id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
21969	Dependent apps do not handle fixture data properly when migration	Ubercore	Andrew Godwin <andrew@…>	"I have {{{ app_a }}}, and {{{ app_b }}}. {{{ app_a }}} lists {{{ app_b }}} as a dependency, and {{{ app_b }}} has a fixture in {{{ initial_data.json }}}. When I run {{{ ./manage.py migrate }}}, the dependency is resolved correctly, and {{{ app_b }}} is migrated first. However, it seems that the fixture tries to load before the table exists:

{{{
$ ./manage.py migrate
Operations to perform:
  Synchronize unmigrated apps: evolve, pipeline, mptt, sessions, admin, suit_redactor, sites, auth, reversion, contenttypes, django_extensions, taggit, suit, easy_thumbnails
  Apply all migrations: content, translation, sites, auth
Synchronizing apps without migrations:
  Creating tables...
    Creating table django_admin_log
    Creating table auth_permission
    Creating table auth_group_permissions
    Creating table auth_group
    Creating table auth_user_groups
    Creating table auth_user_user_permissions
    Creating table auth_user
    Creating table django_content_type
    Creating table django_session
    Creating table django_site
    Creating table easy_thumbnails_source
    Creating table easy_thumbnails_thumbnail
    Creating table reversion_revision
    Creating table reversion_version
    Creating table taggit_tag
    Creating table taggit_taggeditem
  Installing custom SQL...
  Installing indexes...
Traceback (most recent call last):
  File ""./manage.py"", line 10, in <module>
    execute_from_command_line(sys.argv)
  File ""/home/vagrant/ENV/src/django/django/core/management/__init__.py"", line 427, in execute_from_command_line
    utility.execute()
  File ""/home/vagrant/ENV/src/django/django/core/management/__init__.py"", line 419, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File ""/home/vagrant/ENV/src/django/django/core/management/base.py"", line 287, in run_from_argv
    self.execute(*args, **options.__dict__)
  File ""/home/vagrant/ENV/src/django/django/core/management/base.py"", line 336, in execute
    output = self.handle(*args, **options)
  File ""/home/vagrant/ENV/src/django/django/core/management/commands/migrate.py"", line 125, in handle
    created_models = self.sync_apps(connection, executor.loader.unmigrated_apps)
  File ""/home/vagrant/ENV/src/django/django/core/management/commands/migrate.py"", line 281, in sync_apps
    call_command('loaddata', 'initial_data', verbosity=self.verbosity, database=connection.alias, skip_validation=True)
  File ""/home/vagrant/ENV/src/django/django/core/management/__init__.py"", line 167, in call_command
    return klass.execute(*args, **defaults)
  File ""/home/vagrant/ENV/src/django/django/core/management/base.py"", line 336, in execute
    output = self.handle(*args, **options)
  File ""/home/vagrant/ENV/src/django/django/core/management/commands/loaddata.py"", line 56, in handle
    self.loaddata(fixture_labels)
  File ""/home/vagrant/ENV/src/django/django/core/management/commands/loaddata.py"", line 85, in loaddata
    self.load_label(fixture_label)
  File ""/home/vagrant/ENV/src/django/django/core/management/commands/loaddata.py"", line 140, in load_label
    obj.save(using=self.using)
  File ""/home/vagrant/ENV/src/django/django/core/serializers/base.py"", line 172, in save
    models.Model.save_base(self.object, using=using, raw=True)
  File ""/home/vagrant/ENV/src/django/django/db/models/base.py"", line 630, in save_base
    updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
  File ""/home/vagrant/ENV/src/django/django/db/models/base.py"", line 692, in _save_table
    forced_update)
  File ""/home/vagrant/ENV/src/django/django/db/models/base.py"", line 736, in _do_update
    return filtered._update(values) > 0
  File ""/home/vagrant/ENV/src/django/django/db/models/query.py"", line 595, in _update
    return query.get_compiler(self.db).execute_sql(CURSOR)
  File ""/home/vagrant/ENV/src/django/django/db/models/sql/compiler.py"", line 991, in execute_sql
    cursor = super(SQLUpdateCompiler, self).execute_sql(result_type)
  File ""/home/vagrant/ENV/src/django/django/db/models/sql/compiler.py"", line 779, in execute_sql
    cursor.execute(sql, params)
  File ""/home/vagrant/ENV/src/django/django/db/backends/utils.py"", line 77, in execute
    return super(CursorDebugWrapper, self).execute(sql, params)
  File ""/home/vagrant/ENV/src/django/django/db/backends/utils.py"", line 61, in execute
    return self.cursor.execute(sql, params)
  File ""/home/vagrant/ENV/src/django/django/db/utils.py"", line 93, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File ""/home/vagrant/ENV/src/django/django/db/backends/utils.py"", line 61, in execute
    return self.cursor.execute(sql, params)
  File ""/home/vagrant/ENV/src/django/django/db/backends/sqlite3/base.py"", line 494, in execute
    return Database.Cursor.execute(self, query, params)
django.db.utils.OperationalError: Problem installing fixture '/home/vagrant/seie/translation/fixtures/initial_data.json': Could not load translation.Language(pk=1): no such table: translation_language
}}}

In the example above, app_a is content, and app_b is translation. Also note that this example is run immediately after a {{{ reset_db }}}"	Bug	closed	Migrations	dev	Release blocker	fixed			Accepted	0	0	1	0	0	0