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47 lines
1.4 KiB
Python
47 lines
1.4 KiB
Python
"""
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17. 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 __future__ import unicode_literals
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from django.db import models
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from django.utils.encoding import python_2_unicode_compatible
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@python_2_unicode_compatible
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class Author(models.Model):
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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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def __str__(self):
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return '%s %s' % (self.first_name, self.last_name)
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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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@python_2_unicode_compatible
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class Article(models.Model):
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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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def __str__(self):
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return self.headline
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class Meta:
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ordering = ('headline',)
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