@@ -1 +1,4 @@
 ''' Tests for Django Models. '''
+from .t_Argument import *
+from .t_Operation import *
+from .t_SynthesisSubstitution import *

rsconcept/backend/apps/oss/tests/s_models/t_Argument.py

@@ -0,0 +1,36 @@
+''' Testing models: Argument. '''
+from django.test import TestCase
+
+from apps.oss.models import Argument, Operation, OperationSchema, OperationType
+
+
+class TestArgument(TestCase):
+    ''' Testing Argument model. '''
+
+    def setUp(self):
+        self.oss = OperationSchema.objects.create(alias='T1')
+
+        self.operation1 = Operation.objects.create(oss=self.oss, alias='KS1', operation_type=OperationType.INPUT)
+        self.operation2 = Operation.objects.create(oss=self.oss, alias='KS2', operation_type=OperationType.SYNTHESIS)
+        self.operation3 = Operation.objects.create(oss=self.oss, alias='KS3', operation_type=OperationType.INPUT)
+        self.argument = Argument.objects.create(
+            operation=self.operation2,
+            argument=self.operation1
+        )
+
+
+    def test_str(self):
+        testStr = f'{self.operation1} -> {self.operation2}'
+        self.assertEqual(str(self.argument), testStr)
+
+
+    def test_cascade_delete_operation(self):
+        self.assertEqual(Argument.objects.count(), 1)
+        self.operation2.delete()
+        self.assertEqual(Argument.objects.count(), 0)
+
+
+    def test_cascade_delete_argument(self):
+        self.assertEqual(Argument.objects.count(), 1)
+        self.operation1.delete()
+        self.assertEqual(Argument.objects.count(), 0)

rsconcept/backend/apps/oss/tests/s_models/t_Operation.py

@@ -0,0 +1,31 @@
+''' Testing models: Operation. '''
+from django.test import TestCase
+
+from apps.oss.models import Operation, OperationSchema, OperationType
+
+
+class TestOperation(TestCase):
+    ''' Testing Operation model. '''
+
+    def setUp(self):
+        self.oss = OperationSchema.objects.create(alias='T1')
+        self.operation = Operation.objects.create(
+            oss=self.oss,
+            alias='KS1'
+        )
+
+
+    def test_str(self):
+        testStr = 'Операция KS1'
+        self.assertEqual(str(self.operation), testStr)
+
+
+    def test_create_default(self):
+        self.assertEqual(self.operation.oss, self.oss)
+        self.assertEqual(self.operation.operation_type, OperationType.INPUT)
+        self.assertEqual(self.operation.result, None)
+        self.assertEqual(self.operation.alias, 'KS1')
+        self.assertEqual(self.operation.title, '')
+        self.assertEqual(self.operation.comment, '')
+        self.assertEqual(self.operation.position_x, 0)
+        self.assertEqual(self.operation.position_y, 0)

rsconcept/backend/apps/oss/tests/s_models/t_SynthesisSubstitution.py

@@ -0,0 +1,75 @@
+''' Testing models: SynthesisSubstitution. '''
+from unittest import result
+
+from django.test import TestCase
+
+from apps.oss.models import (
+    Argument,
+    Operation,
+    OperationSchema,
+    OperationType,
+    SynthesisSubstitution
+)
+from apps.rsform.models import RSForm
+
+
+class TestSynthesisSubstitution(TestCase):
+    ''' Testing SynthesisSubstitution model. '''
+
+    def setUp(self):
+        self.oss = OperationSchema.objects.create(alias='T1')
+
+        self.ks1 = RSForm.objects.create(alias='KS1', title='Test1')
+        self.ks1x1 = self.ks1.insert_new('X1', term_resolved='X1_1')
+        self.ks2 = RSForm.objects.create(alias='KS2', title='Test2')
+        self.ks2x1 = self.ks2.insert_new('X2', term_resolved='X1_2')
+
+        self.operation1 = Operation.objects.create(
+            oss=self.oss,
+            alias='KS1',
+            operation_type=OperationType.INPUT,
+            result=self.ks1)
+        self.operation2 = Operation.objects.create(
+            oss=self.oss,
+            alias='KS2',
+            operation_type=OperationType.INPUT,
+            result=self.ks1)
+        self.operation3 = Operation.objects.create(oss=self.oss, alias='KS3', operation_type=OperationType.SYNTHESIS)
+        Argument.objects.create(
+            operation=self.operation3,
+            argument=self.operation1
+        )
+        Argument.objects.create(
+            operation=self.operation3,
+            argument=self.operation2
+        )
+
+        self.substitution = SynthesisSubstitution.objects.create(
+            operation=self.operation3,
+            original=self.ks1x1,
+            substitution=self.ks2x1,
+            transfer_term=False
+        )
+
+
+    def test_str(self):
+        testStr = f'{self.ks1x1} -> {self.ks2x1}'
+        self.assertEqual(str(self.substitution), testStr)
+
+
+    def test_cascade_delete_operation(self):
+        self.assertEqual(SynthesisSubstitution.objects.count(), 1)
+        self.operation3.delete()
+        self.assertEqual(SynthesisSubstitution.objects.count(), 0)
+
+
+    def test_cascade_delete_original(self):
+        self.assertEqual(SynthesisSubstitution.objects.count(), 1)
+        self.ks1x1.delete()
+        self.assertEqual(SynthesisSubstitution.objects.count(), 0)
+
+
+    def test_cascade_delete_substitution(self):
+        self.assertEqual(SynthesisSubstitution.objects.count(), 1)
+        self.ks2x1.delete()
+        self.assertEqual(SynthesisSubstitution.objects.count(), 0)

rsconcept/backend/apps/oss/tests/s_views/t_oss.py

@@ -12,29 +12,29 @@ class TestOssViewset(EndpointTester):
 
     def setUp(self):
         super().setUp()
-        self.owned = OperationSchema.create(title='Test', alias='T1', owner=self.user)
-        self.owned_id = self.owned.item.pk
-        self.unowned = OperationSchema.create(title='Test2', alias='T2')
-        self.unowned_id = self.unowned.item.pk
-        self.private = OperationSchema.create(title='Test2', alias='T2', access_policy=AccessPolicy.PRIVATE)
-        self.private_id = self.private.item.pk
-        self.invalid_id = self.private.item.pk + 1337
+        self.owned = OperationSchema.objects.create(title='Test', alias='T1', owner=self.user)
+        self.owned_id = self.owned.pk
+        self.unowned = OperationSchema.objects.create(title='Test2', alias='T2')
+        self.unowned_id = self.unowned.pk
+        self.private = OperationSchema.objects.create(title='Test2', alias='T2', access_policy=AccessPolicy.PRIVATE)
+        self.private_id = self.private.pk
+        self.invalid_id = self.private.pk + 1337
 
 
     def populateData(self):
-        self.ks1 = RSForm.create(alias='KS1', title='Test1')
+        self.ks1 = RSForm.objects.create(alias='KS1', title='Test1')
         self.ks1x1 = self.ks1.insert_new('X1', term_resolved='X1_1')
-        self.ks2 = RSForm.create(alias='KS2', title='Test2')
+        self.ks2 = RSForm.objects.create(alias='KS2', title='Test2')
         self.ks2x1 = self.ks2.insert_new('X2', term_resolved='X1_2')
         self.operation1 = self.owned.create_operation(
             alias='1',
             operation_type=OperationType.INPUT,
-            result=self.ks1.item
+            result=self.ks1
         )
         self.operation2 = self.owned.create_operation(
             alias='2',
             operation_type=OperationType.INPUT,
-            result=self.ks2.item
+            result=self.ks2
         )
         self.operation3 = self.owned.create_operation(
             alias='3',
@@ -53,12 +53,12 @@ class TestOssViewset(EndpointTester):
         self.populateData()
 
         response = self.executeOK(item=self.owned_id)
-        self.assertEqual(response.data['owner'], self.owned.item.owner.pk)
-        self.assertEqual(response.data['title'], self.owned.item.title)
-        self.assertEqual(response.data['alias'], self.owned.item.alias)
-        self.assertEqual(response.data['location'], self.owned.item.location)
-        self.assertEqual(response.data['access_policy'], self.owned.item.access_policy)
-        self.assertEqual(response.data['visible'], self.owned.item.visible)
+        self.assertEqual(response.data['owner'], self.owned.owner.pk)
+        self.assertEqual(response.data['title'], self.owned.title)
+        self.assertEqual(response.data['alias'], self.owned.alias)
+        self.assertEqual(response.data['location'], self.owned.location)
+        self.assertEqual(response.data['access_policy'], self.owned.access_policy)
+        self.assertEqual(response.data['visible'], self.owned.visible)
 
         self.assertEqual(response.data['item_type'], LibraryItemType.OPERATION_SCHEMA)
 
@@ -77,12 +77,12 @@ class TestOssViewset(EndpointTester):
         self.assertEqual(sub['substitution_alias'], self.ks2x1.alias)
         self.assertEqual(sub['substitution_term'], self.ks2x1.term_resolved)
 
-        graph = response.data['graph']
-        self.assertEqual(len(graph), 2)
-        self.assertEqual(graph[0]['operation'], self.operation3.pk)
-        self.assertEqual(graph[0]['argument'], self.operation1.pk)
-        self.assertEqual(graph[1]['operation'], self.operation3.pk)
-        self.assertEqual(graph[1]['argument'], self.operation2.pk)
+        arguments = response.data['arguments']
+        self.assertEqual(len(arguments), 2)
+        self.assertEqual(arguments[0]['operation'], self.operation3.pk)
+        self.assertEqual(arguments[0]['argument'], self.operation1.pk)
+        self.assertEqual(arguments[1]['operation'], self.operation3.pk)
+        self.assertEqual(arguments[1]['argument'], self.operation2.pk)
 
         self.executeOK(item=self.unowned_id)
         self.executeForbidden(item=self.private_id)
@@ -158,6 +158,7 @@ class TestOssViewset(EndpointTester):
         self.assertEqual(new_operation['comment'], data['item_data']['comment'])
         self.assertEqual(new_operation['position_x'], data['item_data']['position_x'])
         self.assertEqual(new_operation['position_y'], data['item_data']['position_y'])
+        self.assertEqual(new_operation['result'], None)
         self.operation1.refresh_from_db()
         self.assertEqual(self.operation1.position_x, data['positions'][0]['position_x'])
         self.assertEqual(self.operation1.position_y, data['positions'][0]['position_y'])
@@ -166,6 +167,42 @@ class TestOssViewset(EndpointTester):
         self.toggle_admin(True)
         self.executeCreated(data=data, item=self.unowned_id)
 
+    @decl_endpoint('/api/oss/{item}/create-operation', method='post')
+    def test_create_operation_arguments(self):
+        self.populateData()
+        data = {
+            'item_data': {
+                'alias': 'Test4',
+                'operation_type': OperationType.SYNTHESIS
+            },
+            'positions': [],
+            'arguments': [self.operation1.pk, self.operation3.pk]
+        }
+        response = self.executeCreated(data=data, item=self.owned_id)
+        self.owned.refresh_from_db()
+        new_operation = response.data['new_operation']
+        arguments = self.owned.arguments()
+        self.assertTrue(arguments.filter(operation__id=new_operation['id'], argument=self.operation1))
+        self.assertTrue(arguments.filter(operation__id=new_operation['id'], argument=self.operation3))
+
+    @decl_endpoint('/api/oss/{item}/create-operation', method='post')
+    def test_create_operation_result(self):
+        self.populateData()
+
+        data = {
+            'item_data': {
+                'alias': 'Test4',
+                'operation_type': OperationType.INPUT,
+                'result': self.ks1.pk
+            },
+            'positions': [],
+        }
+        response = self.executeCreated(data=data, item=self.owned_id)
+        self.owned.refresh_from_db()
+        new_operation = response.data['new_operation']
+        self.assertEqual(new_operation['result'], self.ks1.pk)
+
+
     @decl_endpoint('/api/oss/{item}/delete-operation', method='patch')
     def test_delete_operation(self):
         self.executeNotFound(item=self.invalid_id)

rsconcept/backend/apps/oss/views/oss.py

@@ -20,11 +20,11 @@ from .. import serializers as s
 @extend_schema_view()
 class OssViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.RetrieveAPIView):
     ''' Endpoint: OperationSchema. '''
-    queryset = m.LibraryItem.objects.filter(item_type=m.LibraryItemType.OPERATION_SCHEMA)
+    queryset = m.OperationSchema.objects.all()
     serializer_class = s.LibraryItemSerializer
 
     def _get_schema(self) -> m.OperationSchema:
-        return m.OperationSchema(cast(m.LibraryItem, self.get_object()))
+        return cast(m.OperationSchema, self.get_object())
 
     def get_permissions(self):
         ''' Determine permission class. '''
@@ -52,7 +52,7 @@ class OssViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retriev
     @action(detail=True, methods=['get'], url_path='details')
     def details(self, request: Request, pk):
         ''' Endpoint: Detailed OSS data. '''
-        serializer = s.OperationSchemaSerializer(cast(m.LibraryItem, self.get_object()))
+        serializer = s.OperationSchemaSerializer(self._get_schema())
         return Response(
             status=c.HTTP_200_OK,
             data=serializer.data
@@ -98,13 +98,16 @@ class OssViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retriev
         with transaction.atomic():
             schema.update_positions(serializer.validated_data['positions'])
             new_operation = schema.create_operation(**serializer.validated_data['item_data'])
-            schema.item.refresh_from_db()
+            if new_operation.operation_type != m.OperationType.INPUT and 'arguments' in serializer.validated_data:
+                for argument in serializer.validated_data['arguments']:
+                    schema.add_argument(operation=new_operation, argument=argument)
+            schema.refresh_from_db()
 
         response = Response(
             status=c.HTTP_201_CREATED,
             data={
                 'new_operation': s.OperationSerializer(new_operation).data,
-                'oss': s.OperationSchemaSerializer(schema.item).data
+                'oss': s.OperationSchemaSerializer(schema).data
             }
         )
         return response
@@ -126,16 +129,16 @@ class OssViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retriev
         schema = self._get_schema()
         serializer = s.OperationDeleteSerializer(
             data=request.data,
-            context={'oss': schema.item}
+            context={'oss': schema}
         )
         serializer.is_valid(raise_exception=True)
 
         with transaction.atomic():
             schema.update_positions(serializer.validated_data['positions'])
             schema.delete_operation(serializer.validated_data['target'])
-            schema.item.refresh_from_db()
+            schema.refresh_from_db()
 
         return Response(
             status=c.HTTP_200_OK,
-            data=s.OperationSchemaSerializer(schema.item).data
+            data=s.OperationSchemaSerializer(schema).data
         )

rsconcept/backend/apps/rsform/migrations/0009_rsform_alter_constituenta_schema_and_more.py

@@ -0,0 +1,35 @@
+# Generated by Django 5.0.7 on 2024-07-22 14:21
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('rsform', '0008_alter_libraryitem_item_type'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='RSForm',
+            fields=[
+            ],
+            options={
+                'proxy': True,
+                'indexes': [],
+                'constraints': [],
+            },
+            bases=('rsform.libraryitem',),
+        ),
+        migrations.AlterField(
+            model_name='constituenta',
+            name='schema',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='rsform.rsform', verbose_name='Концептуальная схема'),
+        ),
+        migrations.AlterField(
+            model_name='librarytemplate',
+            name='lib_source',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, to='rsform.rsform', verbose_name='Источник'),
+        ),
+    ]

rsconcept/backend/apps/rsform/models/Constituenta.py

@@ -40,7 +40,7 @@ class Constituenta(Model):
     ''' Constituenta is the base unit for every conceptual schema. '''
     schema: ForeignKey = ForeignKey(
         verbose_name='Концептуальная схема',
-        to='rsform.LibraryItem',
+        to='rsform.RSForm',
         on_delete=CASCADE
     )
     order: PositiveIntegerField = PositiveIntegerField(

rsconcept/backend/apps/rsform/models/LibraryTemplate.py

@@ -6,7 +6,7 @@ class LibraryTemplate(Model):
     ''' Template for library items and constituents. '''
     lib_source: ForeignKey = ForeignKey(
         verbose_name='Источник',
-        to='rsform.LibraryItem',
+        to='rsform.RSForm',
         on_delete=CASCADE,
         null=True
     )

rsconcept/backend/apps/rsform/models/RSForm.py

@@ -5,7 +5,7 @@ from typing import Optional, cast
 from cctext import Entity, Resolver, TermForm, extract_entities, split_grams
 from django.core.exceptions import ValidationError
 from django.db import transaction
-from django.db.models import QuerySet
+from django.db.models import Manager, QuerySet
 
 from shared import messages as msg
 
@@ -28,21 +28,29 @@ from .Version import Version
 _INSERT_LAST: int = -1
 
 
-class RSForm:
+class RSForm(LibraryItem):
     ''' RSForm is math form of conceptual schema. '''
 
-    def __init__(self, item: LibraryItem):
-        if item.item_type != LibraryItemType.RSFORM:
-            raise ValueError(msg.libraryTypeUnexpected())
-        self.item = item
+    class Meta:
+        ''' Model metadata. '''
+        proxy = True
 
-    @staticmethod
-    def create(**kwargs) -> 'RSForm':
-        return RSForm(LibraryItem.objects.create(item_type=LibraryItemType.RSFORM, **kwargs))
+    class InternalManager(Manager):
+        ''' Object manager. '''
+
+        def get_queryset(self) -> QuerySet:
+            return super().get_queryset().filter(item_type=LibraryItemType.RSFORM)
+
+        def create(self, **kwargs):
+            kwargs.update({'item_type': LibraryItemType.RSFORM})
+            return super().create(**kwargs)
+
+    # Legit overriding object manager
+    objects = InternalManager()  # type: ignore[misc]
 
     def constituents(self) -> QuerySet[Constituenta]:
         ''' Get QuerySet containing all constituents of current RSForm. '''
-        return Constituenta.objects.filter(schema=self.item)
+        return Constituenta.objects.filter(schema=self.pk)
 
     def resolver(self) -> Resolver:
         ''' Create resolver for text references based on schema terms. '''
@@ -98,7 +106,7 @@ class RSForm:
         ''' Get maximum alias index for specific CstType. '''
         result: int = 0
         items = Constituenta.objects \
-            .filter(schema=self.item, cst_type=cst_type) \
+            .filter(schema=self, cst_type=cst_type) \
             .order_by('-alias') \
             .values_list('alias', flat=True)
         for alias in items:
@@ -150,13 +158,13 @@ class RSForm:
             cst_type = guess_type(alias)
         self._shift_positions(position, 1)
         result = Constituenta.objects.create(
-            schema=self.item,
+            schema=self,
             order=position,
             alias=alias,
             cst_type=cst_type,
             **kwargs
         )
-        self.item.save()
+        self.save()
         result.refresh_from_db()
         return result
 
@@ -183,13 +191,13 @@ class RSForm:
         result = deepcopy(items)
         for cst in result:
             cst.pk = None
-            cst.schema = self.item
+            cst.schema = self
             cst.order = position
             cst.alias = mapping[cst.alias]
             cst.apply_mapping(mapping)
             cst.save()
             position = position + 1
-        self.item.save()
+        self.save()
         return result
 
     @transaction.atomic
@@ -213,7 +221,7 @@ class RSForm:
                 count_moved += 1
             update_list.append(cst)
         Constituenta.objects.bulk_update(update_list, ['order'])
-        self.item.save()
+        self.save()
 
     @transaction.atomic
     def delete_cst(self, listCst):
@@ -222,7 +230,7 @@ class RSForm:
             cst.delete()
         self._reset_order()
         self.resolve_all_text()
-        self.item.save()
+        self.save()
 
     @transaction.atomic
     def substitute(
@@ -296,7 +304,7 @@ class RSForm:
     def create_version(self, version: str, description: str, data) -> Version:
         ''' Creates version for current state. '''
         return Version.objects.create(
-            item=self.item,
+            item=self,
             version=version,
             description=description,
             data=data
@@ -322,7 +330,7 @@ class RSForm:
         prefix = get_type_prefix(cst_type)
         for text in expressions:
             new_item = Constituenta.objects.create(
-                schema=self.item,
+                schema=self,
                 order=position,
                 alias=f'{prefix}{free_index}',
                 definition_formal=text,
@@ -332,7 +340,7 @@ class RSForm:
             free_index = free_index + 1
             position = position + 1
 
-        self.item.save()
+        self.save()
         return result
 
     def _shift_positions(self, start: int, shift: int):
@@ -341,7 +349,7 @@ class RSForm:
         update_list = \
             Constituenta.objects \
             .only('id', 'order', 'schema') \
-            .filter(schema=self.item, order__gte=start)
+            .filter(schema=self.pk, order__gte=start)
         for cst in update_list:
             cst.order += shift
         Constituenta.objects.bulk_update(update_list, ['order'])

rsconcept/backend/apps/rsform/models/__init__.py

@@ -1,6 +1,6 @@
 ''' Django: Models. '''
 
-from .api_RSForm import RSForm
+from .RSForm import RSForm
 from .Constituenta import Constituenta, CstType, _empty_forms
 from .Editor import Editor
 from .LibraryItem import (

rsconcept/backend/apps/rsform/serializers/data_access.py

@@ -109,22 +109,21 @@ class CstSerializer(serializers.ModelSerializer):
 
     def update(self, instance: Constituenta, validated_data) -> Constituenta:
         data = validated_data  # Note: use alias for better code readability
-        schema = RSForm(instance.schema)
         definition: Optional[str] = data['definition_raw'] if 'definition_raw' in data else None
         term: Optional[str] = data['term_raw'] if 'term_raw' in data else None
         term_changed = 'term_forms' in data
         if definition is not None and definition != instance.definition_raw:
-            data['definition_resolved'] = schema.resolver().resolve(definition)
+            data['definition_resolved'] = instance.schema.resolver().resolve(definition)
         if term is not None and term != instance.term_raw:
-            data['term_resolved'] = schema.resolver().resolve(term)
+            data['term_resolved'] = instance.schema.resolver().resolve(term)
             if data['term_resolved'] != instance.term_resolved and 'term_forms' not in data:
                 data['term_forms'] = []
             term_changed = data['term_resolved'] != instance.term_resolved
         result: Constituenta = super().update(instance, data)
         if term_changed:
-            schema.on_term_change([result.id])
+            instance.schema.on_term_change([result.id])
             result.refresh_from_db()
-        schema.item.save()
+        instance.schema.save()
         return result
 
 
@@ -170,17 +169,16 @@ class RSFormSerializer(serializers.ModelSerializer):
         model = LibraryItem
         fields = '__all__'
 
-    def to_representation(self, instance: LibraryItem) -> dict:
+    def to_representation(self, instance: RSForm) -> dict:
         result = LibraryItemDetailsSerializer(instance).data
-        schema = RSForm(instance)
         result['items'] = []
-        for cst in schema.constituents().order_by('order'):
+        for cst in instance.constituents().order_by('order'):
             result['items'].append(CstSerializer(cst).data)
         return result
 
     def to_versioned_data(self) -> dict:
         ''' Create serializable version representation without redundant data. '''
-        result = self.to_representation(cast(LibraryItem, self.instance))
+        result = self.to_representation(cast(RSForm, self.instance))
         del result['versions']
         del result['subscribers']
         del result['editors']
@@ -197,14 +195,14 @@ class RSFormSerializer(serializers.ModelSerializer):
 
     def from_versioned_data(self, version: int, data: dict) -> dict:
         ''' Load data from version. '''
-        result = self.to_representation(cast(LibraryItem, self.instance))
+        result = self.to_representation(cast(RSForm, self.instance))
         result['version'] = version
         return result | data
 
     @transaction.atomic
     def restore_from_version(self, data: dict):
         ''' Load data from version. '''
-        schema = RSForm(cast(LibraryItem, self.instance))
+        schema = cast(RSForm, self.instance)
         items: list[dict] = data['items']
         ids: list[int] = [item['id'] for item in items]
         processed: list[int] = []
@@ -258,13 +256,13 @@ class RSFormParseSerializer(serializers.ModelSerializer):
         model = LibraryItem
         fields = '__all__'
 
-    def to_representation(self, instance: LibraryItem):
+    def to_representation(self, instance: RSForm):
         result = RSFormSerializer(instance).data
         return self._parse_data(result)
 
     def from_versioned_data(self, version: int, data: dict) -> dict:
         ''' Load data from version and parse. '''
-        item = cast(LibraryItem, self.instance)
+        item = cast(RSForm, self.instance)
         result = RSFormSerializer(item).from_versioned_data(version, data)
         return self._parse_data(result)
 
@@ -283,7 +281,7 @@ class CstTargetSerializer(serializers.Serializer):
     target = PKField(many=False, queryset=Constituenta.objects.all())
 
     def validate(self, attrs):
-        schema = cast(LibraryItem, self.context['schema'])
+        schema = cast(RSForm, self.context['schema'])
         cst = cast(Constituenta, attrs['target'])
         if schema and cst.schema != schema:
             raise serializers.ValidationError({
@@ -315,7 +313,7 @@ class CstRenameSerializer(serializers.Serializer):
 
     def validate(self, attrs):
         attrs = super().validate(attrs)
-        schema = cast(LibraryItem, self.context['schema'])
+        schema = cast(RSForm, self.context['schema'])
         cst = cast(Constituenta, attrs['target'])
         if cst.schema != schema:
             raise serializers.ValidationError({
@@ -326,7 +324,7 @@ class CstRenameSerializer(serializers.Serializer):
             raise serializers.ValidationError({
                 'alias': msg.renameTrivial(new_alias)
             })
-        if RSForm(schema).constituents().filter(alias=new_alias).exists():
+        if schema.constituents().filter(alias=new_alias).exists():
             raise serializers.ValidationError({
                 'alias': msg.aliasTaken(new_alias)
             })
@@ -338,7 +336,7 @@ class CstListSerializer(serializers.Serializer):
     items = PKField(many=True, queryset=Constituenta.objects.all())
 
     def validate(self, attrs):
-        schema = cast(LibraryItem, self.context['schema'])
+        schema = cast(RSForm, self.context['schema'])
         if not schema:
             return attrs
 
@@ -370,7 +368,7 @@ class CstSubstituteSerializer(serializers.Serializer):
     )
 
     def validate(self, attrs):
-        schema = cast(LibraryItem, self.context['schema'])
+        schema = cast(RSForm, self.context['schema'])
         deleted = set()
         for item in attrs['substitutions']:
             original_cst = cast(Constituenta, item['original'])
@@ -397,8 +395,8 @@ class CstSubstituteSerializer(serializers.Serializer):
 
 class InlineSynthesisSerializer(serializers.Serializer):
     ''' Serializer: Inline synthesis operation input. '''
-    receiver = PKField(many=False, queryset=LibraryItem.objects.all())
-    source = PKField(many=False, queryset=LibraryItem.objects.all())  # type: ignore
+    receiver = PKField(many=False, queryset=RSForm.objects.all())
+    source = PKField(many=False, queryset=RSForm.objects.all())  # type: ignore
     items = PKField(many=True, queryset=Constituenta.objects.all())
     substitutions = serializers.ListField(
         child=CstSubstituteSerializerBase()
@@ -406,8 +404,8 @@ class InlineSynthesisSerializer(serializers.Serializer):
 
     def validate(self, attrs):
         user = cast(User, self.context['user'])
-        schema_in = cast(LibraryItem, attrs['source'])
-        schema_out = cast(LibraryItem, attrs['receiver'])
+        schema_in = cast(RSForm, attrs['source'])
+        schema_out = cast(RSForm, attrs['receiver'])
         if user.is_anonymous or (schema_out.owner != user and not user.is_staff):
             raise PermissionDenied({
                 'message': msg.schemaNotOwned(),

rsconcept/backend/apps/rsform/serializers/io_files.py

@@ -4,7 +4,7 @@ from rest_framework import serializers
 
 from shared import messages as msg
 
-from ..models import Constituenta, LibraryItem, RSForm
+from ..models import Constituenta, RSForm
 from ..utils import fix_old_references
 
 _CST_TYPE = 'constituenta'
@@ -39,9 +39,9 @@ class RSFormTRSSerializer(serializers.Serializer):
     def _prepare_json_rsform(schema: RSForm) -> dict:
         return {
             'type': _TRS_TYPE,
-            'title': schema.item.title,
-            'alias': schema.item.alias,
-            'comment': schema.item.comment,
+            'title': schema.title,
+            'alias': schema.alias,
+            'comment': schema.comment,
             'items': [],
             'claimed': False,
             'selection': [],
@@ -125,7 +125,7 @@ class RSFormTRSSerializer(serializers.Serializer):
             result['comment'] = data.get('comment', '')
         if 'id' in data:
             result['id'] = data['id']
-            self.instance = RSForm(LibraryItem.objects.get(pk=result['id']))
+            self.instance = RSForm.objects.get(pk=result['id'])
         return result
 
     def validate(self, attrs: dict):
@@ -139,7 +139,7 @@ class RSFormTRSSerializer(serializers.Serializer):
 
     @transaction.atomic
     def create(self, validated_data: dict) -> RSForm:
-        self.instance: RSForm = RSForm.create(
+        self.instance: RSForm = RSForm.objects.create(
             owner=validated_data.get('owner', None),
             alias=validated_data['alias'],
             title=validated_data['title'],
@@ -149,12 +149,12 @@ class RSFormTRSSerializer(serializers.Serializer):
             access_policy=validated_data['access_policy'],
             location=validated_data['location']
         )
-        self.instance.item.save()
+        self.instance.save()
         order = 1
         for cst_data in validated_data['items']:
             cst = Constituenta(
                 alias=cst_data['alias'],
-                schema=self.instance.item,
+                schema=self.instance,
                 order=order,
                 cst_type=cst_data['cstType'],
             )
@@ -167,11 +167,11 @@ class RSFormTRSSerializer(serializers.Serializer):
     @transaction.atomic
     def update(self, instance: RSForm, validated_data) -> RSForm:
         if 'alias' in validated_data:
-            instance.item.alias = validated_data['alias']
+            instance.alias = validated_data['alias']
         if 'title' in validated_data:
-            instance.item.title = validated_data['title']
+            instance.title = validated_data['title']
         if 'comment' in validated_data:
-            instance.item.comment = validated_data['comment']
+            instance.comment = validated_data['comment']
 
         order = 1
         prev_constituents = instance.constituents()
@@ -188,7 +188,7 @@ class RSFormTRSSerializer(serializers.Serializer):
             else:
                 cst = Constituenta(
                     alias=cst_data['alias'],
-                    schema=instance.item,
+                    schema=instance,
                     order=order,
                     cst_type=cst_data['cstType'],
                 )
@@ -202,7 +202,7 @@ class RSFormTRSSerializer(serializers.Serializer):
                 prev_cst.delete()
 
         instance.resolve_all_text()
-        instance.item.save()
+        instance.save()
         return instance
 
     @staticmethod

rsconcept/backend/apps/rsform/tests/s_models/t_Constituenta.py

@@ -3,15 +3,15 @@ from django.db.utils import IntegrityError
 from django.forms import ValidationError
 from django.test import TestCase
 
-from apps.rsform.models import Constituenta, CstType, LibraryItem, LibraryItemType
+from apps.rsform.models import Constituenta, CstType, LibraryItemType, RSForm
 
 
 class TestConstituenta(TestCase):
     ''' Testing Constituenta model. '''
 
     def setUp(self):
-        self.schema1 = LibraryItem.objects.create(item_type=LibraryItemType.RSFORM, title='Test1')
-        self.schema2 = LibraryItem.objects.create(item_type=LibraryItemType.RSFORM, title='Test2')
+        self.schema1 = RSForm.objects.create(title='Test1')
+        self.schema2 = RSForm.objects.create(title='Test2')
 
 
     def test_str(self):

rsconcept/backend/apps/rsform/tests/s_models/t_Editor.py

@@ -1,7 +1,7 @@
 ''' Testing models: Editor. '''
 from django.test import TestCase
 
-from apps.rsform.models import Editor, LibraryItem, LibraryItemType, User
+from apps.rsform.models import Editor, LibraryItemType, RSForm, User
 
 
 class TestEditor(TestCase):
@@ -10,8 +10,7 @@ class TestEditor(TestCase):
     def setUp(self):
         self.user1 = User.objects.create(username='User1')
         self.user2 = User.objects.create(username='User2')
-        self.item = LibraryItem.objects.create(
-            item_type=LibraryItemType.RSFORM,
+        self.item = RSForm.objects.create(
             title='Test',
             alias='КС1',
             owner=self.user1

rsconcept/backend/apps/rsform/tests/s_models/t_RSForm.py

@@ -11,49 +11,49 @@ class TestRSForm(TestCase):
     def setUp(self):
         self.user1 = User.objects.create(username='User1')
         self.user2 = User.objects.create(username='User2')
-        self.schema = RSForm.create(title='Test')
+        self.schema = RSForm.objects.create(title='Test')
         self.assertNotEqual(self.user1, self.user2)
 
 
     def test_constituents(self):
-        schema1 = RSForm.create(title='Test1')
-        schema2 = RSForm.create(title='Test2')
+        schema1 = RSForm.objects.create(title='Test1')
+        schema2 = RSForm.objects.create(title='Test2')
         self.assertFalse(schema1.constituents().exists())
         self.assertFalse(schema2.constituents().exists())
 
-        Constituenta.objects.create(alias='X1', schema=schema1.item, order=1)
-        Constituenta.objects.create(alias='X2', schema=schema1.item, order=2)
+        Constituenta.objects.create(alias='X1', schema=schema1, order=1)
+        Constituenta.objects.create(alias='X2', schema=schema1, order=2)
         self.assertTrue(schema1.constituents().exists())
         self.assertFalse(schema2.constituents().exists())
         self.assertEqual(schema1.constituents().count(), 2)
 
 
     def test_get_max_index(self):
-        schema1 = RSForm.create(title='Test1')
-        Constituenta.objects.create(alias='X1', schema=schema1.item, order=1)
-        Constituenta.objects.create(alias='D2', cst_type=CstType.TERM, schema=schema1.item, order=2)
+        schema1 = RSForm.objects.create(title='Test1')
+        Constituenta.objects.create(alias='X1', schema=schema1, order=1)
+        Constituenta.objects.create(alias='D2', cst_type=CstType.TERM, schema=schema1, order=2)
         self.assertEqual(schema1.get_max_index(CstType.BASE), 1)
         self.assertEqual(schema1.get_max_index(CstType.TERM), 2)
         self.assertEqual(schema1.get_max_index(CstType.AXIOM), 0)
 
 
     def test_insert_at(self):
-        schema = RSForm.create(title='Test')
+        schema = RSForm.objects.create(title='Test')
         x1 = schema.insert_new('X1')
         self.assertEqual(x1.order, 1)
-        self.assertEqual(x1.schema, schema.item)
+        self.assertEqual(x1.schema, schema)
 
         x2 = schema.insert_new('X2', position=1)
         x1.refresh_from_db()
         self.assertEqual(x2.order, 1)
-        self.assertEqual(x2.schema, schema.item)
+        self.assertEqual(x2.schema, schema)
         self.assertEqual(x1.order, 2)
 
         x3 = schema.insert_new('X3', position=4)
         x2.refresh_from_db()
         x1.refresh_from_db()
         self.assertEqual(x3.order, 3)
-        self.assertEqual(x3.schema, schema.item)
+        self.assertEqual(x3.schema, schema)
         self.assertEqual(x2.order, 1)
         self.assertEqual(x1.order, 2)
 
@@ -62,7 +62,7 @@ class TestRSForm(TestCase):
         x2.refresh_from_db()
         x1.refresh_from_db()
         self.assertEqual(x4.order, 3)
-        self.assertEqual(x4.schema, schema.item)
+        self.assertEqual(x4.schema, schema)
         self.assertEqual(x3.order, 4)
         self.assertEqual(x2.order, 1)
         self.assertEqual(x1.order, 2)
@@ -94,11 +94,11 @@ class TestRSForm(TestCase):
     def test_insert_last(self):
         x1 = self.schema.insert_new('X1')
         self.assertEqual(x1.order, 1)
-        self.assertEqual(x1.schema, self.schema.item)
+        self.assertEqual(x1.schema, self.schema)
 
         x2 = self.schema.insert_new('X2')
         self.assertEqual(x2.order, 2)
-        self.assertEqual(x2.schema, self.schema.item)
+        self.assertEqual(x2.schema, self.schema)
         self.assertEqual(x1.order, 1)
 
     def test_create_cst(self):

rsconcept/backend/apps/rsform/tests/s_views/t_constituents.py

@@ -8,12 +8,12 @@ class TestConstituentaAPI(EndpointTester):
 
     def setUp(self):
         super().setUp()
-        self.rsform_owned = RSForm.create(title='Test', alias='T1', owner=self.user)
-        self.rsform_unowned = RSForm.create(title='Test2', alias='T2')
+        self.rsform_owned = RSForm.objects.create(title='Test', alias='T1', owner=self.user)
+        self.rsform_unowned = RSForm.objects.create(title='Test2', alias='T2')
         self.cst1 = Constituenta.objects.create(
             alias='X1',
             cst_type=CstType.BASE,
-            schema=self.rsform_owned.item,
+            schema=self.rsform_owned,
             order=1,
             convention='Test',
             term_raw='Test1',
@@ -22,7 +22,7 @@ class TestConstituentaAPI(EndpointTester):
         self.cst2 = Constituenta.objects.create(
             alias='X2',
             cst_type=CstType.BASE,
-            schema=self.rsform_unowned.item,
+            schema=self.rsform_unowned,
             order=1,
             convention='Test1',
             term_raw='Test2',
@@ -30,7 +30,7 @@ class TestConstituentaAPI(EndpointTester):
         )
         self.cst3 = Constituenta.objects.create(
             alias='X3',
-            schema=self.rsform_owned.item,
+            schema=self.rsform_owned,
             order=2,
             term_raw='Test3',
             term_resolved='Test3',

rsconcept/backend/apps/rsform/tests/s_views/t_library.py

@@ -20,20 +20,16 @@ class TestLibraryViewset(EndpointTester):
 
     def setUp(self):
         super().setUp()
-        self.owned = LibraryItem.objects.create(
-            item_type=LibraryItemType.RSFORM,
+        self.owned = RSForm.objects.create(
             title='Test',
             alias='T1',
             owner=self.user
         )
-        self.schema = RSForm(self.owned)
-        self.unowned = LibraryItem.objects.create(
-            item_type=LibraryItemType.RSFORM,
+        self.unowned = RSForm.objects.create(
             title='Test2',
             alias='T2'
         )
-        self.common = LibraryItem.objects.create(
-            item_type=LibraryItemType.RSFORM,
+        self.common = RSForm.objects.create(
             title='Test3',
             alias='T3',
             location=LocationHead.COMMON
@@ -363,12 +359,12 @@ class TestLibraryViewset(EndpointTester):
 
     @decl_endpoint('/api/library/{item}/clone', method='post')
     def test_clone_rsform(self):
-        x12 = self.schema.insert_new(
+        x12 = self.owned.insert_new(
             alias='X12',
             term_raw='человек',
             term_resolved='человек'
         )
-        d2 = self.schema.insert_new(
+        d2 = self.owned.insert_new(
             alias='D2',
             term_raw='@{X12|plur}',
             term_resolved='люди'

rsconcept/backend/apps/rsform/tests/s_views/t_operations.py

@@ -10,16 +10,16 @@ class TestInlineSynthesis(EndpointTester):
     @decl_endpoint('/api/operations/inline-synthesis', method='patch')
     def setUp(self):
         super().setUp()
-        self.schema1 = RSForm.create(title='Test1', alias='T1', owner=self.user)
-        self.schema2 = RSForm.create(title='Test2', alias='T2', owner=self.user)
-        self.unowned = RSForm.create(title='Test3', alias='T3')
+        self.schema1 = RSForm.objects.create(title='Test1', alias='T1', owner=self.user)
+        self.schema2 = RSForm.objects.create(title='Test2', alias='T2', owner=self.user)
+        self.unowned = RSForm.objects.create(title='Test3', alias='T3')
 
 
     def test_inline_synthesis_inputs(self):
         invalid_id = 1338
         data = {
-            'receiver': self.unowned.item.pk,
-            'source': self.schema1.item.pk,
+            'receiver': self.unowned.pk,
+            'source': self.schema1.pk,
             'items': [],
             'substitutions': []
         }
@@ -28,11 +28,11 @@ class TestInlineSynthesis(EndpointTester):
         data['receiver'] = invalid_id
         self.executeBadData(data=data)
 
-        data['receiver'] = self.schema1.item.pk
+        data['receiver'] = self.schema1.pk
         data['source'] = invalid_id
         self.executeBadData(data=data)
 
-        data['source'] = self.schema1.item.pk
+        data['source'] = self.schema1.pk
         self.executeOK(data=data)
 
         data['items'] = [invalid_id]
@@ -51,8 +51,8 @@ class TestInlineSynthesis(EndpointTester):
         ks2_a1 = self.schema2.insert_new('A1', definition_formal='1=1')  # -> not included in items
 
         data = {
-            'receiver': self.schema1.item.pk,
-            'source': self.schema2.item.pk,
+            'receiver': self.schema1.pk,
+            'source': self.schema2.pk,
             'items': [ks2_x1.pk, ks2_x2.pk, ks2_s1.pk, ks2_d1.pk],
             'substitutions': [
                 {

rsconcept/backend/apps/rsform/tests/s_views/t_rsforms.py

@@ -24,12 +24,12 @@ class TestRSFormViewset(EndpointTester):
 
     def setUp(self):
         super().setUp()
-        self.owned = RSForm.create(title='Test', alias='T1', owner=self.user)
-        self.owned_id = self.owned.item.pk
-        self.unowned = RSForm.create(title='Test2', alias='T2')
-        self.unowned_id = self.unowned.item.pk
-        self.private = RSForm.create(title='Test2', alias='T2', access_policy=AccessPolicy.PRIVATE)
-        self.private_id = self.private.item.pk
+        self.owned = RSForm.objects.create(title='Test', alias='T1', owner=self.user)
+        self.owned_id = self.owned.pk
+        self.unowned = RSForm.objects.create(title='Test2', alias='T2')
+        self.unowned_id = self.unowned.pk
+        self.private = RSForm.objects.create(title='Test2', alias='T2', access_policy=AccessPolicy.PRIVATE)
+        self.private_id = self.private.pk
 
 
     @decl_endpoint('/api/rsforms/create-detailed', method='post')
@@ -63,19 +63,19 @@ class TestRSFormViewset(EndpointTester):
         )
         response = self.executeOK()
         self.assertFalse(response_contains(response, non_schema))
-        self.assertTrue(response_contains(response, self.unowned.item))
-        self.assertTrue(response_contains(response, self.owned.item))
+        self.assertTrue(response_contains(response, self.unowned))
+        self.assertTrue(response_contains(response, self.owned))
 
 
     @decl_endpoint('/api/rsforms/{item}/contents', method='get')
     def test_contents(self):
         response = self.executeOK(item=self.owned_id)
-        self.assertEqual(response.data['owner'], self.owned.item.owner.pk)
-        self.assertEqual(response.data['title'], self.owned.item.title)
-        self.assertEqual(response.data['alias'], self.owned.item.alias)
-        self.assertEqual(response.data['location'], self.owned.item.location)
-        self.assertEqual(response.data['access_policy'], self.owned.item.access_policy)
-        self.assertEqual(response.data['visible'], self.owned.item.visible)
+        self.assertEqual(response.data['owner'], self.owned.owner.pk)
+        self.assertEqual(response.data['title'], self.owned.title)
+        self.assertEqual(response.data['alias'], self.owned.alias)
+        self.assertEqual(response.data['location'], self.owned.location)
+        self.assertEqual(response.data['access_policy'], self.owned.access_policy)
+        self.assertEqual(response.data['visible'], self.owned.visible)
 
 
     @decl_endpoint('/api/rsforms/{item}/details', method='get')
@@ -92,12 +92,12 @@ class TestRSFormViewset(EndpointTester):
         )
 
         response = self.executeOK(item=self.owned_id)
-        self.assertEqual(response.data['owner'], self.owned.item.owner.pk)
-        self.assertEqual(response.data['title'], self.owned.item.title)
-        self.assertEqual(response.data['alias'], self.owned.item.alias)
-        self.assertEqual(response.data['location'], self.owned.item.location)
-        self.assertEqual(response.data['access_policy'], self.owned.item.access_policy)
-        self.assertEqual(response.data['visible'], self.owned.item.visible)
+        self.assertEqual(response.data['owner'], self.owned.owner.pk)
+        self.assertEqual(response.data['title'], self.owned.title)
+        self.assertEqual(response.data['alias'], self.owned.alias)
+        self.assertEqual(response.data['location'], self.owned.location)
+        self.assertEqual(response.data['access_policy'], self.owned.access_policy)
+        self.assertEqual(response.data['visible'], self.owned.visible)
 
         self.assertEqual(len(response.data['items']), 2)
         self.assertEqual(response.data['items'][0]['id'], x1.pk)
@@ -176,9 +176,9 @@ class TestRSFormViewset(EndpointTester):
 
     @decl_endpoint('/api/rsforms/{item}/export-trs', method='get')
     def test_export_trs(self):
-        schema = RSForm.create(title='Test')
+        schema = RSForm.objects.create(title='Test')
         schema.insert_new('X1')
-        response = self.executeOK(item=schema.item.pk)
+        response = self.executeOK(item=schema.pk)
         self.assertEqual(response.headers['Content-Disposition'], 'attachment; filename=Schema.trs')
         with io.BytesIO(response.content) as stream:
             with ZipFile(stream, 'r') as zipped_file:
@@ -219,6 +219,15 @@ class TestRSFormViewset(EndpointTester):
         self.assertEqual(x4.term_raw, data['term_raw'])
         self.assertEqual(x4.term_forms, data['term_forms'])
 
+        data = {
+            'alias': 'X5',
+            'cst_type': CstType.BASE,
+            'insert_after': None,
+            'term_raw': 'test5'
+        }
+        response = self.executeCreated(data=data, item=self.owned_id)
+        self.assertEqual(response.data['new_cst']['alias'], data['alias'])
+
 
     @decl_endpoint('/api/rsforms/{item}/cst-rename', method='patch')
     def test_rename_constituenta(self):
@@ -387,7 +396,7 @@ class TestRSFormViewset(EndpointTester):
         data = {'items': [x1.pk]}
         response = self.executeOK(data=data)
         x2.refresh_from_db()
-        self.owned.item.refresh_from_db()
+        self.owned.refresh_from_db()
         self.assertEqual(len(response.data['items']), 1)
         self.assertEqual(self.owned.constituents().count(), 1)
         self.assertEqual(x2.alias, 'X2')
@@ -449,16 +458,16 @@ class TestRSFormViewset(EndpointTester):
     @decl_endpoint('/api/rsforms/{item}/load-trs', method='patch')
     def test_load_trs(self):
         self.set_params(item=self.owned_id)
-        self.owned.item.title = 'Test11'
-        self.owned.item.save()
+        self.owned.title = 'Test11'
+        self.owned.save()
         x1 = self.owned.insert_new('X1')
         work_dir = os.path.dirname(os.path.abspath(__file__))
         with open(f'{work_dir}/data/sample-rsform.trs', 'rb') as file:
             data = {'file': file, 'load_metadata': False}
             response = self.client.patch(self.endpoint, data=data, format='multipart')
-        self.owned.item.refresh_from_db()
+        self.owned.refresh_from_db()
         self.assertEqual(response.status_code, status.HTTP_200_OK)
-        self.assertEqual(self.owned.item.title, 'Test11')
+        self.assertEqual(self.owned.title, 'Test11')
         self.assertEqual(len(response.data['items']), 25)
         self.assertEqual(self.owned.constituents().count(), 25)
         self.assertFalse(Constituenta.objects.filter(pk=x1.pk).exists())

rsconcept/backend/apps/rsform/tests/s_views/t_versions.py

@@ -15,10 +15,9 @@ class TestVersionViews(EndpointTester):
 
     def setUp(self):
         super().setUp()
-        self.owned = RSForm.create(title='Test', alias='T1', owner=self.user).item
-        self.schema = RSForm(self.owned)
-        self.unowned = RSForm.create(title='Test2', alias='T2').item
-        self.x1 = self.schema.insert_new(
+        self.owned = RSForm.objects.create(title='Test', alias='T1', owner=self.user)
+        self.unowned = RSForm.objects.create(title='Test2', alias='T2')
+        self.x1 = self.owned.insert_new(
             alias='X1',
             convention='testStart'
         )
@@ -135,14 +134,14 @@ class TestVersionViews(EndpointTester):
     @decl_endpoint('/api/versions/{version}/restore', method='patch')
     def test_restore_version(self):
         x1 = self.x1
-        x2 = self.schema.insert_new('X2')
-        d1 = self.schema.insert_new('D1', term_raw='TestTerm')
+        x2 = self.owned.insert_new('X2')
+        d1 = self.owned.insert_new('D1', term_raw='TestTerm')
         data = {'version': '1.0.0', 'description': 'test'}
         version_id = self._create_version(data=data)
         invalid_id = version_id + 1337
 
         d1.delete()
-        x3 = self.schema.insert_new('X3')
+        x3 = self.owned.insert_new('X3')
         x1.order = x3.order
         x1.convention = 'Test2'
         x1.term_raw = 'Test'

rsconcept/backend/apps/rsform/views/library.py

@@ -85,7 +85,11 @@ class LibraryViewSet(viewsets.ModelViewSet):
         serializer = s.LibraryItemCloneSerializer(data=request.data)
         serializer.is_valid(raise_exception=True)
         item = self._get_item()
-        clone = deepcopy(item)
+        if item.item_type != m.LibraryItemType.RSFORM:
+            return Response(status=c.HTTP_400_BAD_REQUEST)
+
+        schema = m.RSForm.objects.get(pk=item.pk)
+        clone = deepcopy(schema)
         clone.pk = None
         clone.owner = self.request.user
         clone.title = serializer.validated_data['title']
@@ -98,18 +102,16 @@ class LibraryViewSet(viewsets.ModelViewSet):
 
         with transaction.atomic():
             clone.save()
-            if clone.item_type == m.LibraryItemType.RSFORM:
-                need_filter = 'items' in request.data
-                for cst in m.RSForm(item).constituents():
-                    if not need_filter or cst.pk in request.data['items']:
-                        cst.pk = None
-                        cst.schema = clone
-                        cst.save()
-                return Response(
-                    status=c.HTTP_201_CREATED,
-                    data=s.RSFormParseSerializer(clone).data
-                )
-        return Response(status=c.HTTP_400_BAD_REQUEST)
+            need_filter = 'items' in request.data
+            for cst in schema.constituents():
+                if not need_filter or cst.pk in request.data['items']:
+                    cst.pk = None
+                    cst.schema = clone
+                    cst.save()
+            return Response(
+                status=c.HTTP_201_CREATED,
+                data=s.RSFormParseSerializer(clone).data
+            )
 
     @extend_schema(
         summary='subscribe to item',

rsconcept/backend/apps/rsform/views/operations.py

@@ -27,7 +27,7 @@ def inline_synthesis(request: Request):
     )
     serializer.is_valid(raise_exception=True)
 
-    schema = m.RSForm(serializer.validated_data['receiver'])
+    schema = cast(m.RSForm, serializer.validated_data['receiver'])
     items = cast(list[m.Constituenta], serializer.validated_data['items'])
 
     with transaction.atomic():
@@ -46,5 +46,5 @@ def inline_synthesis(request: Request):
 
     return Response(
         status=c.HTTP_200_OK,
-        data=s.RSFormParseSerializer(schema.item).data
+        data=s.RSFormParseSerializer(schema).data
     )

rsconcept/backend/apps/rsform/views/rsforms.py

@@ -25,11 +25,11 @@ from .. import utils
 @extend_schema_view()
 class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.RetrieveAPIView):
     ''' Endpoint: RSForm operations. '''
-    queryset = m.LibraryItem.objects.filter(item_type=m.LibraryItemType.RSFORM)
+    queryset = m.RSForm.objects.all()
     serializer_class = s.LibraryItemSerializer
 
     def _get_schema(self) -> m.RSForm:
-        return m.RSForm(cast(m.LibraryItem, self.get_object()))
+        return cast(m.RSForm, self.get_object())
 
     def get_permissions(self):
         ''' Determine permission class. '''
@@ -72,7 +72,7 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
         serializer = s.CstCreateSerializer(data=request.data)
         serializer.is_valid(raise_exception=True)
         data = serializer.validated_data
-        if 'insert_after' in data:
+        if 'insert_after' in data and data['insert_after'] is not None:
             try:
                 insert_after = m.Constituenta.objects.get(pk=data['insert_after'])
             except m.LibraryItem.DoesNotExist:
@@ -81,12 +81,12 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
             insert_after = None
         new_cst = schema.create_cst(data, insert_after)
 
-        schema.item.refresh_from_db()
+        schema.refresh_from_db()
         response = Response(
             status=c.HTTP_201_CREATED,
             data={
                 'new_cst': s.CstSerializer(new_cst).data,
-                'schema': s.RSFormParseSerializer(schema.item).data
+                'schema': s.RSFormParseSerializer(schema).data
             }
         )
         response['Location'] = new_cst.get_absolute_url()
@@ -108,11 +108,11 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
         ''' Produce a term for every element of the target constituenta typification. '''
         schema = self._get_schema()
 
-        serializer = s.CstTargetSerializer(data=request.data, context={'schema': schema.item})
+        serializer = s.CstTargetSerializer(data=request.data, context={'schema': schema})
         serializer.is_valid(raise_exception=True)
         cst = cast(m.Constituenta, serializer.validated_data['target'])
 
-        schema_details = s.RSFormParseSerializer(schema.item).data['items']
+        schema_details = s.RSFormParseSerializer(schema).data['items']
         cst_parse = next(item for item in schema_details if item['id'] == cst.id)['parse']
         if not cst_parse['typification']:
             return Response(
@@ -125,7 +125,7 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
             status=c.HTTP_200_OK,
             data={
                 'cst_list': result,
-                'schema': s.RSFormParseSerializer(schema.item).data
+                'schema': s.RSFormParseSerializer(schema).data
             }
         )
 
@@ -144,7 +144,7 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
     def cst_rename(self, request: Request, pk):
         ''' Rename constituenta possibly changing type. '''
         schema = self._get_schema()
-        serializer = s.CstRenameSerializer(data=request.data, context={'schema': schema.item})
+        serializer = s.CstRenameSerializer(data=request.data, context={'schema': schema})
         serializer.is_valid(raise_exception=True)
 
         cst = cast(m.Constituenta, serializer.validated_data['target'])
@@ -156,14 +156,14 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
         with transaction.atomic():
             cst.save()
             schema.apply_mapping(mapping={old_alias: cst.alias}, change_aliases=False)
-            schema.item.refresh_from_db()
+            schema.refresh_from_db()
             cst.refresh_from_db()
 
         return Response(
             status=c.HTTP_200_OK,
             data={
                 'new_cst': s.CstSerializer(cst).data,
-                'schema': s.RSFormParseSerializer(schema.item).data
+                'schema': s.RSFormParseSerializer(schema).data
             }
         )
 
@@ -184,7 +184,7 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
         schema = self._get_schema()
         serializer = s.CstSubstituteSerializer(
             data=request.data,
-            context={'schema': schema.item}
+            context={'schema': schema}
         )
         serializer.is_valid(raise_exception=True)
 
@@ -193,10 +193,10 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
                 original = cast(m.Constituenta, substitution['original'])
                 replacement = cast(m.Constituenta, substitution['substitution'])
                 schema.substitute(original, replacement, substitution['transfer_term'])
-            schema.item.refresh_from_db()
+            schema.refresh_from_db()
         return Response(
             status=c.HTTP_200_OK,
-            data=s.RSFormParseSerializer(schema.item).data
+            data=s.RSFormParseSerializer(schema).data
         )
 
     @extend_schema(
@@ -216,14 +216,14 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
         schema = self._get_schema()
         serializer = s.CstListSerializer(
             data=request.data,
-            context={'schema': schema.item}
+            context={'schema': schema}
         )
         serializer.is_valid(raise_exception=True)
         schema.delete_cst(serializer.validated_data['items'])
-        schema.item.refresh_from_db()
+        schema.refresh_from_db()
         return Response(
             status=c.HTTP_200_OK,
-            data=s.RSFormParseSerializer(schema.item).data
+            data=s.RSFormParseSerializer(schema).data
         )
 
     @extend_schema(
@@ -243,7 +243,7 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
         schema = self._get_schema()
         serializer = s.CstMoveSerializer(
             data=request.data,
-            context={'schema': schema.item}
+            context={'schema': schema}
         )
         serializer.is_valid(raise_exception=True)
         schema.move_cst(
@@ -252,7 +252,7 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
         )
         return Response(
             status=c.HTTP_200_OK,
-            data=s.RSFormParseSerializer(schema.item).data
+            data=s.RSFormParseSerializer(schema).data
         )
 
     @extend_schema(
@@ -272,7 +272,7 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
         schema.reset_aliases()
         return Response(
             status=c.HTTP_200_OK,
-            data=s.RSFormParseSerializer(schema.item).data
+            data=s.RSFormParseSerializer(schema).data
         )
 
     @extend_schema(
@@ -292,7 +292,7 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
         schema.restore_order()
         return Response(
             status=c.HTTP_200_OK,
-            data=s.RSFormParseSerializer(schema.item).data
+            data=s.RSFormParseSerializer(schema).data
         )
 
     @extend_schema(
@@ -314,7 +314,7 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
         schema = self._get_schema()
         load_metadata = input_serializer.validated_data['load_metadata']
         data = utils.read_zipped_json(request.FILES['file'].file, utils.EXTEOR_INNER_FILENAME)
-        data['id'] = schema.item.pk
+        data['id'] = schema.pk
 
         serializer = s.RSFormTRSSerializer(
             data=data,
@@ -324,7 +324,7 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
         result = serializer.save()
         return Response(
             status=c.HTTP_200_OK,
-            data=s.RSFormParseSerializer(result.item).data
+            data=s.RSFormParseSerializer(result).data
         )
 
     @extend_schema(
@@ -357,7 +357,7 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
     @action(detail=True, methods=['get'], url_path='details')
     def details(self, request: Request, pk):
         ''' Endpoint: Detailed schema view including statuses and parse. '''
-        serializer = s.RSFormParseSerializer(cast(m.LibraryItem, self.get_object()))
+        serializer = s.RSFormParseSerializer(self._get_schema())
         return Response(
             status=c.HTTP_200_OK,
             data=serializer.data
@@ -421,7 +421,7 @@ class RSFormViewSet(viewsets.GenericViewSet, generics.ListAPIView, generics.Retr
         ''' Endpoint: Download Exteor compatible file. '''
         data = s.RSFormTRSSerializer(self._get_schema()).data
         file = utils.write_zipped_json(data, utils.EXTEOR_INNER_FILENAME)
-        filename = utils.filename_for_schema(self._get_schema().item.alias)
+        filename = utils.filename_for_schema(self._get_schema().alias)
         response = HttpResponse(file, content_type='application/zip')
         response['Content-Disposition'] = f'attachment; filename={filename}'
         return response
@@ -451,7 +451,7 @@ class TrsImportView(views.APIView):
         )
         serializer.is_valid(raise_exception=True)
         schema = serializer.save()
-        result = s.LibraryItemSerializer(schema.item)
+        result = s.LibraryItemSerializer(schema)
         return Response(
             status=c.HTTP_201_CREATED,
             data=result.data
@@ -483,7 +483,7 @@ def create_rsform(request: Request):
         serializer_rsform = s.RSFormTRSSerializer(data=data, context={'load_meta': True})
         serializer_rsform.is_valid(raise_exception=True)
         schema = serializer_rsform.save()
-    result = s.LibraryItemSerializer(schema.item)
+    result = s.LibraryItemSerializer(schema)
     return Response(
         status=c.HTTP_201_CREATED,
         data=result.data

rsconcept/backend/apps/rsform/views/versions.py

@@ -42,10 +42,11 @@ class VersionViewset(
         ''' Restore version data into current item. '''
         version = cast(m.Version, self.get_object())
         item = cast(m.LibraryItem, version.item)
-        s.RSFormSerializer(item).restore_from_version(version.data)
+        schema = m.RSForm.objects.get(pk=item.pk)
+        s.RSFormSerializer(schema).restore_from_version(version.data)
         return Response(
             status=c.HTTP_200_OK,
-            data=s.RSFormParseSerializer(item).data
+            data=s.RSFormParseSerializer(schema).data
         )
 
 
@@ -65,7 +66,7 @@ class VersionViewset(
 def create_version(request: Request, pk_item: int):
     ''' Endpoint: Create new version for RSForm copying current content. '''
     try:
-        item = m.LibraryItem.objects.get(pk=pk_item)
+        item = m.RSForm.objects.get(pk=pk_item)
     except m.LibraryItem.DoesNotExist:
         return Response(status=c.HTTP_404_NOT_FOUND)
     creator = request.user
@@ -75,7 +76,7 @@ def create_version(request: Request, pk_item: int):
     version_input = s.VersionCreateSerializer(data=request.data)
     version_input.is_valid(raise_exception=True)
     data = s.RSFormSerializer(item).to_versioned_data()
-    result = m.RSForm(item).create_version(
+    result = item.create_version(
         version=version_input.validated_data['version'],
         description=version_input.validated_data['description'],
         data=data
@@ -102,8 +103,8 @@ def create_version(request: Request, pk_item: int):
 def retrieve_version(request: Request, pk_item: int, pk_version: int):
     ''' Endpoint: Retrieve version for RSForm. '''
     try:
-        item = m.LibraryItem.objects.get(pk=pk_item)
-    except m.LibraryItem.DoesNotExist:
+        item = m.RSForm.objects.get(pk=pk_item)
+    except m.RSForm.DoesNotExist:
         return Response(status=c.HTTP_404_NOT_FOUND)
     try:
         version = m.Version.objects.get(pk=pk_version)
@@ -135,7 +136,8 @@ def export_file(request: Request, pk: int):
         version = m.Version.objects.get(pk=pk)
     except m.Version.DoesNotExist:
         return Response(status=c.HTTP_404_NOT_FOUND)
-    data = s.RSFormTRSSerializer(m.RSForm(version.item)).from_versioned_data(version.data)
+    schema = m.RSForm.objects.get(pk=version.item.pk)
+    data = s.RSFormTRSSerializer(schema).from_versioned_data(version.data)
     file = utils.write_zipped_json(data, utils.EXTEOR_INNER_FILENAME)
     filename = utils.filename_for_schema(data['alias'])
     response = HttpResponse(file, content_type='application/zip')

rsconcept/backend/project/settings.py

@@ -79,6 +79,8 @@ INSTALLED_APPS = [
     'drf_spectacular',
     'drf_spectacular_sidecar',
 ]
+if DEBUG:
+    INSTALLED_APPS.append('django_extensions')
 
 
 REST_FRAMEWORK = {
@@ -128,7 +130,6 @@ APPEND_SLASH = False
 
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/4.1/howto/static-files/
-
 STATIC_ROOT = os.environ.get('STATIC_ROOT', os.path.join(BASE_DIR, 'static'))
 STATIC_URL = 'static/'
 MEDIA_ROOT = os.environ.get('MEDIA_ROOT', os.path.join(BASE_DIR, 'media'))
@@ -156,7 +157,6 @@ WSGI_APPLICATION = 'project.wsgi.application'
 
 # Database
 # https://docs.djangoproject.com/en/4.1/ref/settings/#databases
-
 DATABASES = {
     'default': {
         'ENGINE': os.environ.get('DB_ENGINE', 'django.db.backends.sqlite3'),
@@ -198,7 +198,6 @@ SPECTACULAR_SETTINGS = {
 
 # Password validation
 # https://docs.djangoproject.com/en/4.1/ref/settings/#auth-password-validators
-
 AUTH_PASSWORD_VALIDATORS: list[str] = [
     # NOTE: Password validators disabled
     # {
@@ -231,6 +230,14 @@ USE_TZ = True
 DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
 
 
+# Graph model settings for visualization
+# https://django-extensions.readthedocs.io/en/latest/graph_models.html
+GRAPH_MODELS = {
+    'all_applications': True,
+    'group_models': True,
+}
+
+
 LOGGING = {
     'version': 1,
     'disable_existing_loggers': False,

rsconcept/backend/requirements-dev.txt

@@ -14,6 +14,7 @@ psycopg2-binary
 gunicorn
 
 djangorestframework-stubs[compatible-mypy]
+django-extensions
 mypy
 pylint
 coverage

rsconcept/backend/shared/messages.py

@@ -50,10 +50,6 @@ def typificationInvalidStr():
     return 'Invalid typification string'
 
 
-def libraryTypeUnexpected():
-    return 'Attempting to use invalid adaptor for non-RSForm item'
-
-
 def exteorFileVersionNotSupported():
     return 'Некорректный формат файла Экстеор. Сохраните файл в новой версии'
 

rsconcept/frontend/Dockerfile

@@ -12,12 +12,13 @@ WORKDIR /result
 
 RUN npm install -g typescript vite
 
+COPY package.json package-lock.json ./
+RUN npm ci
+
 COPY ./ ./
 COPY ./env/.env.$BUILD_TYPE ./
 RUN rm -rf ./env
 
-RUN npm ci
-
 ENV NODE_ENV=production
 RUN npm run build
 

rsconcept/frontend/package-lock.json

@@ -15,6 +15,7 @@
         "axios": "^1.7.2",
         "clsx": "^2.1.1",
         "framer-motion": "^11.3.8",
+        "html-to-image": "^1.11.11",
         "js-file-download": "^0.4.12",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
@@ -6808,6 +6809,12 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/html-to-image": {
+      "version": "1.11.11",
+      "resolved": "https://registry.npmjs.org/html-to-image/-/html-to-image-1.11.11.tgz",
+      "integrity": "sha512-9gux8QhvjRO/erSnDPv28noDZcPZmYE7e1vFsBLKLlRlKDSqNJYebj6Qz1TGd5lsRV+X+xYyjCKjuZdABinWjA==",
+      "license": "MIT"
+    },
     "node_modules/https-proxy-agent": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-5.0.1.tgz",

rsconcept/frontend/package.json

@@ -4,7 +4,7 @@
   "version": "1.0.0",
   "type": "module",
   "scripts": {
-    "prepare": "lezer-generator src/components/RSInput/rslang/rslangFull.grammar -o src/components/RSInput/rslang/parser.ts && lezer-generator src/components/RefsInput/parse/refsText.grammar -o src/components/RefsInput/parse/parser.ts",
+    "generate": "lezer-generator src/components/RSInput/rslang/rslangFull.grammar -o src/components/RSInput/rslang/parser.ts && lezer-generator src/components/RefsInput/parse/refsText.grammar -o src/components/RefsInput/parse/parser.ts",
     "test": "jest",
     "dev": "vite --host",
     "build": "tsc && vite build",
@@ -19,6 +19,7 @@
     "axios": "^1.7.2",
     "clsx": "^2.1.1",
     "framer-motion": "^11.3.8",
+    "html-to-image": "^1.11.11",
     "js-file-download": "^0.4.12",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",

rsconcept/frontend/src/app/backendAPI.ts

@@ -7,17 +7,16 @@ import { toast } from 'react-toastify';
 
 import { type ErrorData } from '@/components/info/InfoError';
 import { ILexemeData, ITextRequest, ITextResult, IWordFormPlain } from '@/models/language';
-import {
-  AccessPolicy,
-  ILibraryItem,
-  ILibraryUpdateData,
-  ITargetAccessPolicy,
-  ITargetLocation,
-  IVersionData,
-  LibraryItemType
-} from '@/models/library';
+import { ILibraryItem, ILibraryUpdateData, ITargetAccessPolicy, ITargetLocation, IVersionData } from '@/models/library';
 import { ILibraryCreateData } from '@/models/library';
-import { IOperationSchemaData } from '@/models/oss';
+import {
+  ICstSubstituteData,
+  IOperationCreateData,
+  IOperationCreatedResponse,
+  IOperationSchemaData,
+  IPositionsData,
+  ITargetOperation
+} from '@/models/oss';
 import {
   IConstituentaList,
   IConstituentaMeta,
@@ -25,7 +24,6 @@ import {
   ICstCreatedResponse,
   ICstMovetoData,
   ICstRenameData,
-  ICstSubstituteData,
   ICstUpdateData,
   IInlineSynthesisData,
   IProduceStructureResponse,
@@ -233,30 +231,6 @@ export function postCloneLibraryItem(target: string, request: FrontExchange<IRSF
   });
 }
 
-export function getOssDetails(target: string, request: FrontPull<IOperationSchemaData>) {
-  request.setLoading!(false);
-  request.onSuccess({
-    id: Number(target),
-    comment: '123',
-    alias: 'oss1',
-    access_policy: AccessPolicy.PUBLIC,
-    editors: [],
-    owner: 1,
-    item_type: LibraryItemType.OSS,
-    location: '/U',
-    read_only: false,
-    subscribers: [],
-    time_create: '0',
-    time_update: '0',
-    title: 'TestOss',
-    visible: false
-  });
-  // AxiosGet({
-  //   endpoint: `/api/oss/${target}`, // TODO: endpoint to access OSS
-  //   request: request
-  // });
-}
-
 export function getRSFormDetails(target: string, version: string, request: FrontPull<IRSFormData>) {
   if (!version) {
     AxiosGet({
@@ -357,7 +331,7 @@ export function getTRSFile(target: string, version: string, request: FrontPull<B
   }
 }
 
-export function postNewConstituenta(schema: string, request: FrontExchange<ICstCreateData, ICstCreatedResponse>) {
+export function postCreateConstituenta(schema: string, request: FrontExchange<ICstCreateData, ICstCreatedResponse>) {
   AxiosPost({
     endpoint: `/api/rsforms/${schema}/cst-create`,
     request: request
@@ -445,6 +419,37 @@ export function patchInlineSynthesis(request: FrontExchange<IInlineSynthesisData
   });
 }
 
+export function getOssDetails(target: string, request: FrontPull<IOperationSchemaData>) {
+  AxiosGet({
+    endpoint: `/api/oss/${target}/details`,
+    request: request
+  });
+}
+
+export function patchUpdatePositions(schema: string, request: FrontPush<IPositionsData>) {
+  AxiosPatch({
+    endpoint: `/api/oss/${schema}/update-positions`,
+    request: request
+  });
+}
+
+export function postCreateOperation(
+  schema: string,
+  request: FrontExchange<IOperationCreateData, IOperationCreatedResponse>
+) {
+  AxiosPost({
+    endpoint: `/api/oss/${schema}/create-operation`,
+    request: request
+  });
+}
+
+export function patchDeleteOperation(schema: string, request: FrontExchange<ITargetOperation, IOperationSchemaData>) {
+  AxiosPatch({
+    endpoint: `/api/oss/${schema}/delete-operation`,
+    request: request
+  });
+}
+
 export function postInflectText(request: FrontExchange<IWordFormPlain, ITextResult>) {
   AxiosPost({
     endpoint: `/api/cctext/inflect`,

rsconcept/frontend/src/components/Icons.tsx

@@ -38,6 +38,7 @@ export { LuFolderClosed   as IconFolderClosed }   from 'react-icons/lu';
 export { LuFolderDot      as IconFolderEmpty }    from 'react-icons/lu';
 export { LuLightbulb      as IconHelp }           from 'react-icons/lu';
 export { LuLightbulbOff   as IconHelpOff }        from 'react-icons/lu';
+export { TbGridDots       as IconGrid }           from 'react-icons/tb';
 export { RiPushpinFill    as IconPin }            from 'react-icons/ri';
 export { RiUnpinLine      as IconUnpin }          from 'react-icons/ri';
 export { BiCaretDown      as IconSortDesc }       from 'react-icons/bi';

rsconcept/frontend/src/components/select/PickSubstitutions.tsx

@@ -8,7 +8,7 @@ import DataTable, { createColumnHelper } from '@/components/ui/DataTable';
 import Label from '@/components/ui/Label';
 import MiniButton from '@/components/ui/MiniButton';
 import { useConceptOptions } from '@/context/ConceptOptionsContext';
-import { IConstituenta, IRSForm, ISubstitution } from '@/models/rsform';
+import { IConstituenta, IRSForm, ISingleSubstitution } from '@/models/rsform';
 import { describeConstituenta } from '@/utils/labels';
 
 import {
@@ -34,11 +34,11 @@ interface PickSubstitutionsProps {
   filter1?: (cst: IConstituenta) => boolean;
   filter2?: (cst: IConstituenta) => boolean;
 
-  items: ISubstitution[];
-  setItems: React.Dispatch<React.SetStateAction<ISubstitution[]>>;
+  items: ISingleSubstitution[];
+  setItems: React.Dispatch<React.SetStateAction<ISingleSubstitution[]>>;
 }
 
-function SubstitutionIcon({ item }: { item: ISubstitution }) {
+function SubstitutionIcon({ item }: { item: ISingleSubstitution }) {
   if (item.deleteRight) {
     if (item.takeLeftTerm) {
       return <IconPageRight size='1.2rem' />;
@@ -54,7 +54,7 @@ function SubstitutionIcon({ item }: { item: ISubstitution }) {
   }
 }
 
-const columnHelper = createColumnHelper<ISubstitution>();
+const columnHelper = createColumnHelper<ISingleSubstitution>();
 
 function PickSubstitutions({
   items,
@@ -80,7 +80,7 @@ function PickSubstitutions({
     if (!leftCst || !rightCst) {
       return;
     }
-    const newSubstitution: ISubstitution = {
+    const newSubstitution: ISingleSubstitution = {
       leftCst: leftCst,
       rightCst: rightCst,
       deleteRight: deleteRight,
@@ -99,7 +99,7 @@ function PickSubstitutions({
   const handleDeleteRow = useCallback(
     (row: number) => {
       setItems(prev => {
-        const newItems: ISubstitution[] = [];
+        const newItems: ISingleSubstitution[] = [];
         prev.forEach((item, index) => {
           if (index !== row) {
             newItems.push(item);

rsconcept/frontend/src/components/select/SelectOperation.tsx

@@ -0,0 +1,58 @@
+'use client';
+
+import clsx from 'clsx';
+import { useCallback, useMemo } from 'react';
+
+import { IOperation, OperationID } from '@/models/oss';
+import { matchOperation } from '@/models/ossAPI';
+
+import { CProps } from '../props';
+import SelectSingle from '../ui/SelectSingle';
+
+interface SelectOperationProps extends CProps.Styling {
+  items?: IOperation[];
+  value?: IOperation;
+  onSelectValue: (newValue?: IOperation) => void;
+  placeholder?: string;
+}
+
+function SelectOperation({
+  className,
+  items,
+  value,
+  onSelectValue,
+  placeholder = 'Выберите операцию',
+  ...restProps
+}: SelectOperationProps) {
+  const options = useMemo(() => {
+    return (
+      items?.map(cst => ({
+        value: cst.id,
+        label: `${cst.alias}: ${cst.title}`
+      })) ?? []
+    );
+  }, [items]);
+
+  const filter = useCallback(
+    (option: { value: OperationID | undefined; label: string }, inputValue: string) => {
+      const operation = items?.find(item => item.id === option.value);
+      return !operation ? false : matchOperation(operation, inputValue);
+    },
+    [items]
+  );
+
+  return (
+    <SelectSingle
+      className={clsx('text-ellipsis', className)}
+      options={options}
+      value={value ? { value: value.id, label: `${value.alias}: ${value.title}` } : undefined}
+      onChange={data => onSelectValue(items?.find(cst => cst.id === data?.value))}
+      // @ts-expect-error: TODO: use type definitions from react-select in filter object
+      filterOption={filter}
+      placeholder={placeholder}
+      {...restProps}
+    />
+  );
+}
+
+export default SelectOperation;

rsconcept/frontend/src/components/ui/TextArea.tsx

@@ -25,8 +25,8 @@ function TextArea({
     <div
       className={clsx(
         {
-          'flex flex-col gap-2': !dense,
-          'flex items-center gap-3': dense
+          'flex flex-col flex-grow gap-2': !dense,
+          'flex flex-grow items-center gap-3': dense
         },
         dense && className
       )}

rsconcept/frontend/src/context/OssContext.tsx

@@ -5,18 +5,21 @@ import { createContext, useCallback, useContext, useMemo, useState } from 'react
 import {
   type DataCallback,
   deleteUnsubscribe,
+  patchDeleteOperation,
   patchEditorsSet as patchSetEditors,
   patchLibraryItem,
   patchSetAccessPolicy,
   patchSetLocation,
   patchSetOwner,
+  patchUpdatePositions,
+  postCreateOperation,
   postSubscribe
 } from '@/app/backendAPI';
 import { type ErrorData } from '@/components/info/InfoError';
 import useOssDetails from '@/hooks/useOssDetails';
 import { AccessPolicy, ILibraryItem } from '@/models/library';
 import { ILibraryUpdateData } from '@/models/library';
-import { IOperationSchema } from '@/models/oss';
+import { IOperation, IOperationCreateData, IOperationSchema, IPositionsData, ITargetOperation } from '@/models/oss';
 import { UserID } from '@/models/user';
 import { contextOutsideScope } from '@/utils/labels';
 
@@ -43,6 +46,10 @@ interface IOssContext {
   setAccessPolicy: (newPolicy: AccessPolicy, callback?: () => void) => void;
   setLocation: (newLocation: string, callback?: () => void) => void;
   setEditors: (newEditors: UserID[], callback?: () => void) => void;
+
+  savePositions: (data: IPositionsData, callback?: () => void) => void;
+  createOperation: (data: IOperationCreateData, callback?: DataCallback<IOperation>) => void;
+  deleteOperation: (data: ITargetOperation, callback?: () => void) => void;
 }
 
 const OssContext = createContext<IOssContext | null>(null);
@@ -63,13 +70,11 @@ export const OssState = ({ itemID, children }: OssStateProps) => {
   const library = useLibrary();
   const { user } = useAuth();
   const {
-    schema: schema, // prettier: split lines
+    schema, // prettier: split lines
     error: errorLoading,
     setSchema,
     loading
-  } = useOssDetails({
-    target: itemID
-  });
+  } = useOssDetails({ target: itemID });
   const [processing, setProcessing] = useState(false);
   const [processingError, setProcessingError] = useState<ErrorData>(undefined);
 
@@ -249,6 +254,59 @@ export const OssState = ({ itemID, children }: OssStateProps) => {
     [itemID, schema]
   );
 
+  const savePositions = useCallback(
+    (data: IPositionsData, callback?: () => void) => {
+      setProcessingError(undefined);
+      patchUpdatePositions(itemID, {
+        data: data,
+        showError: true,
+        setLoading: setProcessing,
+        onError: setProcessingError,
+        onSuccess: () => {
+          library.localUpdateTimestamp(Number(itemID));
+          if (callback) callback();
+        }
+      });
+    },
+    [itemID, library]
+  );
+
+  const createOperation = useCallback(
+    (data: IOperationCreateData, callback?: DataCallback<IOperation>) => {
+      setProcessingError(undefined);
+      postCreateOperation(itemID, {
+        data: data,
+        showError: true,
+        setLoading: setProcessing,
+        onError: setProcessingError,
+        onSuccess: newData => {
+          setSchema(newData.oss);
+          library.localUpdateTimestamp(newData.oss.id);
+          if (callback) callback(newData.new_operation);
+        }
+      });
+    },
+    [itemID, library, setSchema]
+  );
+
+  const deleteOperation = useCallback(
+    (data: ITargetOperation, callback?: () => void) => {
+      setProcessingError(undefined);
+      patchDeleteOperation(itemID, {
+        data: data,
+        showError: true,
+        setLoading: setProcessing,
+        onError: setProcessingError,
+        onSuccess: newData => {
+          setSchema(newData);
+          library.localUpdateTimestamp(newData.id);
+          if (callback) callback();
+        }
+      });
+    },
+    [itemID, library, setSchema]
+  );
+
   return (
     <OssContext.Provider
       value={{
@@ -267,7 +325,11 @@ export const OssState = ({ itemID, children }: OssStateProps) => {
         setOwner,
         setEditors,
         setAccessPolicy,
-        setLocation
+        setLocation,
+
+        savePositions,
+        createOperation,
+        deleteOperation
       }}
     >
       {children}

rsconcept/frontend/src/context/RSFormContext.tsx

@@ -24,14 +24,15 @@ import {
   patchSubstituteConstituents,
   patchUploadTRS,
   patchVersion,
+  postCreateConstituenta,
   postCreateVersion,
-  postNewConstituenta,
   postSubscribe
 } from '@/app/backendAPI';
 import { type ErrorData } from '@/components/info/InfoError';
 import useRSFormDetails from '@/hooks/useRSFormDetails';
 import { AccessPolicy, ILibraryItem, IVersionData, VersionID } from '@/models/library';
 import { ILibraryUpdateData } from '@/models/library';
+import { ICstSubstituteData } from '@/models/oss';
 import {
   ConstituentaID,
   IConstituentaList,
@@ -39,7 +40,6 @@ import {
   ICstCreateData,
   ICstMovetoData,
   ICstRenameData,
-  ICstSubstituteData,
   ICstUpdateData,
   IInlineSynthesisData,
   IRSForm,
@@ -399,7 +399,7 @@ export const RSFormState = ({ itemID, versionID, children }: RSFormStateProps) =
   const cstCreate = useCallback(
     (data: ICstCreateData, callback?: DataCallback<IConstituentaMeta>) => {
       setProcessingError(undefined);
-      postNewConstituenta(itemID, {
+      postCreateConstituenta(itemID, {
         data: data,
         showError: true,
         setLoading: setProcessing,

rsconcept/frontend/src/dialogs/DlgCreateOperation/DlgCreateOperation.tsx

@@ -0,0 +1,147 @@
+'use client';
+
+import clsx from 'clsx';
+import { useLayoutEffect, useMemo, useState } from 'react';
+import { TabList, TabPanel, Tabs } from 'react-tabs';
+
+import BadgeHelp from '@/components/info/BadgeHelp';
+import Modal from '@/components/ui/Modal';
+import Overlay from '@/components/ui/Overlay';
+import TabLabel from '@/components/ui/TabLabel';
+import { useLibrary } from '@/context/LibraryContext';
+import { LibraryItemID } from '@/models/library';
+import { HelpTopic, Position2D } from '@/models/miscellaneous';
+import { IOperationCreateData, IOperationPosition, IOperationSchema, OperationID, OperationType } from '@/models/oss';
+import { PARAMETER } from '@/utils/constants';
+import { describeOperationType, labelOperationType } from '@/utils/labels';
+
+import TabInputOperation from './TabInputOperation';
+import TabSynthesisOperation from './TabSynthesisOperation';
+
+interface DlgCreateOperationProps {
+  hideWindow: () => void;
+  oss: IOperationSchema;
+  positions: IOperationPosition[];
+  insertPosition: Position2D;
+  onCreate: (data: IOperationCreateData) => void;
+}
+
+export enum TabID {
+  INPUT = 0,
+  SYNTHESIS = 1
+}
+
+function DlgCreateOperation({ hideWindow, oss, insertPosition, positions, onCreate }: DlgCreateOperationProps) {
+  const library = useLibrary();
+  const [activeTab, setActiveTab] = useState(TabID.INPUT);
+
+  const [alias, setAlias] = useState('');
+  const [title, setTitle] = useState('');
+  const [comment, setComment] = useState('');
+  const [inputs, setInputs] = useState<OperationID[]>([]);
+  const [attachedID, setAttachedID] = useState<LibraryItemID | undefined>(undefined);
+
+  const isValid = useMemo(() => alias !== '', [alias]);
+
+  useLayoutEffect(() => {
+    if (attachedID) {
+      const schema = library.items.find(value => value.id === attachedID);
+      if (schema) {
+        setAlias(schema.alias);
+        setTitle(schema.title);
+        setComment(schema.comment);
+      }
+    }
+  }, [attachedID, library]);
+
+  const handleSubmit = () => {
+    const data: IOperationCreateData = {
+      item_data: {
+        position_x: insertPosition.x,
+        position_y: insertPosition.y,
+        alias: alias,
+        title: title,
+        comment: comment,
+        operation_type: activeTab === TabID.INPUT ? OperationType.INPUT : OperationType.SYNTHESIS,
+        result: activeTab === TabID.INPUT ? attachedID ?? null : null
+      },
+      positions: positions,
+      arguments: activeTab === TabID.INPUT ? undefined : inputs.length > 0 ? inputs : undefined
+    };
+    onCreate(data);
+  };
+
+  const inputPanel = useMemo(
+    () => (
+      <TabPanel>
+        <TabInputOperation
+          alias={alias}
+          setAlias={setAlias}
+          comment={comment}
+          setComment={setComment}
+          title={title}
+          setTitle={setTitle}
+          attachedID={attachedID}
+          setAttachedID={setAttachedID}
+        />
+      </TabPanel>
+    ),
+    [alias, comment, title, attachedID]
+  );
+
+  const synthesisPanel = useMemo(
+    () => (
+      <TabPanel>
+        <TabSynthesisOperation
+          oss={oss}
+          alias={alias}
+          setAlias={setAlias}
+          comment={comment}
+          setComment={setComment}
+          title={title}
+          setTitle={setTitle}
+          setInputs={setInputs}
+        />
+      </TabPanel>
+    ),
+    [oss, alias, comment, title]
+  );
+
+  return (
+    <Modal
+      header='Создание операции'
+      submitText='Создать'
+      hideWindow={hideWindow}
+      canSubmit={isValid}
+      onSubmit={handleSubmit}
+      className='w-[40rem] px-6 min-h-[35rem]'
+    >
+      <Overlay position='top-0 right-0'>
+        <BadgeHelp topic={HelpTopic.CC_OSS} className={clsx(PARAMETER.TOOLTIP_WIDTH, 'sm:max-w-[40rem]')} offset={14} />
+      </Overlay>
+
+      <Tabs
+        selectedTabClassName='clr-selected'
+        className='flex flex-col'
+        selectedIndex={activeTab}
+        onSelect={setActiveTab}
+      >
+        <TabList className={clsx('mb-3 self-center', 'flex', 'border divide-x rounded-none')}>
+          <TabLabel
+            title={describeOperationType(OperationType.INPUT)}
+            label={labelOperationType(OperationType.INPUT)}
+          />
+          <TabLabel
+            title={describeOperationType(OperationType.SYNTHESIS)}
+            label={labelOperationType(OperationType.SYNTHESIS)}
+          />
+        </TabList>
+
+        {inputPanel}
+        {synthesisPanel}
+      </Tabs>
+    </Modal>
+  );
+}
+
+export default DlgCreateOperation;

rsconcept/frontend/src/dialogs/DlgCreateOperation/TabInputOperation.tsx

@@ -0,0 +1,65 @@
+import PickSchema from '@/components/select/PickSchema';
+import Label from '@/components/ui/Label';
+import TextArea from '@/components/ui/TextArea';
+import TextInput from '@/components/ui/TextInput';
+import AnimateFade from '@/components/wrap/AnimateFade';
+import { LibraryItemID } from '@/models/library';
+import { limits, patterns } from '@/utils/constants';
+
+interface TabInputOperationProps {
+  alias: string;
+  setAlias: React.Dispatch<React.SetStateAction<string>>;
+  title: string;
+  setTitle: React.Dispatch<React.SetStateAction<string>>;
+  comment: string;
+  setComment: React.Dispatch<React.SetStateAction<string>>;
+  attachedID: LibraryItemID | undefined;
+  setAttachedID: React.Dispatch<React.SetStateAction<LibraryItemID | undefined>>;
+}
+
+function TabInputOperation({
+  alias,
+  setAlias,
+  title,
+  setTitle,
+  comment,
+  setComment,
+  attachedID,
+  setAttachedID
+}: TabInputOperationProps) {
+  return (
+    <AnimateFade className='cc-column'>
+      <TextInput
+        id='operation_title'
+        label='Полное название'
+        value={title}
+        onChange={event => setTitle(event.target.value)}
+      />
+      <div className='flex gap-6'>
+        <TextInput
+          id='operation_alias'
+          label='Сокращение'
+          className='w-[14rem]'
+          pattern={patterns.library_alias}
+          title={`не более ${limits.library_alias_len} символов`}
+          value={alias}
+          onChange={event => setAlias(event.target.value)}
+        />
+
+        <TextArea
+          id='operation_comment'
+          label='Описание'
+          noResize
+          rows={3}
+          value={comment}
+          onChange={event => setComment(event.target.value)}
+        />
+      </div>
+
+      <Label text='Загружаемая концептуальная схема' />
+      <PickSchema value={attachedID} onSelectValue={setAttachedID} rows={8} />
+    </AnimateFade>
+  );
+}
+
+export default TabInputOperation;

rsconcept/frontend/src/dialogs/DlgCreateOperation/TabSynthesisOperation.tsx

@@ -0,0 +1,92 @@
+'use client';
+
+import { useEffect, useState } from 'react';
+
+import SelectOperation from '@/components/select/SelectOperation';
+import FlexColumn from '@/components/ui/FlexColumn';
+import Label from '@/components/ui/Label';
+import TextArea from '@/components/ui/TextArea';
+import TextInput from '@/components/ui/TextInput';
+import AnimateFade from '@/components/wrap/AnimateFade';
+import { IOperation, IOperationSchema, OperationID } from '@/models/oss';
+import { limits, patterns } from '@/utils/constants';
+
+interface TabSynthesisOperationProps {
+  oss: IOperationSchema;
+  alias: string;
+  setAlias: React.Dispatch<React.SetStateAction<string>>;
+  title: string;
+  setTitle: React.Dispatch<React.SetStateAction<string>>;
+  comment: string;
+  setComment: React.Dispatch<React.SetStateAction<string>>;
+  setInputs: React.Dispatch<React.SetStateAction<OperationID[]>>;
+}
+
+function TabSynthesisOperation({
+  oss,
+  alias,
+  setAlias,
+  title,
+  setTitle,
+  comment,
+  setComment,
+  setInputs
+}: TabSynthesisOperationProps) {
+  const [left, setLeft] = useState<IOperation | undefined>(undefined);
+  const [right, setRight] = useState<IOperation | undefined>(undefined);
+
+  useEffect(() => {
+    const inputs: OperationID[] = [];
+    if (left) {
+      inputs.push(left.id);
+    }
+    if (right) {
+      inputs.push(right.id);
+    }
+    setInputs(inputs);
+  }, [setInputs, left, right]);
+
+  return (
+    <AnimateFade className='cc-column'>
+      <TextInput
+        id='operation_title'
+        label='Полное название'
+        value={title}
+        onChange={event => setTitle(event.target.value)}
+      />
+      <div className='flex gap-6'>
+        <TextInput
+          id='operation_alias'
+          label='Сокращение'
+          className='w-[14rem]'
+          pattern={patterns.library_alias}
+          title={`не более ${limits.library_alias_len} символов`}
+          value={alias}
+          onChange={event => setAlias(event.target.value)}
+        />
+
+        <TextArea
+          id='operation_comment'
+          label='Описание'
+          noResize
+          rows={3}
+          value={comment}
+          onChange={event => setComment(event.target.value)}
+        />
+      </div>
+
+      <div className='flex justify-between'>
+        <FlexColumn>
+          <Label text='Аргумент 1' />
+          <SelectOperation items={oss.items} value={left} onSelectValue={setLeft} />
+        </FlexColumn>
+        <FlexColumn>
+          <Label text='Аргумент 2' className='text-right' />
+          <SelectOperation items={oss.items} value={right} onSelectValue={setRight} />
+        </FlexColumn>
+      </div>
+    </AnimateFade>
+  );
+}
+
+export default TabSynthesisOperation;

rsconcept/frontend/src/dialogs/DlgCreateOperation/index.tsx

@@ -0,0 +1 @@
+export { default } from './DlgCreateOperation';

rsconcept/frontend/src/dialogs/DlgInlineSynthesis/DlgInlineSynthesis.tsx

@@ -8,7 +8,7 @@ import Modal, { ModalProps } from '@/components/ui/Modal';
 import TabLabel from '@/components/ui/TabLabel';
 import useRSFormDetails from '@/hooks/useRSFormDetails';
 import { LibraryItemID } from '@/models/library';
-import { IInlineSynthesisData, IRSForm, ISubstitution } from '@/models/rsform';
+import { IInlineSynthesisData, IRSForm, ISingleSubstitution } from '@/models/rsform';
 
 import TabConstituents from './TabConstituents';
 import TabSchema from './TabSchema';
@@ -30,7 +30,7 @@ function DlgInlineSynthesis({ hideWindow, receiver, onInlineSynthesis }: DlgInli
 
   const [donorID, setDonorID] = useState<LibraryItemID | undefined>(undefined);
   const [selected, setSelected] = useState<LibraryItemID[]>([]);
-  const [substitutions, setSubstitutions] = useState<ISubstitution[]>([]);
+  const [substitutions, setSubstitutions] = useState<ISingleSubstitution[]>([]);
 
   const source = useRSFormDetails({ target: donorID ? String(donorID) : undefined });
 

rsconcept/frontend/src/dialogs/DlgInlineSynthesis/TabSubstitutions.tsx

@@ -2,7 +2,7 @@
 
 import { ErrorData } from '@/components/info/InfoError';
 import DataLoader from '@/components/wrap/DataLoader';
-import { ConstituentaID, IRSForm, ISubstitution } from '@/models/rsform';
+import { ConstituentaID, IRSForm, ISingleSubstitution } from '@/models/rsform';
 import { prefixes } from '@/utils/constants';
 
 import PickSubstitutions from '../../components/select/PickSubstitutions';
@@ -15,8 +15,8 @@ interface TabSubstitutionsProps {
   loading?: boolean;
   error?: ErrorData;
 
-  substitutions: ISubstitution[];
-  setSubstitutions: React.Dispatch<React.SetStateAction<ISubstitution[]>>;
+  substitutions: ISingleSubstitution[];
+  setSubstitutions: React.Dispatch<React.SetStateAction<ISingleSubstitution[]>>;
 }
 
 function TabSubstitutions({

rsconcept/frontend/src/dialogs/DlgSubstituteCst.tsx

@@ -6,7 +6,8 @@ import { useMemo, useState } from 'react';
 import PickSubstitutions from '@/components/select/PickSubstitutions';
 import Modal, { ModalProps } from '@/components/ui/Modal';
 import { useRSForm } from '@/context/RSFormContext';
-import { ICstSubstituteData, ISubstitution } from '@/models/rsform';
+import { ICstSubstituteData } from '@/models/oss';
+import { ISingleSubstitution } from '@/models/rsform';
 import { prefixes } from '@/utils/constants';
 
 interface DlgSubstituteCstProps extends Pick<ModalProps, 'hideWindow'> {
@@ -16,7 +17,7 @@ interface DlgSubstituteCstProps extends Pick<ModalProps, 'hideWindow'> {
 function DlgSubstituteCst({ hideWindow, onSubstitute }: DlgSubstituteCstProps) {
   const { schema } = useRSForm();
 
-  const [substitutions, setSubstitutions] = useState<ISubstitution[]>([]);
+  const [substitutions, setSubstitutions] = useState<ISingleSubstitution[]>([]);
 
   const canSubmit = useMemo(() => substitutions.length > 0, [substitutions]);
 

rsconcept/frontend/src/models/OssLoader.ts

@@ -2,22 +2,40 @@
  * Module: OSS data loading and processing.
  */
 
-import { IOperationSchema, IOperationSchemaData } from './oss';
+import { Graph } from './Graph';
+import { IOperation, IOperationSchema, IOperationSchemaData, OperationID } from './oss';
 
 /**
  * Loads data into an {@link IOperationSchema} based on {@link IOperationSchemaData}.
  *
  */
 export class OssLoader {
-  private schema: IOperationSchemaData;
+  private oss: IOperationSchemaData;
+  private graph: Graph = new Graph();
+  private operationByID: Map<OperationID, IOperation> = new Map();
 
   constructor(input: IOperationSchemaData) {
-    this.schema = input;
+    this.oss = input;
   }
 
   produceOSS(): IOperationSchema {
-    const result = this.schema as IOperationSchema;
-    result.producedData = [1, 2, 3]; // TODO: put data processing here
+    const result = this.oss as IOperationSchema;
+    this.prepareLookups();
+    this.createGraph();
+
+    result.operationByID = this.operationByID;
+    result.graph = this.graph;
     return result;
   }
+
+  private prepareLookups() {
+    this.oss.items.forEach(operation => {
+      this.operationByID.set(operation.id, operation);
+      this.graph.addNode(operation.id);
+    });
+  }
+
+  private createGraph() {
+    this.oss.arguments.forEach(argument => this.graph.addEdge(argument.argument, argument.operation));
+  }
 }

rsconcept/frontend/src/models/miscellaneous.ts

@@ -177,3 +177,11 @@ export interface GraphFilterParams {
   allowConstant: boolean;
   allowTheorem: boolean;
 }
+
+/**
+ * Represents XY Position.
+ */
+export interface Position2D {
+  x: number;
+  y: number;
+}

rsconcept/frontend/src/models/oss.ts

@@ -2,18 +2,125 @@
  * Module: Schema of Synthesis Operations.
  */
 
-import { ILibraryItemData } from './library';
+import { Graph } from './Graph';
+import { ILibraryItemData, LibraryItemID } from './library';
+import { ConstituentaID } from './rsform';
 
 /**
- * Represents backend data for Schema of Synthesis Operations.
+ * Represents {@link IOperation} identifier type.
+ */
+export type OperationID = number;
+
+/**
+ * Represents {@link IOperation} type.
+ */
+export enum OperationType {
+  INPUT = 'input',
+  SYNTHESIS = 'synthesis'
+}
+
+/**
+ * Represents Operation.
+ */
+export interface IOperation {
+  id: OperationID;
+  operation_type: OperationType;
+  oss: LibraryItemID;
+
+  alias: string;
+  title: string;
+  comment: string;
+  position_x: number;
+  position_y: number;
+
+  result: LibraryItemID | null;
+}
+
+/**
+ * Represents {@link IOperation} position.
+ */
+export interface IOperationPosition extends Pick<IOperation, 'id' | 'position_x' | 'position_y'> {}
+
+/**
+ * Represents all {@link IOperation} positions in {@link IOperationSchema}.
+ */
+export interface IPositionsData {
+  positions: IOperationPosition[];
+}
+
+/**
+ * Represents target {@link IOperation}.
+ */
+export interface ITargetOperation extends IPositionsData {
+  target: OperationID;
+}
+
+/**
+ * Represents {@link IOperation} data, used in creation process.
+ */
+export interface IOperationCreateData extends IPositionsData {
+  item_data: Pick<
+    IOperation,
+    'alias' | 'operation_type' | 'title' | 'comment' | 'position_x' | 'position_y' | 'result'
+  >;
+  arguments: OperationID[] | undefined;
+}
+
+/**
+ * Represents {@link IOperation} Argument.
+ */
+export interface IArgument {
+  operation: OperationID;
+  argument: OperationID;
+}
+
+/**
+ * Represents data, used in merging single {@link IConstituenta}.
+ */
+export interface ICstSubstitute {
+  original: ConstituentaID;
+  substitution: ConstituentaID;
+  transfer_term: boolean;
+}
+
+/**
+ * Represents data, used in merging multiple {@link IConstituenta}.
+ */
+export interface ICstSubstituteData {
+  substitutions: ICstSubstitute[];
+}
+
+/**
+ * Represents {@link ICstSubstitute} extended data.
+ */
+export interface ICstSubstituteEx extends ICstSubstitute {
+  original_alias: string;
+  original_term: string;
+  substitution_alias: string;
+  substitution_term: string;
+}
+
+/**
+ * Represents backend data for {@link IOperationSchema}.
  */
 export interface IOperationSchemaData extends ILibraryItemData {
-  additional_data?: number[];
+  items: IOperation[];
+  arguments: IArgument[];
+  substitutions: ICstSubstituteEx[];
 }
 
 /**
- * Represents Schema of Synthesis Operations.
+ * Represents OperationSchema.
  */
 export interface IOperationSchema extends IOperationSchemaData {
-  producedData: number[]; // TODO: modify this to store calculated state on load
+  graph: Graph;
+  operationByID: Map<OperationID, IOperation>;
+}
+
+/**
+ * Represents data response when creating {@link IOperation}.
+ */
+export interface IOperationCreatedResponse {
+  new_operation: IOperation;
+  oss: IOperationSchemaData;
 }

rsconcept/frontend/src/models/ossAPI.ts

@@ -0,0 +1,18 @@
+/**
+ * Module: API for OperationSystem.
+ */
+
+import { TextMatcher } from '@/utils/utils';
+
+import { IOperation } from './oss';
+
+/**
+ * Checks if a given target {@link IOperation} matches the specified query using.
+ *
+ * @param target - The target object to be matched.
+ * @param query - The query string used for matching.
+ */
+export function matchOperation(target: IOperation, query: string): boolean {
+  const matcher = new TextMatcher(query);
+  return matcher.test(target.alias) || matcher.test(target.title);
+}

rsconcept/frontend/src/models/rsform.ts

@@ -5,10 +5,11 @@
 import { Graph } from '@/models/Graph';
 
 import { ILibraryItem, ILibraryItemVersioned, LibraryItemID } from './library';
+import { ICstSubstitute } from './oss';
 import { IArgumentInfo, ParsingStatus, ValueClass } from './rslang';
 
 /**
- * Represents Constituenta type.
+ * Represents {@link IConstituenta} type.
  */
 export enum CstType {
   BASE = 'basic',
@@ -21,7 +22,7 @@ export enum CstType {
   THEOREM = 'theorem'
 }
 
-// CstType constant for category dividers in TemplateSchemas. TODO: create separate structure for templates
+// CstType constant for category dividers in TemplateSchemas
 export const CATEGORY_CST_TYPE = CstType.THEOREM;
 
 /**
@@ -30,7 +31,7 @@ export const CATEGORY_CST_TYPE = CstType.THEOREM;
 export type Position = number;
 
 /**
- * Represents {@link Constituenta} identifier type.
+ * Represents {@link IConstituenta} identifier type.
  */
 export type ConstituentaID = number;
 
@@ -124,7 +125,7 @@ export interface IConstituentaList {
 }
 
 /**
- * Represents constituenta data, used in creation process.
+ * Represents {@link IConstituenta} data, used in creation process.
  */
 export interface ICstCreateData
   extends Pick<
@@ -135,7 +136,7 @@ export interface ICstCreateData
 }
 
 /**
- * Represents data, used in ordering constituents in a list.
+ * Represents data, used in ordering a list of {@link IConstituenta}.
  */
 export interface ICstMovetoData extends IConstituentaList {
   move_to: Position;
@@ -158,32 +159,6 @@ export interface ICstUpdateData
  */
 export interface ICstRenameData extends ITargetCst, Pick<IConstituentaMeta, 'alias' | 'cst_type'> {}
 
-/**
- * Represents data, used in merging single {@link IConstituenta}.
- */
-export interface ICstSubstitute {
-  original: ConstituentaID;
-  substitution: ConstituentaID;
-  transfer_term: boolean;
-}
-
-/**
- * Represents data, used in merging multiple {@link IConstituenta}.
- */
-export interface ICstSubstituteData {
-  substitutions: ICstSubstitute[];
-}
-
-/**
- * Represents single substitution for synthesis table.
- */
-export interface ISubstitution {
-  leftCst: IConstituenta;
-  rightCst: IConstituenta;
-  deleteRight: boolean;
-  takeLeftTerm: boolean;
-}
-
 /**
  * Represents data response when creating {@link IConstituenta}.
  */
@@ -265,6 +240,16 @@ export interface IVersionCreatedResponse {
   schema: IRSFormData;
 }
 
+/**
+ * Represents single substitution for synthesis table.
+ */
+export interface ISingleSubstitution {
+  leftCst: IConstituenta;
+  rightCst: IConstituenta;
+  deleteRight: boolean;
+  takeLeftTerm: boolean;
+}
+
 /**
  * Represents input data for inline synthesis.
  */

rsconcept/frontend/src/pages/OssPage/EditorOssGraph/EditorOssGraph.tsx

@@ -2,19 +2,22 @@
 
 import { ReactFlowProvider } from 'reactflow';
 
-import AnimateFade from '@/components/wrap/AnimateFade';
+import useLocalStorage from '@/hooks/useLocalStorage';
+import { storage } from '@/utils/constants';
 
-import { useOssEdit } from '../OssEditContext';
 import OssFlow from './OssFlow';
 
-function EditorOssGraph() {
-  const controller = useOssEdit();
+interface EditorOssGraphProps {
+  isModified: boolean;
+  setIsModified: React.Dispatch<React.SetStateAction<boolean>>;
+}
+
+function EditorOssGraph({ isModified, setIsModified }: EditorOssGraphProps) {
+  const [showGrid, setShowGrid] = useLocalStorage<boolean>(storage.ossShowGrid, false);
 
   return (
     <ReactFlowProvider>
-      <AnimateFade>
-        <OssFlow controller={controller} />
-      </AnimateFade>
+      <OssFlow isModified={isModified} setIsModified={setIsModified} showGrid={showGrid} setShowGrid={setShowGrid} />
     </ReactFlowProvider>
   );
 }

rsconcept/frontend/src/pages/OssPage/EditorOssGraph/InputNode.tsx

@@ -1,56 +1,45 @@
-import { CiSquareRemove } from 'react-icons/ci';
-import { PiPlugsConnected } from 'react-icons/pi';
 import { Handle, Position } from 'reactflow';
 
+import { IconRSForm } from '@/components/Icons';
 import MiniButton from '@/components/ui/MiniButton.tsx';
+import Overlay from '@/components/ui/Overlay';
+import { useOSS } from '@/context/OssContext';
 
 import { useOssEdit } from '../OssEditContext';
 
 interface InputNodeProps {
   id: string;
+  data: {
+    label: string;
+  };
 }
 
-function InputNode({ id }: InputNodeProps) {
+function InputNode({ id, data }: InputNodeProps) {
   const controller = useOssEdit();
-  console.log(controller.isMutable);
+  const model = useOSS();
 
-  const handleDelete = () => {
-    console.log('delete node ' + id);
-  };
+  const hasFile = !!model.schema?.operationByID.get(Number(id))?.result;
 
-  const handleClick = () => {
-    // controller.selectNode(id);
-    // controller.showSelectInput();
+  const handleOpenSchema = () => {
+    controller.openOperationSchema(Number(id));
   };
 
   return (
     <>
-      <Handle type='target' position={Position.Bottom} />
-      <div>
+      <Handle type='source' position={Position.Bottom} />
+
+      <Overlay position='top-[-0.2rem] right-[-0.2rem]' className='cc-icons'>
         <MiniButton
-          className='float-right'
-          icon={<CiSquareRemove className='icon-red' />}
-          title='Удалить'
-          onClick={handleDelete}
-          color={'red'}
+          icon={<IconRSForm className={hasFile ? 'clr-text-green' : 'clr-text-red'} size='0.75rem' />}
+          noHover
+          title='Связанная КС'
+          onClick={() => {
+            handleOpenSchema();
+          }}
+          disabled={!hasFile}
         />
-        <div>
-          Тип: <strong>Ввод</strong>
-        </div>
-        <div>
-          {/* Схема:{controller.getBind(id) === undefined ? '' : controller.getBind(id)} */}
-          <strong>
-            <MiniButton
-              className='float-right'
-              icon={<PiPlugsConnected className='icon-green' />}
-              title='Привязать схему'
-              onClick={() => {
-                handleClick();
-              }}
-            />
-          </strong>
-        </div>
-      </div>
+      </Overlay>
+      <div className='flex-grow text-center text-sm'>{data.label}</div>
     </>
   );
 }

rsconcept/frontend/src/pages/OssPage/EditorOssGraph/OperationNode.tsx

@@ -1,68 +1,47 @@
-import { CiSquareRemove } from 'react-icons/ci';
-import { IoGitNetworkSharp } from 'react-icons/io5';
-import { VscDebugStart } from 'react-icons/vsc';
 import { Handle, Position } from 'reactflow';
 
+import { IconRSForm } from '@/components/Icons';
 import MiniButton from '@/components/ui/MiniButton.tsx';
+import Overlay from '@/components/ui/Overlay';
+import { useOSS } from '@/context/OssContext';
 
 import { useOssEdit } from '../OssEditContext';
 interface OperationNodeProps {
   id: string;
+  data: {
+    label: string;
+  };
 }
 
-function OperationNode({ id }: OperationNodeProps) {
+function OperationNode({ id, data }: OperationNodeProps) {
   const controller = useOssEdit();
-  console.log(controller.isMutable);
+  const model = useOSS();
 
-  const handleDelete = () => {
-    console.log('delete node ' + id);
-    // onDelete(id);
-  };
+  const hasFile = !!model.schema?.operationByID.get(Number(id))?.result;
 
-  const handleEditOperation = () => {
-    console.log('edit operation ' + id);
-    //controller.selectNode(id);
-    //controller.showSynthesis();
-  };
-
-  const handleRunOperation = () => {
-    console.log('run operation');
-    // controller.singleSynthesis(id);
+  const handleOpenSchema = () => {
+    controller.openOperationSchema(Number(id));
   };
 
   return (
     <>
-      <Handle type='target' position={Position.Bottom} />
-      <div>
-        <MiniButton
-          className='float-right'
-          icon={<CiSquareRemove className='icon-red' />}
-          title='Удалить'
-          onClick={handleDelete}
-          color={'red'}
-        />
-        <div>
-          Тип: <strong>Отождествление</strong>
-        </div>
-        <div>
-          Схема: <strong></strong>
-          <MiniButton
-            className='float-right'
-            icon={<VscDebugStart className='icon-green' />}
-            title='Синтез'
-            onClick={() => handleRunOperation()}
-          />
-          <MiniButton
-            className='float-right'
-            icon={<IoGitNetworkSharp className='icon-green' />}
-            title='Отождествления'
-            onClick={() => handleEditOperation()}
-          />
-        </div>
-      </div>
+      <Handle type='source' position={Position.Bottom} />
 
-      <Handle type='source' position={Position.Top} id='a' style={{ left: 50 }} />
-      <Handle type='source' position={Position.Top} id='b' style={{ right: 50, left: 'auto' }} />
+      <Overlay position='top-[-0.2rem] right-[-0.2rem]' className='cc-icons'>
+        <MiniButton
+          icon={<IconRSForm className={hasFile ? 'clr-text-green' : 'clr-text-red'} size='0.75rem' />}
+          noHover
+          title='Связанная КС'
+          onClick={() => {
+            handleOpenSchema();
+          }}
+          disabled={!hasFile}
+        />
+      </Overlay>
+      <div className='flex-grow text-center text-sm'>{data.label}</div>
+
+      <Handle type='target' position={Position.Top} id='left' style={{ left: 40 }} />
+      <Handle type='target' position={Position.Top} id='right' style={{ right: 40, left: 'auto' }} />
     </>
   );
 }

rsconcept/frontend/src/pages/OssPage/EditorOssGraph/OssFlow.tsx

@@ -1,49 +1,248 @@
 'use client';
 
-import { useMemo } from 'react';
-import { NodeTypes, ProOptions, ReactFlow } from 'reactflow';
+import { toSvg } from 'html-to-image';
+import { useCallback, useLayoutEffect, useMemo, useState } from 'react';
+import { toast } from 'react-toastify';
+import {
+  Background,
+  getNodesBounds,
+  getViewportForBounds,
+  Node,
+  NodeChange,
+  NodeTypes,
+  ProOptions,
+  ReactFlow,
+  useEdgesState,
+  useNodesState,
+  useOnSelectionChange,
+  useReactFlow
+} from 'reactflow';
 
+import Overlay from '@/components/ui/Overlay';
+import AnimateFade from '@/components/wrap/AnimateFade';
 import { useConceptOptions } from '@/context/ConceptOptionsContext';
 import { useOSS } from '@/context/OssContext';
+import { PARAMETER } from '@/utils/constants';
+import { errors } from '@/utils/labels';
 
-import { IOssEditContext } from '../OssEditContext';
+import { useOssEdit } from '../OssEditContext';
 import InputNode from './InputNode';
 import OperationNode from './OperationNode';
-
-const OssNodeTypes: NodeTypes = {
-  synthesis: OperationNode,
-  input: InputNode
-};
+import ToolbarOssGraph from './ToolbarOssGraph';
 
 interface OssFlowProps {
-  controller: IOssEditContext;
+  isModified: boolean;
+  setIsModified: React.Dispatch<React.SetStateAction<boolean>>;
+  showGrid: boolean;
+  setShowGrid: React.Dispatch<React.SetStateAction<boolean>>;
 }
 
-function OssFlow({ controller }: OssFlowProps) {
-  const { calculateHeight } = useConceptOptions();
+function OssFlow({ isModified, setIsModified, showGrid, setShowGrid }: OssFlowProps) {
+  const { calculateHeight, colors } = useConceptOptions();
   const model = useOSS();
+  const controller = useOssEdit();
+  const flow = useReactFlow();
 
-  console.log(model.loading);
-  console.log(controller.isMutable);
+  const [nodes, setNodes, onNodesChange] = useNodesState([]);
+  const [edges, setEdges, onEdgesChange] = useEdgesState([]);
+  const [toggleReset, setToggleReset] = useState(false);
 
-  const initialNodes = [
-    { id: '1', position: { x: 0, y: 0 }, data: { label: '1' }, type: 'input' },
-    { id: '2', position: { x: 0, y: 100 }, data: { label: '2' }, type: 'synthesis' }
-  ];
-  const initialEdges = [{ id: 'e1-2', source: '1', target: '2' }];
+  const onSelectionChange = useCallback(
+    ({ nodes }: { nodes: Node[] }) => {
+      controller.setSelected(nodes.map(node => Number(node.id)));
+      console.log(nodes);
+    },
+    [controller]
+  );
 
-  const proOptions: ProOptions = { hideAttribution: true };
+  useOnSelectionChange({
+    onChange: onSelectionChange
+  });
 
-  const canvasWidth = useMemo(() => {
-    return 'calc(100vw - 1rem)';
+  useLayoutEffect(() => {
+    if (!model.schema) {
+      setNodes([]);
+      setEdges([]);
+    } else {
+      setNodes(
+        model.schema.items.map(operation => ({
+          id: String(operation.id),
+          data: { label: operation.alias },
+          position: { x: operation.position_x, y: operation.position_y },
+          type: operation.operation_type.toString()
+        }))
+      );
+      setEdges(
+        model.schema.arguments.map((argument, index) => ({
+          id: String(index),
+          source: String(argument.argument),
+          target: String(argument.operation),
+          targetHandle:
+            model.schema!.operationByID.get(argument.argument)!.position_x >
+            model.schema!.operationByID.get(argument.operation)!.position_x
+              ? 'right'
+              : 'left'
+        }))
+      );
+    }
+    setTimeout(() => {
+      setIsModified(false);
+    }, PARAMETER.graphRefreshDelay);
+  }, [model.schema, setNodes, setEdges, setIsModified, toggleReset]);
+
+  const getPositions = useCallback(
+    () =>
+      nodes.map(node => ({
+        id: Number(node.id),
+        position_x: node.position.x,
+        position_y: node.position.y
+      })),
+    [nodes]
+  );
+
+  const handleNodesChange = useCallback(
+    (changes: NodeChange[]) => {
+      if (changes.some(change => change.type === 'position' && change.position)) {
+        setIsModified(true);
+      }
+      onNodesChange(changes);
+    },
+    [onNodesChange, setIsModified]
+  );
+
+  const handleSavePositions = useCallback(() => {
+    controller.savePositions(getPositions(), () => setIsModified(false));
+  }, [controller, getPositions, setIsModified]);
+
+  const handleCreateOperation = useCallback(() => {
+    const center = flow.project({ x: window.innerWidth / 2, y: window.innerHeight / 2 });
+    console.log(center);
+    controller.promptCreateOperation(center.x, center.y, getPositions());
+  }, [controller, getPositions, flow]);
+
+  const handleDeleteOperation = useCallback(() => {
+    if (controller.selected.length !== 1) {
+      return;
+    }
+    controller.deleteOperation(controller.selected[0], getPositions());
+  }, [controller, getPositions]);
+
+  const handleFitView = useCallback(() => {
+    flow.fitView({ duration: PARAMETER.zoomDuration });
+  }, [flow]);
+
+  const handleResetPositions = useCallback(() => {
+    setToggleReset(prev => !prev);
   }, []);
 
+  const handleSaveImage = useCallback(() => {
+    const canvas: HTMLElement | null = document.querySelector('.react-flow__viewport');
+    if (canvas === null) {
+      toast.error(errors.imageFailed);
+      return;
+    }
+
+    const imageWidth = PARAMETER.ossImageWidth;
+    const imageHeight = PARAMETER.ossImageHeight;
+    const nodesBounds = getNodesBounds(nodes);
+    const viewport = getViewportForBounds(nodesBounds, imageWidth, imageHeight, 0.5, 2);
+    toSvg(canvas, {
+      backgroundColor: colors.bgDefault,
+      width: imageWidth,
+      height: imageHeight,
+      style: {
+        width: String(imageWidth),
+        height: String(imageHeight),
+        transform: `translate(${viewport.x}px, ${viewport.y}px) scale(${viewport.zoom})`
+      }
+    })
+      .then(dataURL => {
+        const a = document.createElement('a');
+        a.setAttribute('download', 'reactflow.svg');
+        a.setAttribute('href', dataURL);
+        a.click();
+      })
+      .catch(error => {
+        console.error(error);
+        toast.error(errors.imageFailed);
+      });
+  }, [colors, nodes]);
+
+  function handleKeyDown(event: React.KeyboardEvent<HTMLDivElement>) {
+    // Hotkeys implementation
+    if (controller.isProcessing) {
+      return;
+    }
+    if (!controller.isMutable) {
+      return;
+    }
+    if ((event.ctrlKey || event.metaKey) && event.key === 's') {
+      event.preventDefault();
+      event.stopPropagation();
+      handleSavePositions();
+      return;
+    }
+    if (event.key === 'Delete') {
+      event.preventDefault();
+      event.stopPropagation();
+      handleDeleteOperation();
+      return;
+    }
+  }
+
+  const proOptions: ProOptions = useMemo(() => ({ hideAttribution: true }), []);
+  const canvasWidth = useMemo(() => 'calc(100vw - 1rem)', []);
   const canvasHeight = useMemo(() => calculateHeight('1.75rem + 4px'), [calculateHeight]);
 
+  const OssNodeTypes: NodeTypes = useMemo(
+    () => ({
+      synthesis: OperationNode,
+      input: InputNode
+    }),
+    []
+  );
+
+  const graph = useMemo(
+    () => (
+      <ReactFlow
+        nodes={nodes}
+        edges={edges}
+        onNodesChange={handleNodesChange}
+        onEdgesChange={onEdgesChange}
+        fitView
+        proOptions={proOptions}
+        nodeTypes={OssNodeTypes}
+        maxZoom={2}
+        minZoom={0.75}
+        nodesConnectable={false}
+        snapToGrid={true}
+        snapGrid={[10, 10]}
+      >
+        {showGrid ? <Background gap={10} /> : null}
+      </ReactFlow>
+    ),
+    [nodes, edges, proOptions, handleNodesChange, onEdgesChange, OssNodeTypes, showGrid]
+  );
+
   return (
-    <div className='relative' style={{ height: canvasHeight, width: canvasWidth }}>
-      <ReactFlow nodes={initialNodes} edges={initialEdges} fitView proOptions={proOptions} nodeTypes={OssNodeTypes} />
-    </div>
+    <AnimateFade tabIndex={-1} onKeyDown={handleKeyDown}>
+      <Overlay position='top-0 pt-1 right-1/2 translate-x-1/2' className='rounded-b-2xl cc-blur'>
+        <ToolbarOssGraph
+          isModified={isModified}
+          showGrid={showGrid}
+          onFitView={handleFitView}
+          onCreate={handleCreateOperation}
+          onDelete={handleDeleteOperation}
+          onResetPositions={handleResetPositions}
+          onSavePositions={handleSavePositions}
+          onSaveImage={handleSaveImage}
+          toggleShowGrid={() => setShowGrid(prev => !prev)}
+        />
+      </Overlay>
+      <div className='relative' style={{ height: canvasHeight, width: canvasWidth }}>
+        {graph}
+      </div>
+    </AnimateFade>
   );
 }
 

rsconcept/frontend/src/pages/OssPage/EditorOssGraph/ToolbarOssGraph.tsx

@@ -0,0 +1,101 @@
+import clsx from 'clsx';
+
+import { IconDestroy, IconFitImage, IconGrid, IconImage, IconNewItem, IconReset, IconSave } from '@/components/Icons';
+import BadgeHelp from '@/components/info/BadgeHelp';
+import MiniButton from '@/components/ui/MiniButton';
+import { HelpTopic } from '@/models/miscellaneous';
+import { PARAMETER } from '@/utils/constants';
+import { prepareTooltip } from '@/utils/labels';
+
+import { useOssEdit } from '../OssEditContext';
+
+interface ToolbarOssGraphProps {
+  isModified: boolean;
+  showGrid: boolean;
+  onCreate: () => void;
+  onDelete: () => void;
+  onFitView: () => void;
+  onSaveImage: () => void;
+  onSavePositions: () => void;
+  onResetPositions: () => void;
+  toggleShowGrid: () => void;
+}
+
+function ToolbarOssGraph({
+  isModified,
+  showGrid,
+  onCreate,
+  onDelete,
+  onFitView,
+  onSaveImage,
+  onSavePositions,
+  onResetPositions,
+  toggleShowGrid
+}: ToolbarOssGraphProps) {
+  const controller = useOssEdit();
+
+  return (
+    <div className='cc-icons'>
+      {controller.isMutable ? (
+        <MiniButton
+          titleHtml={prepareTooltip('Сохранить изменения', 'Ctrl + S')}
+          icon={<IconSave size='1.25rem' className='icon-primary' />}
+          disabled={controller.isProcessing || !isModified}
+          onClick={onSavePositions}
+        />
+      ) : null}
+      {controller.isMutable ? (
+        <MiniButton
+          title='Сбросить изменения'
+          icon={<IconReset size='1.25rem' className='icon-primary' />}
+          disabled={!isModified}
+          onClick={onResetPositions}
+        />
+      ) : null}
+      <MiniButton
+        icon={<IconFitImage size='1.25rem' className='icon-primary' />}
+        title='Сбросить вид'
+        onClick={onFitView}
+      />
+      <MiniButton
+        title={showGrid ? 'Скрыть сетку' : 'Отобразить сетку'}
+        icon={
+          showGrid ? (
+            <IconGrid size='1.25rem' className='icon-green' />
+          ) : (
+            <IconGrid size='1.25rem' className='icon-primary' />
+          )
+        }
+        onClick={toggleShowGrid}
+      />
+      {controller.isMutable ? (
+        <MiniButton
+          title='Новая операция'
+          icon={<IconNewItem size='1.25rem' className='icon-green' />}
+          disabled={controller.isProcessing}
+          onClick={onCreate}
+        />
+      ) : null}
+      {controller.isMutable ? (
+        <MiniButton
+          title='Удалить выбранную'
+          icon={<IconDestroy size='1.25rem' className='icon-red' />}
+          disabled={controller.selected.length !== 1 || controller.isProcessing}
+          onClick={onDelete}
+        />
+      ) : null}
+      <MiniButton
+        icon={<IconImage size='1.25rem' className='icon-primary' />}
+        title='Сохранить изображение'
+        onClick={onSaveImage}
+      />
+      <BadgeHelp
+        topic={HelpTopic.UI_OSS_GRAPH}
+        className={clsx(PARAMETER.TOOLTIP_WIDTH, 'sm:max-w-[40rem]')}
+        offset={4}
+      />
+    </div>
+  );
+}
+
+export default ToolbarOssGraph;

rsconcept/frontend/src/pages/OssPage/OssEditContext.tsx

@@ -4,19 +4,24 @@ import { AnimatePresence } from 'framer-motion';
 import { createContext, useCallback, useContext, useLayoutEffect, useMemo, useState } from 'react';
 import { toast } from 'react-toastify';
 
+import { urls } from '@/app/urls';
 import { useAccessMode } from '@/context/AccessModeContext';
 import { useAuth } from '@/context/AuthContext';
 import { useConceptOptions } from '@/context/ConceptOptionsContext';
+import { useConceptNavigation } from '@/context/NavigationContext';
 import { useOSS } from '@/context/OssContext';
 import DlgChangeLocation from '@/dialogs/DlgChangeLocation';
+import DlgCreateOperation from '@/dialogs/DlgCreateOperation';
 import DlgEditEditors from '@/dialogs/DlgEditEditors';
 import { AccessPolicy } from '@/models/library';
-import { IOperationSchema } from '@/models/oss';
+import { Position2D } from '@/models/miscellaneous';
+import { IOperationCreateData, IOperationPosition, IOperationSchema, OperationID } from '@/models/oss';
 import { UserID, UserLevel } from '@/models/user';
 import { information } from '@/utils/labels';
 
 export interface IOssEditContext {
   schema?: IOperationSchema;
+  selected: OperationID[];
 
   isMutable: boolean;
   isProcessing: boolean;
@@ -27,7 +32,15 @@ export interface IOssEditContext {
   promptLocation: () => void;
   toggleSubscribe: () => void;
 
+  setSelected: React.Dispatch<React.SetStateAction<OperationID[]>>;
+
   share: () => void;
+
+  openOperationSchema: (target: OperationID) => void;
+
+  savePositions: (positions: IOperationPosition[], callback?: () => void) => void;
+  promptCreateOperation: (x: number, y: number, positions: IOperationPosition[]) => void;
+  deleteOperation: (target: OperationID, positions: IOperationPosition[]) => void;
 }
 
 const OssEditContext = createContext<IOssEditContext | null>(null);
@@ -41,11 +54,13 @@ export const useOssEdit = () => {
 
 interface OssEditStateProps {
   // isModified: boolean;
+  selected: OperationID[];
+  setSelected: React.Dispatch<React.SetStateAction<OperationID[]>>;
   children: React.ReactNode;
 }
 
-export const OssEditState = ({ children }: OssEditStateProps) => {
-  // const router = useConceptNavigation();
+export const OssEditState = ({ selected, setSelected, children }: OssEditStateProps) => {
+  const router = useConceptNavigation();
   const { user } = useAuth();
   const { adminMode } = useConceptOptions();
   const { accessLevel, setAccessLevel } = useAccessMode();
@@ -59,6 +74,10 @@ export const OssEditState = ({ children }: OssEditStateProps) => {
   const [showEditEditors, setShowEditEditors] = useState(false);
   const [showEditLocation, setShowEditLocation] = useState(false);
 
+  const [showCreateOperation, setShowCreateOperation] = useState(false);
+  const [insertPosition, setInsertPosition] = useState<Position2D>({ x: 0, y: 0 });
+  const [positions, setPositions] = useState<IOperationPosition[]>([]);
+
   useLayoutEffect(
     () =>
       setAccessLevel(prev => {
@@ -136,10 +155,62 @@ export const OssEditState = ({ children }: OssEditStateProps) => {
     [model]
   );
 
+  const openOperationSchema = useCallback(
+    (target: OperationID) => {
+      const node = model.schema?.operationByID.get(target);
+      if (!node || !node.result) {
+        return;
+      }
+      router.push(urls.schema(node.result));
+    },
+    [router, model]
+  );
+
+  const savePositions = useCallback(
+    (positions: IOperationPosition[], callback?: () => void) => {
+      model.savePositions({ positions: positions }, () => {
+        positions.forEach(item => {
+          const operation = model.schema?.operationByID.get(item.id);
+          if (operation) {
+            operation.position_x = item.position_x;
+            operation.position_y = item.position_y;
+          }
+        });
+        toast.success(information.changesSaved);
+        if (callback) callback();
+      });
+    },
+    [model]
+  );
+
+  const promptCreateOperation = useCallback((x: number, y: number, positions: IOperationPosition[]) => {
+    setInsertPosition({ x: x, y: y });
+    setPositions(positions);
+    setShowCreateOperation(true);
+  }, []);
+
+  const handleCreateOperation = useCallback(
+    (data: IOperationCreateData) => {
+      model.createOperation(data, operation => toast.success(information.newOperation(operation.alias)));
+    },
+    [model]
+  );
+
+  const deleteOperation = useCallback(
+    (target: OperationID, positions: IOperationPosition[]) => {
+      model.deleteOperation({ target: target, positions: positions }, () =>
+        toast.success(information.operationDestroyed)
+      );
+    },
+    [model]
+  );
+
   return (
     <OssEditContext.Provider
       value={{
         schema: model.schema,
+        selected,
+
         isMutable,
         isProcessing: model.processing,
 
@@ -149,7 +220,13 @@ export const OssEditState = ({ children }: OssEditStateProps) => {
         promptEditors,
         promptLocation,
 
-        share
+        share,
+        setSelected,
+
+        openOperationSchema,
+        savePositions,
+        promptCreateOperation,
+        deleteOperation
       }}
     >
       {model.schema ? (
@@ -168,6 +245,15 @@ export const OssEditState = ({ children }: OssEditStateProps) => {
               onChangeLocation={handleSetLocation}
             />
           ) : null}
+          {showCreateOperation ? (
+            <DlgCreateOperation
+              hideWindow={() => setShowCreateOperation(false)}
+              oss={model.schema}
+              positions={positions}
+              insertPosition={insertPosition}
+              onCreate={handleCreateOperation}
+            />
+          ) : null}
         </AnimatePresence>
       ) : null}
 

rsconcept/frontend/src/pages/OssPage/OssTabs.tsx

@@ -17,6 +17,7 @@ import { useLibrary } from '@/context/LibraryContext';
 import { useBlockNavigation, useConceptNavigation } from '@/context/NavigationContext';
 import { useOSS } from '@/context/OssContext';
 import useQueryStrings from '@/hooks/useQueryStrings';
+import { OperationID } from '@/models/oss';
 import { information, prompts } from '@/utils/labels';
 
 import EditorRSForm from './EditorOssCard';
@@ -39,6 +40,7 @@ function OssTabs() {
   const { destroyItem } = useLibrary();
 
   const [isModified, setIsModified] = useState(false);
+  const [selected, setSelected] = useState<OperationID[]>([]);
   useBlockNavigation(isModified);
 
   useLayoutEffect(() => {
@@ -112,14 +114,14 @@ function OssTabs() {
   const graphPanel = useMemo(
     () => (
       <TabPanel>
-        <EditorTermGraph />
+        <EditorTermGraph isModified={isModified} setIsModified={setIsModified} />
       </TabPanel>
     ),
-    []
+    [isModified]
   );
 
   return (
-    <OssEditState>
+    <OssEditState selected={selected} setSelected={setSelected}>
       {loading ? <Loader /> : null}
       {errorLoading ? <ProcessError error={errorLoading} /> : null}
       {schema && !loading ? (

rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/EditorTermGraph.tsx

@@ -311,7 +311,7 @@ function EditorTermGraph({ onOpenEdit }: EditorTermGraphProps) {
           showParamsDialog={() => setShowParamsDialog(true)}
           onCreate={handleCreateCst}
           onDelete={handleDeleteCst}
-          onResetViewpoint={() => setToggleResetView(prev => !prev)}
+          onFitView={() => setToggleResetView(prev => !prev)}
           onSaveImage={handleSaveImage}
           toggleOrbit={() => setOrbit(prev => !prev)}
           toggleFoldDerived={handleFoldDerived}

rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/ToolbarTermGraph.tsx

@@ -29,7 +29,7 @@ interface ToolbarTermGraphProps {
   showParamsDialog: () => void;
   onCreate: () => void;
   onDelete: () => void;
-  onResetViewpoint: () => void;
+  onFitView: () => void;
   onSaveImage: () => void;
 
   toggleFoldDerived: () => void;
@@ -48,7 +48,7 @@ function ToolbarTermGraph({
   showParamsDialog,
   onCreate,
   onDelete,
-  onResetViewpoint,
+  onFitView,
   onSaveImage
 }: ToolbarTermGraphProps) {
   const controller = useRSEdit();
@@ -63,7 +63,7 @@ function ToolbarTermGraph({
       <MiniButton
         icon={<IconFitImage size='1.25rem' className='icon-primary' />}
         title='Граф целиком'
-        onClick={onResetViewpoint}
+        onClick={onFitView}
       />
       <MiniButton
         title={!noText ? 'Скрыть текст' : 'Отобразить текст'}

rsconcept/frontend/src/pages/RSFormPage/RSEditContext.tsx

@@ -25,6 +25,7 @@ import DlgRenameCst from '@/dialogs/DlgRenameCst';
 import DlgSubstituteCst from '@/dialogs/DlgSubstituteCst';
 import DlgUploadRSForm from '@/dialogs/DlgUploadRSForm';
 import { AccessPolicy, IVersionData, LocationHead, VersionID } from '@/models/library';
+import { ICstSubstituteData } from '@/models/oss';
 import {
   ConstituentaID,
   CstType,
@@ -33,7 +34,6 @@ import {
   ICstCreateData,
   ICstMovetoData,
   ICstRenameData,
-  ICstSubstituteData,
   ICstUpdateData,
   IInlineSynthesisData,
   IRSForm,

rsconcept/frontend/src/styling/overrides.css

@@ -34,21 +34,63 @@
   }
 }
 
-.Flow {
-  flex-grow: 1;
-  font-size: 12px;
+.react-flow__handle {
+  cursor: default !important;
+
+  border-color: var(--cl-bg-40);
+  background-color: var(--cl-bg-120);
+
+  .selected & {
+    border-color: var(--cd-bg-40);
+  }
+
+  .dark & {
+    border-color: var(--cd-bg-40);
+    background-color: var(--cd-bg-120);
+
+    .selected & {
+      border-color: var(--cl-bg-40);
+    }
+  }
 }
 
-.react-flow__node-input {
-  border: 1px solid #555;
-  padding: 10px;
+.react-flow__pane {
+  cursor: default;
+}
+
+:is(.react-flow__node-input, .react-flow__node-synthesis) {
+  cursor: pointer;
+
+  border: 1px solid;
+  padding: 2px;
   width: 150px;
-  border-radius: 5px;
-}
 
-.react-flow__node-synthesis {
-  border: 1px solid #555;
-  padding: 10px;
-  width: 250px;
   border-radius: 5px;
+  background-color: var(--cl-bg-120);
+
+  color: var(--cl-fg-100);
+  border-color: var(--cl-bg-40);
+  background-color: var(--cl-bg-120);
+
+  &:hover:not(.selected) {
+    box-shadow: 0 0 0 2px var(--cl-prim-bg-80) !important;
+  }
+
+  &.selected {
+    border-color: var(--cd-bg-40);
+  }
+
+  .dark & {
+    color: var(--cd-fg-100);
+    border-color: var(--cd-bg-40);
+    background-color: var(--cd-bg-120);
+
+    &:hover:not(.selected) {
+      box-shadow: 0 0 0 3px var(--cd-prim-bg-80) !important;
+    }
+
+    &.selected {
+      border-color: var(--cl-bg-40);
+    }
+  }
 }

rsconcept/frontend/src/utils/constants.ts

@@ -11,6 +11,10 @@ export const PARAMETER = {
   refreshTimeout: 100, // milliseconds delay for post-refresh actions
   minimalTimeout: 10, // milliseconds delay for fast updates
 
+  zoomDuration: 500, // milliseconds animation duration
+  ossImageWidth: 1280, // pixels - size of OSS image
+  ossImageHeight: 960, // pixels - size of OSS image
+
   graphHoverXLimit: 0.4, // ratio to clientWidth used to determine which side of screen popup should be
   graphHoverYLimit: 0.6, // ratio to clientHeight used to determine which side of screen popup should be
   graphPopupDelay: 500, // milliseconds delay for graph popup selections
@@ -108,6 +112,8 @@ export const storage = {
   rsgraphSizing: 'rsgraph.sizing',
   rsgraphFoldHidden: 'rsgraph.fold_hidden',
 
+  ossShowGrid: 'oss.show_grid',
+
   cstFilterMatch: 'cst.filter.match',
   cstFilterGraph: 'cst.filter.graph'
 };

rsconcept/frontend/src/utils/labels.ts

@@ -10,6 +10,7 @@ import { GramData, Grammeme, ReferenceType } from '@/models/language';
 import { AccessPolicy, LibraryItemType, LocationHead } from '@/models/library';
 import { validateLocation } from '@/models/libraryAPI';
 import { CstMatchMode, DependencyMode, GraphColoring, GraphSizing, HelpTopic } from '@/models/miscellaneous';
+import { OperationType } from '@/models/oss';
 import { CstClass, CstType, ExpressionStatus, IConstituenta, IRSForm } from '@/models/rsform';
 import {
   IArgumentInfo,
@@ -889,6 +890,28 @@ export function describeLibraryItemType(itemType: LibraryItemType): string {
   }
 }
 
+/**
+ * Retrieves label for {@link OperationType}.
+ */
+export function labelOperationType(itemType: OperationType): string {
+  // prettier-ignore
+  switch (itemType) {
+    case OperationType.INPUT:     return 'Загрузка';
+    case OperationType.SYNTHESIS: return 'Синтез';
+  }
+}
+
+/**
+ * Retrieves description for {@link OperationType}.
+ */
+export function describeOperationType(itemType: OperationType): string {
+  // prettier-ignore
+  switch (itemType) {
+    case OperationType.INPUT:     return 'Загрузка концептуальной схемы в ОСС';
+    case OperationType.SYNTHESIS: return 'Синтез концептуальных схем';
+  }
+}
+
 /**
  * UI info descriptors.
  */
@@ -909,12 +932,14 @@ export const information = {
 
   addedConstituents: (count: number) => `Добавлены конституенты: ${count}`,
   newLibraryItem: 'Схема успешно создана',
-  newConstituent: (alias: string) => `Конституента добавлена: ${alias}`,
   newVersion: (version: string) => `Версия создана: ${version}`,
+  newConstituent: (alias: string) => `Конституента добавлена: ${alias}`,
+  newOperation: (alias: string) => `Операция добавлена: ${alias}`,
   renameComplete: (oldAlias: string, newAlias: string) => `Переименование: ${oldAlias} -> ${newAlias}`,
 
   versionDestroyed: 'Версия удалена',
   itemDestroyed: 'Схема удалена',
+  operationDestroyed: 'Операция удалена',
   constituentsDestroyed: (aliases: string) => `Конституенты удалены: ${aliases}`
 };
 
@@ -923,7 +948,8 @@ export const information = {
  */
 export const errors = {
   astFailed: 'Невозможно построить дерево разбора',
-  passwordsMismatch: 'Пароли не совпадают'
+  passwordsMismatch: 'Пароли не совпадают',
+  imageFailed: 'Ошибка при создании изображения'
 };
 
 /**

scripts/dev/GraphDB.ps1

@@ -0,0 +1,16 @@
+# Generate DOT file for DB structure
+$backend = Resolve-Path -Path "${PSScriptRoot}\..\..\rsconcept\backend"
+
+function GenerateDOT() {
+  Set-Location $backend
+
+  $python = "${backend}\venv\Scripts\python.exe"
+  $djangoSrc = "${backend}\manage.py"
+
+  & $python $djangoSrc graph_models -o visualizeDB.dot
+
+  notepad.exe "${backend}\visualizeDB.dot"
+  Start-Process "https://dreampuf.github.io/GraphvizOnline"
+}
+
+GenerateDOT

scripts/dev/RunCoverage.ps1

@@ -2,7 +2,7 @@
 
 $backend = Resolve-Path -Path "$PSScriptRoot\..\..\rsconcept\backend"
 
-function RunLinters() {
+function RunCoverage() {
   BackendCoverage
 }
 
@@ -20,4 +20,4 @@ function BackendCoverage() {
   Start-Process "$backend\htmlcov\index.html"
 }
 
-RunLinters
+RunCoverage