#23630: AlterModelTable doesn't rename auto-created tables
----------------------------+------------------------------------
Reporter: Naddiseo | Owner: nobody
Type: Bug | Status: new
Component: Migrations | Version: 1.7
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
----------------------------+------------------------------------
Changes (by Naddiseo):
* status: closed => new
* resolution: wontfix =>
Comment:
Steps to reproduce:
1. Create models as such:
{{{#!python
class Spam(models.Model):
class Meta:
db_table = 'hello_spam'
class Eggs(models.Model):
class Meta:
db_table = 'hello_eggs'
m2m = models.ManyToManyField(Spam)
}}}
2. Create, and run, a migration. Tables created:
{{{
$ sqlite3 db.sqlite3 .tables
django_migrations hello_eggs hello_eggs_m2m hello_spam
}}}
3. Remove the `Meta.db_table` entries.
4. Create an empty migration.
5. Add the following to the migration (this step should be automated, but
is blocked on #23629):
{{{#!python
class Migration(migrations.Migration):
dependencies = [
('spam', '0001_initial'),
]
operations = [
# Rename the models to what they should default to
migrations.AlterModelTable(
name = 'Spam',
table = 'spam_spam'
),
migrations.AlterModelTable(
name = 'Eggs',
table = 'spam_eggs'
),
]
}}}
6. Run migrations. Current tables:
{{{
$ sqlite3 db.sqlite3 .tables
django_migrations hello_eggs_m2m spam_eggs spam_spam
}}}
As you can see, the m2m table isn't renamed, and one would have to
manually add the following to the migration:
{{{#!python
migrations.RunPython(lambda a, e: e.alter_db_table(None, 'hello_eggs_m2m',
'spam_eggs_m2m'))
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/23630#comment:4>
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