從南遷移到django 1.8提出表已存在

我有一個項目在django 1.6上運行，並將其升級到1.8，其中包括從南遷移到django的遷移。從南遷移到django 1.8提出表已存在

我試圖按照有關如何從南部更新到這裏Django的遷移https://docs.djangoproject.com/en/1.8/topics/migrations/#upgrading-from-south

&現在面臨試圖遷移--initial假票時，一個問題由Django文檔中提到的步驟，好像即使一些表存在Django遷移試圖創建它們

./manage.py migrate --fake-initial 


Running migrations: 
    Rendering model states... DONE 
    Applying retail.0001_initial... FAKED 
    Applying contenttypes.0001_initial... FAKED 
    Applying contenttypes.0002_remove_content_type_name... OK 
    Applying auth.0001_initial... FAKED 
    Applying auth.0002_alter_permission_name_max_length... OK 
    Applying auth.0003_alter_user_email_max_length... OK 
    Applying auth.0004_alter_user_username_opts... OK 
    Applying auth.0005_alter_user_last_login_null... OK 
    Applying auth.0006_require_contenttypes_0002... OK 
    Applying account.0001_initial... FAKED 
    Applying default.0001_initial...Traceback (most recent call last): 
    File "./manage.py", line 11, in <module> 
    execute_from_command_line(sys.argv) 
    File "/project-path/lib/python2.7/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line 
    utility.execute() 
    File "/project-path/lib/python2.7/site-packages/django/core/management/__init__.py", line 330, in execute 
    self.fetch_command(subcommand).run_from_argv(self.argv) 
    File "/project-path/lib/python2.7/site-packages/django/core/management/base.py", line 393, in run_from_argv 
    self.execute(*args, **cmd_options) 
    File "/project-path/lib/python2.7/site-packages/django/core/management/base.py", line 444, in execute 
    output = self.handle(*args, **options) 
    File "/project-path/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 "/project-path/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 "/project-path/lib/python2.7/site-packages/django/db/migrations/executor.py", line 148, in apply_migration 
    state = migration.apply(state, schema_editor) 
    File "/project-path/lib/python2.7/site-packages/django/db/migrations/migration.py", line 115, in apply 
    operation.database_forwards(self.app_label, schema_editor, old_state, project_state) 
    File "/project-path/lib/python2.7/site-packages/django/db/migrations/operations/models.py", line 59, in database_forwards 
    schema_editor.create_model(model) 
    File "/project-path/lib/python2.7/site-packages/django/db/backends/base/schema.py", line 286, in create_model 
    self.execute(sql, params or None) 
    File "/project-path/lib/python2.7/site-packages/django/db/backends/base/schema.py", line 111, in execute 
    cursor.execute(sql, params) 
    File "/project-path/lib/python2.7/site-packages/django/db/backends/utils.py", line 79, in execute 
    return super(CursorDebugWrapper, self).execute(sql, params) 
    File "/project-path/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute 
    return self.cursor.execute(sql, params) 
    File "/project-path/lib/python2.7/site-packages/django/db/utils.py", line 97, in __exit__ 
    six.reraise(dj_exc_type, dj_exc_value, traceback) 
    File "/project-path/lib/python2.7/site-packages/django/db/backends/utils.py", line 62, in execute 
    return self.cursor.execute(sql) 
django.db.utils.ProgrammingError: relation "social_auth_association" already exists

任何建議請？

問候，

來源

2015-08-22 Mo J. Mughrabi

從文檔：

唯一複雜的，如果你有外鍵循環依賴環路;在這種情況下，makemigrations可能使一個以上的初始遷移，而您需要將它們標記爲所有使用應用於：

python manage.py migrate --fake yourappnamehere

所以嘗試運行

python manage.py migrate --fake default

它應該做的伎倆。

來源

2015-08-22 22:57:30 zanderle

但我沒有面臨循環依賴關係，其通過遷移開始的那點和執行，然後由於某種原因，它試圖創建一個實際存在的表 –

因此，如果僅爲特定應用程序應用遷移，您會得到相同的錯誤？在運行'makemigrations'之前，您可能對模型做了一些更改嗎？ – zanderle

其實zanderle，它原來你提出的是正確的，並制定出來，只需要刪除pyc文件 –

類型python manage.py migrate --help

--fake Mark migrations as run without actually running them.

--fake-initial Detect if tables already exist and fake-apply initial migrations if so. Make sure that the current database schema matches your initial migration before using this flag. Django will only check for an existing table name.

來源

2015-09-18 12:31:21 GrvTyagi

從南遷移到django 1.8提出表已存在

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