我正在尝试在包含一些迁移的 django 应用程序中统一我的模型。我已经准备好了我的测试，但是在运行时
./manage.py test my_app
我收到以下错误
django.db.utils.OperationalError: (1005, "Can't create table 'test_rhombusdb.#sql-4ca_2c' (errno: 150)")
数据库是正常创建的，所以我想我有创建数据库的权限。我真的不知道这是指哪个表。迁移通过正常，db 在生产中工作正常。这里可能是什么问题？
你还想要什么其他信息？
我的堆栈跟踪
File "./manage.py", line 18, in <module>
execute_from_command_line(sys.argv)
File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
utility.execute()
File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 330, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/test.py", line 30, in run_from_argv
super(Command, self).run_from_argv(argv)
File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 393, in run_from_argv
self.execute(*args, **cmd_options)
File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/test.py", line 74, in execute
super(Command, self).execute(*args, **options)
File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 444, in execute
output = self.handle(*args, **options)
File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/test.py", line 90, in handle
failures = test_runner.run_tests(test_labels)
File "/usr/local/lib/python2.7/dist-packages/django/test/runner.py", line 210, in run_tests
old_config = self.setup_databases()
File "/usr/local/lib/python2.7/dist-packages/django/test/runner.py", line 166, in setup_databases
**kwargs
File "/usr/local/lib/python2.7/dist-packages/django/test/runner.py", line 370, in setup_databases
serialize=connection.settings_dict.get("TEST", {}).get("SERIALIZE", True),
File "/usr/local/lib/python2.7/dist-packages/django/db/backends/base/creation.py", line 368, in create_test_db
test_flush=not keepdb,
File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 120, in call_command
return command.execute(*args, **defaults)
File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 444, in execute
output = self.handle(*args, **options)
File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/migrate.py", line 179, in handle
created_models = self.sync_apps(connection, executor.loader.unmigrated_apps)
File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/migrate.py", line 317, in sync_apps
cursor.execute(statement)
File "/usr/local/lib/python2.7/dist-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "/usr/local/lib/python2.7/dist-packages/django/db/utils.py", line 97, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/usr/local/lib/python2.7/dist-packages/django/db/backends/utils.py", line 62, in execute
return self.cursor.execute(sql)
File "/usr/local/lib/python2.7/dist-packages/django/db/backends/mysql/base.py", line 124, in execute
return self.cursor.execute(query, args)
File "/usr/local/lib/python2.7/dist-packages/MySQLdb/cursors.py", line 205, in execute
self.errorhandler(self, exc, value)
File "/usr/local/lib/python2.7/dist-packages/MySQLdb/connections.py", line 36, in defaulterrorhandler
raise errorclass, errorvalue
django.db.utils.OperationalError: (1005, "Can't create table 'testdb.#sql-4ca_7c' (errno: 150)")
我可以看到调用迁移时出现错误。
PS：我删除了我的数据库（真实数据库，但开发数据库）并尝试重新创建运行迁移的表。我遇到了同样的错误。再次运行 migrate 就像一个魅力......这里真的真的很不对劲......
PS2：删除所有迁移文件夹并在不存在迁移文件夹的情况下运行迁移后开始给我同样的错误....非常糟糕的错误很难调试
PS3：我的一个模型（至少到目前为止我已经测试过）的外键存在问题。我尝试停用应用程序并按条件激活它们，当我到达特定的应用程序时，发生了错误。我隔离了一个模型，并给了我这个问题。我注释掉了外键并工作了。再次取消注释其中一个错误。
class Patient(models.Model):
#many fields here
doctor = models.ForeignKey(settings.AUTH_USER_MODEL, related_name="patients")
它适用于 1.6 和 sqlite3，我移至 1.8 和 mysql，然后繁荣......错误。
AUTH_USER_MODEL = 'users.MyCustomUser'
MyCustomUser 是一个继承 AbstractBaseUser 和 PermissionsMixin 的类。