从南迁移到django 1.8提出表已存在

我有一个项目在django 1.6上运行，并将其升级到1.8，其中包括从南迁移到django的迁移。从南迁移到django 1.8提出表已存在

我试图按照有关如何从南部更新到这里Django的迁移https://docs.djangoproject.com/en/1.8/topics/migrations/#upgrading-from-south

&现在面临试图迁移--initial假票时，一个问题由Django文档中提到的步骤，好像即使一些表存在Django迁移试图创建它们

./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

任何建议请？

问候，

来源

2015-08-22 Mo J. Mughrabi

从文档：

唯一复杂的，如果你有外键循环依赖环路;在这种情况下，makemigrations可能使一个以上的初始迁移，而您需要将它们标记为所有使用应用于：

python manage.py migrate --fake yourappnamehere

所以尝试运行

python manage.py migrate --fake default

它应该做的伎俩。

来源

2015-08-22 22:57:30 zanderle

但我没有面临循环依赖关系，其通过迁移开始的那点和执行，然后由于某种原因，它试图创建一个实际存在的表 –

因此，如果仅为特定应用程序应用迁移，您会得到相同的错误？在运行'makemigrations'之前，您可能对模型做了一些更改吗？ – zanderle

其实zanderle，它原来你提出的是正确的，并制定出来，只需要删除pyc文件 –

类型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.

来源

2015-09-18 12:31:21 GrvTyagi

从南迁移到django 1.8提出表已存在

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