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Python Software Foundation GSoC Blog Platform. This system was used until 2024 but is no longer maintained.
http://python-gsoc.org/
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GSoC 2019 - Fix Migrations #9

Closed botanicvelious closed 5 years ago

botanicvelious commented 5 years ago

Currently, 2 databases are used, default and auth_db. This task is to fix the django setup so that normal migration commands work on auth_db without just sticking all the possible tables into the auth_db.

For an example of the problem 

[root@localhost pythongsoc]# python3.6 manage.py migrate --database auth_db
Operations to perform:
  Apply all migrations: admin, auth, cms, cmsplugin_filer_image, contenttypes, djangocms_blog, djangocms_column, djangocms_file, djangocms_googlemap, djangocms_link, djangocms_picture, djangocms_snippet, djangocms_style, djangocms_text_ckeditor, djangocms_video, easy_thumbnails, filer, menus, sessions, sites, taggit
Running migrations:
  Applying cmsplugin_filer_image.0003_mv_thumbnail_option_to_filer_20160119_1720...Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/usr/lib/python3.6/site-packages/django/db/backends/sqlite3/base.py", line 328, in execute
    return Database.Cursor.execute(self, query, params)
sqlite3.OperationalError: no such table: cmsplugin_filer_image_thumbnailoption

The above exception was the direct cause of the following exception:

Traceback

 (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/lib/python3.6/site-packages/django/core/management/__init__.py", line 364, in execute_from_command_line
    utility.execute()
  File "/usr/lib/python3.6/site-packages/django/core/management/__init__.py", line 356, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/lib/python3.6/site-packages/django/core/management/base.py", line 283, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/usr/lib/python3.6/site-packages/django/core/management/base.py", line 330, in execute
    output = self.handle(*args, **options)
  File "/usr/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 204, in handle
    fake_initial=fake_initial,
  File "/usr/lib/python3.6/site-packages/django/db/migrations/executor.py", line 115, in migrate
    state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
  File "/usr/lib/python3.6/site-packages/django/db/migrations/executor.py", line 145, in _migrate_all_forwards
    state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
  File "/usr/lib/python3.6/site-packages/django/db/migrations/executor.py", line 244, in apply_migration
    state = migration.apply(state, schema_editor)
  File "/usr/lib/python3.6/site-packages/django/db/migrations/migration.py", line 129, in apply
    operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
  File "/usr/lib/python3.6/site-packages/django/db/migrations/operations/special.py", line 193, in database_forwards
    self.code(from_state.apps, schema_editor)
  File "/usr/lib/python3.6/site-packages/cmsplugin_filer_image/migrations/0003_mv_thumbnail_option_to_filer_20160119_1720.py", line 9, in move_thumbnail_opt_to_filer
    for obj in ThumbnailOption.objects.all():
  File "/usr/lib/python3.6/site-packages/django/db/models/query.py", line 250, in __iter__
    self._fetch_all()
  File "/usr/lib/python3.6/site-packages/django/db/models/query.py", line 1121, in _fetch_all
    self._result_cache = list(self._iterable_class(self))
  File "/usr/lib/python3.6/site-packages/django/db/models/query.py", line 53, in __iter__
    results = compiler.execute_sql(chunked_fetch=self.chunked_fetch)
  File "/usr/lib/python3.6/site-packages/django/db/models/sql/compiler.py", line 899, in execute_sql
    raise original_exception
  File "/usr/lib/python3.6/site-packages/django/db/models/sql/compiler.py", line 889, in execute_sql
    cursor.execute(sql, params)
  File "/usr/lib/python3.6/site-packages/django/db/backends/utils.py", line 79, in execute
    return super(CursorDebugWrapper, self).execute(sql, params)
  File "/usr/lib/python3.6/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/usr/lib/python3.6/site-packages/django/db/utils.py", line 94, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/usr/lib/python3.6/site-packages/django/utils/six.py", line 685, in reraise
    raise value.with_traceback(tb)
  File "/usr/lib/python3.6/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/usr/lib/python3.6/site-packages/django/db/backends/sqlite3/base.py", line 328, in execute
    return Database.Cursor.execute(self, query, params)
django.db.utils.OperationalError: no such table: cmsplugin_filer_image_thumbnailoption
sounak98 commented 5 years ago

@botanicvelious take a look at the PR