Question

我在SQlite上做了我的django开发，现在我试图用postgres 9.5来运行我的应用程序。

然而，当我运行迁移时，我收到此错误 django.db.utils.ProgrammingError：关系“django_content_type”不存在

。我正在使用django 1.8和python 2.7并在进行迁移时获取它，当运行-fake initial得到相同的错误时。

我正在查看现有的答案（这个问题很常见），但我没有看到对我有用的明确答案。

> (mrp) C:\Users\I812624\dev\mrp\src>python manage.py migrate
Operations to perform:
  Synchronize unmigrated apps: django_filters, autofixture, staticfiles, message
s, smart_selects, watson, django_select2, django_countries, mptt, psycopg2, main
, crispy_forms
  Apply all migrations: customer, manufacture, product, vendor, purchase, admin,
 sessions, sales, flatpages, sites, item, contenttypes, production, auth, regist
ration, inventory
Synchronizing apps without migrations:
  Creating tables...
    Creating table watson_searchentry
    Running deferred SQL...
Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "C:\Users\I812624\dev\mrp\lib\site-packages\django\core\management\__init
__.py", line 338, in execute_from_command_line
    utility.execute()
  File "C:\Users\I812624\dev\mrp\lib\site-packages\django\core\management\__init
__.py", line 330, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\Users\I812624\dev\mrp\lib\site-packages\django\core\management\base.p
y", line 390, in run_from_argv
    self.execute(*args, **cmd_options)
  File "C:\Users\I812624\dev\mrp\lib\site-packages\django\core\management\base.p
y", line 441, in execute
    output = self.handle(*args, **options)
  File "C:\Users\I812624\dev\mrp\lib\site-packages\django\core\management\comman
ds\migrate.py", line 179, in handle
    created_models = self.sync_apps(connection, executor.loader.unmigrated_apps)

  File "C:\Users\I812624\dev\mrp\lib\site-packages\django\core\management\comman
ds\migrate.py", line 317, in sync_apps
    cursor.execute(statement)
  File "C:\Users\I812624\dev\mrp\lib\site-packages\django\db\backends\utils.py",
 line 79, in execute
    return super(CursorDebugWrapper, self).execute(sql, params)
  File "C:\Users\I812624\dev\mrp\lib\site-packages\django\db\backends\utils.py",
 line 64, in execute
    return self.cursor.execute(sql, params)
  File "C:\Users\I812624\dev\mrp\lib\site-packages\django\db\utils.py", line 97,
 in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "C:\Users\I812624\dev\mrp\lib\site-packages\django\db\backends\utils.py",
 line 62, in execute
    return self.cursor.execute(sql)
django.db.utils.ProgrammingError: relation "django_content_type" does not exist

Answer 1

settings.py中的DATABASES部分应该是：

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': 'yourdb',
        'USER': 'youruser',
        'PASSWORD': 'yourpass',
        'HOST': '',
    },
}

您的INSTALLED_APPS应包含psycopg2 一旦到位并重新启动服务器，您就可以重新启动，这应该创建缺少的表

Answer 2

应自动创建django_content_type。我想知道你是如何做你的makemigrations的也许试试

python manage.py makemigrations

而不是一个一个地执行

Answer 3

所以在玩完之后就开始工作了。解决方案是我没有将服务器添加到pgAdmin https://www.pgadmin.org/

我假设pgadmin只是一个工具，可以看到最新情况，但是没有将postgre添加到pgadmin，迁移有错误。

Django项目从SQL lite迁移到postgres - 关系“django_content_type”不存在

3 个答案: