Traceback first:
./manage.py makemigrations
Traceback (most recent call last):
File "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File
"/home/me/.virtualenvs/fluent/local/lib/python2.7/site-packages/django/core/management/__init__.py",
line 351, in execute_from_command_line
utility.execute()
File
"/home/me/.virtualenvs/fluent/local/lib/python2.7/site-packages/django/core/management/__init__.py",
line 343, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File
"/home/me/.virtualenvs/fluent/local/lib/python2.7/site-packages/django/core/management/base.py",
line 394, in run_from_argv
self.execute(*args, **cmd_options)
File
"/home/me/.virtualenvs/fluent/local/lib/python2.7/site-packages/django/core/management/base.py",
line 445, in execute
output = self.handle(*args, **options)
File
"/home/me/.virtualenvs/fluent/local/lib/python2.7/site-packages/django/core/management/commands/makemigrations.py",
line 125, in handle
migration_name=self.migration_name,
File
"/home/me/.virtualenvs/fluent/local/lib/python2.7/site-packages/django/db/migrations/autodetector.py",
line 43, in changes
changes = self._detect_changes(convert_apps, graph)
File
"/home/me/.virtualenvs/fluent/local/lib/python2.7/site-packages/django/db/migrations/autodetector.py",
line 110, in _detect_changes
self.old_apps = self.from_state.concrete_apps
File
"/home/me/.virtualenvs/fluent/local/lib/python2.7/site-packages/django/db/migrations/state.py",
line 170, in concrete_apps
self.apps = StateApps(self.real_apps, self.models,
ignore_swappable=True)
File
"/home/me/.virtualenvs/fluent/local/lib/python2.7/site-packages/django/db/migrations/state.py",
line 248, in __init__
raise ValueError(msg.format(field=operations[0][1], model=lookup_model))
ValueError: Lookup failed for model referenced by field
sdd.Documentation.opportunity: sdd.......governance.models.Opportunity
Needless to say, sdd.......governance.models.Opportunity is not a valid
path to anything.
The Opportunity model was moved from the sdd application to the governance
application. Documentation has a foreign key to Opportunity. The Python
itself is correct. It used to be a direct reference to the class in the
module, now it's an imported reference. All of the foreign keys are handled
in the same way. Nothing is done by string.
I'm ok with a one-off solution for the migration, but I'm more interested
in *why* the model path is so far off and what I might have done to cause
it.
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