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7414704e88
Special thanks to Hannes Ljungberg for finding multiple implementation gaps. Thanks also to Simon Charette, Adam Johnson, and Mariusz Felisiak for reviews.
58 lines
1.3 KiB
Python
58 lines
1.3 KiB
Python
"""
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Bare-bones model
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This is a basic model with only two non-primary-key fields.
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"""
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import uuid
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from django.db import models
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class Article(models.Model):
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headline = models.CharField(max_length=100, default="Default headline")
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pub_date = models.DateTimeField()
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class Meta:
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ordering = ("pub_date", "headline")
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def __str__(self):
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return self.headline
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class FeaturedArticle(models.Model):
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article = models.OneToOneField(Article, models.CASCADE, related_name="featured")
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class ArticleSelectOnSave(Article):
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class Meta:
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proxy = True
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select_on_save = True
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class SelfRef(models.Model):
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selfref = models.ForeignKey(
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"self",
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models.SET_NULL,
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null=True,
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blank=True,
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related_name="+",
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)
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article = models.ForeignKey(Article, models.SET_NULL, null=True, blank=True)
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def __str__(self):
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# This method intentionally doesn't work for all cases - part
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# of the test for ticket #20278
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return SelfRef.objects.get(selfref=self).pk
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class PrimaryKeyWithDefault(models.Model):
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uuid = models.UUIDField(primary_key=True, default=uuid.uuid4)
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class PrimaryKeyWithDbDefault(models.Model):
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uuid = models.IntegerField(primary_key=True, db_default=1)
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class ChildPrimaryKeyWithDefault(PrimaryKeyWithDefault):
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pass
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