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33 lines
1.0 KiB
Python
33 lines
1.0 KiB
Python
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''' Models: Synthesis Inheritance. '''
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from django.db.models import CASCADE, ForeignKey, Model
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class Inheritance(Model):
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''' Inheritance links parent and child constituents in synthesis operation.'''
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operation: ForeignKey = ForeignKey(
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verbose_name='Операция',
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to='oss.Operation',
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on_delete=CASCADE
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)
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parent: ForeignKey = ForeignKey(
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verbose_name='Исходная конституента',
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to='rsform.Constituenta',
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on_delete=CASCADE,
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related_name='as_parent'
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)
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child: ForeignKey = ForeignKey(
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verbose_name='Наследованная конституента',
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to='rsform.Constituenta',
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on_delete=CASCADE,
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related_name='as_child'
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)
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class Meta:
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''' Model metadata. '''
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verbose_name = 'Наследование синтеза'
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verbose_name_plural = 'Отношение наследования конституент'
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def __str__(self) -> str:
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return f'{self.parent} -> {self.child}'
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