mirror of https://github.com/django/django.git
51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
"""
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Custom column/table names
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If your database column name is different than your model attribute, use the
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``db_column`` parameter. Note that you'll use the field's name, not its column
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name, in API usage.
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If your database table name is different than your model name, use the
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``db_table`` Meta attribute. This has no effect on the API used to
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query the database.
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If you need to use a table name for a many-to-many relationship that differs
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from the default generated name, use the ``db_table`` parameter on the
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``ManyToManyField``. This has no effect on the API for querying the database.
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"""
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from django.db import models
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class Author(models.Model):
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Author_ID = models.AutoField(primary_key=True, db_column="Author ID")
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first_name = models.CharField(max_length=30, db_column="firstname")
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last_name = models.CharField(max_length=30, db_column="last")
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class Meta:
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db_table = "my_author_table"
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ordering = ("last_name", "first_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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Article_ID = models.AutoField(primary_key=True, db_column="Article ID")
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headline = models.CharField(max_length=100)
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authors = models.ManyToManyField(Author, db_table="my_m2m_table")
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primary_author = models.ForeignKey(
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Author,
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models.SET_NULL,
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db_column="Author ID",
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related_name="primary_set",
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null=True,
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)
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class Meta:
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ordering = ("headline",)
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def __str__(self):
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return self.headline
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