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29 lines
934 B
Python
29 lines
934 B
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 Association(Model):
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''' Association links nominal constituent to its content.'''
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container = ForeignKey(
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verbose_name='Составная конституента',
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to='rsform.Constituenta',
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on_delete=CASCADE,
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related_name='as_container'
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)
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associate = ForeignKey(
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verbose_name='Ассоциированная конституента',
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to='rsform.Constituenta',
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on_delete=CASCADE,
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related_name='as_associate'
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)
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class Meta:
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''' Model metadata. '''
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verbose_name = 'Ассоциация конституент'
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verbose_name_plural = 'Ассоциации конституент'
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unique_together = [['container', 'associate']]
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def __str__(self) -> str:
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return f'{self.container} -> {self.associate}'
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