#24311: Foreign key constraint error when syncing unmigrated models that relate
to
migrated models
---------------------------------+--------------------------------------
Reporter: collinanderson | Owner: nobody
Type: Bug | Status: closed
Component: Migrations | Version: 1.8alpha1
Severity: Release blocker | Resolution: wontfix
Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
---------------------------------+--------------------------------------
Comment (by MarkusH):
Hint: the constraints to e.g. `auth_group` are created if `auth` has been
migrated before:
{{{#!bash
$ python manage.py migrate auth
$ python manage.py migrate
$ echo "SHOW CREATE TABLE app_myuser_groups;" | mysql -u django -p django
Enter password:
Table Create Table
app_myuser_groups CREATE TABLE `app_myuser_groups` (\n `id` int(11)
NOT NULL AUTO_INCREMENT,\n `myuser_id` int(11) NOT NULL,\n `group_id`
int(11) NOT NULL,\n PRIMARY KEY (`id`),\n UNIQUE KEY `myuser_id`
(`myuser_id`,`group_id`),\n KEY `app_myuser_groups_f1d9e869`
(`myuser_id`),\n KEY `app_myuser_groups_5f412f9a` (`group_id`),\n
CONSTRAINT `group_id_refs_id_58abbaa5` FOREIGN KEY (`group_id`) REFERENCES
`auth_group` (`id`),\n CONSTRAINT `myuser_id_refs_id_08272aba` FOREIGN
KEY (`myuser_id`) REFERENCES `app_myuser` (`id`)\n) ENGINE=InnoDB DEFAULT
CHARSET=utf8
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/24311#comment:5>
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