#27168: "LookupError: App 'xxxxx' doesn't have a 'xxxxx' model" with custom
table
name
----------------------------+--------------------------------------
Reporter: chagh | Owner: nobody
Type: Bug | Status: new
Component: Migrations | Version: 1.8
Severity: Normal | Resolution:
Keywords: migration | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
----------------------------+--------------------------------------
Comment (by chagh):
The original code is this:
{{{
def migrate_client_billing(apps, schema_editor):
engagement_client_model = apps.get_model(
app_label='engagement',
model_name='EngagementClient')
client_billing_model = apps.get_model(
app_label='billing',
model_name='ClientBilling')
engagement_clients = engagement_client_model.objects.all()
for engagement_client in engagement_clients:
obj, created = client_billing_model.objects.get_or_create(
engagement=engagement_client.engagement,
client=engagement_client.client
)
}}}
My teammate wasn't able to reproduce it either.
My env is Python 2.7.11 with Django 1.8.12
This is the stack trace:
{{{
Operations to perform:
Apply all migrations: billing
Running migrations:
Rendering model states... DONE
Applying billing.0003_create_missing_client_billing...Traceback (most
recent call last):
File "manage.py", line 12, in <module>
execute_from_command_line(sys.argv)
File "/home/user/project101/lib/python2.7/site-
packages/django/core/management/__init__.py", line 354, in
execute_from_command_line
utility.execute()
File "/home/user/project101/lib/python2.7/site-
packages/django/core/management/__init__.py", line 346, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/user/project101/lib/python2.7/site-
packages/django/core/management/base.py", line 394, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/user/project101/lib/python2.7/site-
packages/django/core/management/base.py", line 445, in execute
output = self.handle(*args, **options)
File "/home/user/project101/lib/python2.7/site-
packages/django/core/management/commands/migrate.py", line 222, in handle
executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial)
File "/home/user/project101/lib/python2.7/site-
packages/django/db/migrations/executor.py", line 110, in migrate
self.apply_migration(states[migration], migration, fake=fake,
fake_initial=fake_initial)
File "/home/user/project101/lib/python2.7/site-
packages/django/db/migrations/executor.py", line 148, in apply_migration
state = migration.apply(state, schema_editor)
File "/home/user/project101/lib/python2.7/site-
packages/django/db/migrations/migration.py", line 112, in apply
operation.database_forwards(self.app_label, schema_editor, old_state,
project_state)
File "/home/user/project101/lib/python2.7/site-
packages/django/db/migrations/operations/special.py", line 183, in
database_forwards
self.code(from_state.apps, schema_editor)
File
"/home/user/project101/project/billing/migrations/0003_create_missing_client_billing.py",
line 15, in migrate_client_billing
model_name='EngagementClient')
File "/home/user/project101/lib/python2.7/site-
packages/django/apps/registry.py", line 202, in get_model
return self.get_app_config(app_label).get_model(model_name.lower())
File "/home/user/project101/lib/python2.7/site-
packages/django/apps/config.py", line 162, in get_model
"App '%s' doesn't have a '%s' model." % (self.label, model_name))
LookupError: App 'engagement' doesn't have a 'engagementclient' model.
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/27168#comment:3>
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