mirror of
https://github.com/IRBorisov/ConceptPortal.git
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112 lines
3.7 KiB
Python
112 lines
3.7 KiB
Python
''' Serializers for persistent data manipulation. '''
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from typing import cast
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from django.db.models import F
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from rest_framework import serializers
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from rest_framework.serializers import PrimaryKeyRelatedField as PKField
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from apps.rsform.models import LibraryItem
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from apps.rsform.serializers import LibraryItemDetailsSerializer
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from shared import messages as msg
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from ..models import Argument, Operation, OperationSchema, OperationType
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from .basics import OperationPositionSerializer, SubstitutionExSerializer
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class OperationSerializer(serializers.ModelSerializer):
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''' Serializer: Operation data. '''
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class Meta:
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''' serializer metadata. '''
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model = Operation
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fields = '__all__'
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read_only_fields = ('id', 'oss')
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class ArgumentSerializer(serializers.ModelSerializer):
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''' Serializer: Operation data. '''
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class Meta:
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''' serializer metadata. '''
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model = Argument
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fields = ('operation', 'argument')
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class OperationCreateSerializer(serializers.Serializer):
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''' Serializer: Operation creation. '''
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class OperationData(serializers.ModelSerializer):
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''' Serializer: Operation creation data. '''
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alias = serializers.CharField()
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operation_type = serializers.ChoiceField(OperationType.choices)
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class Meta:
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''' serializer metadata. '''
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model = Operation
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fields = \
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'alias', 'operation_type', 'title', \
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'comment', 'result', 'position_x', 'position_y'
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item_data = OperationData()
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arguments = PKField(many=True, queryset=Operation.objects.all(), required=False)
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positions = serializers.ListField(
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child=OperationPositionSerializer(),
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default=[]
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)
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class OperationDeleteSerializer(serializers.Serializer):
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''' Serializer: Delete operation. '''
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target = PKField(many=False, queryset=Operation.objects.all())
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positions = serializers.ListField(
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child=OperationPositionSerializer(),
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default=[]
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)
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def validate(self, attrs):
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oss = cast(LibraryItem, self.context['oss'])
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operation = cast(Operation, attrs['target'])
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if oss and operation.oss != oss:
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raise serializers.ValidationError({
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f'{operation.id}': msg.operationNotOwned(oss.title)
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})
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self.instance = operation
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return attrs
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class OperationSchemaSerializer(serializers.ModelSerializer):
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''' Serializer: Detailed data for OSS. '''
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items = serializers.ListField(
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child=OperationSerializer()
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)
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arguments = serializers.ListField(
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child=ArgumentSerializer()
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)
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substitutions = serializers.ListField(
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child=SubstitutionExSerializer()
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)
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class Meta:
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''' serializer metadata. '''
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model = OperationSchema
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fields = '__all__'
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def to_representation(self, instance: OperationSchema):
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result = LibraryItemDetailsSerializer(instance).data
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result['items'] = []
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for operation in instance.operations():
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result['items'].append(OperationSerializer(operation).data)
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result['arguments'] = []
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for argument in instance.arguments():
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result['arguments'].append(ArgumentSerializer(argument).data)
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result['substitutions'] = []
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for substitution in instance.substitutions().values(
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'operation',
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'original',
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'substitution',
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'transfer_term',
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original_alias=F('original__alias'),
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original_term=F('original__term_resolved'),
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substitution_alias=F('substitution__alias'),
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substitution_term=F('substitution__term_resolved'),
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):
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result['substitutions'].append(substitution)
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return result
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