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django unique together

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Hayatullah Farahi answered on March 30, 2021 Popularity 10/10 Helpfulness 6/10

answer django unique together

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django unique together

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# models.py in the model class add:
class Meta:
	unique_together = ('date', 'size')

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Contributed on Jun 27 2022

Hayatullah Farahi

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# Preferred alternative to unique_together, Django 2.2+
# Use the 'constraints' var in class Meta 
class Volume(models.Model):
    id = models.AutoField(primary_key=True)
    journal_id = models.ForeignKey(Journals, db_column='jid', null=True, verbose_name="Journal")
    volume_number = models.CharField('Volume Number', max_length=100)
    comments = models.TextField('Comments', max_length=4000, blank=True)

    class Meta:
        constraints = [
            models.UniqueConstraint(fields=['journal_id', 'volume_number'], name='name of constraint')
        ]

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Source: stackoverflow.com

Tags: django dj

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Contributed on Aug 13 2021

Bloody Batfish

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unique_together what is used of it in django

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unique_together = [['driver', 'restaurant']]

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Source: docs.djangoproject.com

Tags: django dj

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Contributed on Mar 30 2021

Evil Eagle

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django unique together

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