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579909a13f
Unnamed unique and check columns constraints have the same name as a column. Ensure uniqueness by using custom names. Thanks Adnan Umer for the report.
95 lines
2.7 KiB
Python
95 lines
2.7 KiB
Python
from django.db import models
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class City(models.Model):
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id = models.BigAutoField(primary_key=True)
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name = models.CharField(max_length=50)
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def __str__(self):
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return self.name
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class Country(models.Model):
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id = models.SmallAutoField(primary_key=True)
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name = models.CharField(max_length=50)
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class District(models.Model):
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city = models.ForeignKey(City, models.CASCADE, primary_key=True)
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name = models.CharField(max_length=50)
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def __str__(self):
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return self.name
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class Reporter(models.Model):
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first_name = models.CharField(max_length=30)
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last_name = models.CharField(max_length=30)
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email = models.EmailField()
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facebook_user_id = models.BigIntegerField(null=True)
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raw_data = models.BinaryField(null=True)
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small_int = models.SmallIntegerField()
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interval = models.DurationField()
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class Meta:
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unique_together = ('first_name', 'last_name')
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def __str__(self):
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return "%s %s" % (self.first_name, self.last_name)
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class Article(models.Model):
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headline = models.CharField(max_length=100)
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pub_date = models.DateField()
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body = models.TextField(default='')
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reporter = models.ForeignKey(Reporter, models.CASCADE)
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response_to = models.ForeignKey('self', models.SET_NULL, null=True)
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unmanaged_reporters = models.ManyToManyField(Reporter, through='ArticleReporter', related_name='+')
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class Meta:
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ordering = ('headline',)
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index_together = [
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["headline", "pub_date"],
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['headline', 'response_to', 'pub_date', 'reporter'],
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]
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def __str__(self):
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return self.headline
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class ArticleReporter(models.Model):
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article = models.ForeignKey(Article, models.CASCADE)
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reporter = models.ForeignKey(Reporter, models.CASCADE)
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class Meta:
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managed = False
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class Comment(models.Model):
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ref = models.UUIDField(unique=True)
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article = models.ForeignKey(Article, models.CASCADE, db_index=True)
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email = models.EmailField()
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pub_date = models.DateTimeField()
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body = models.TextField()
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class Meta:
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constraints = [
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models.UniqueConstraint(fields=['article', 'email', 'pub_date'], name='article_email_pub_date_uniq'),
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]
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indexes = [
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models.Index(fields=['email', 'pub_date'], name='email_pub_date_idx'),
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]
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class CheckConstraintModel(models.Model):
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up_votes = models.PositiveIntegerField()
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voting_number = models.PositiveIntegerField(unique=True)
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class Meta:
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required_db_features = {
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'supports_table_check_constraints',
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}
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constraints = [
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models.CheckConstraint(name='up_votes_gte_0_check', check=models.Q(up_votes__gte=0)),
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]
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