Django MongoDB 迁移警告

Question

  Applying contenttypes.0001_initial...This version of djongo does not support "schema validation using CONSTRAINT" fully. Visit https://www.patreon.com/nesdis
 OK
  Applying auth.0001_initial...This version of djongo does not support "schema validation using KEY" fully. Visit https://www.patreon.com/nesdis
This version of djongo does not support "schema validation using REFERENCES" fully. Visit https://www.patreon.com/nesdis
 OK
  Applying admin.0001_initial... OK
  Applying admin.0002_logentry_remove_auto_add... OK
  Applying admin.0003_logentry_add_action_flag_choices... OK
  Applying contenttypes.0002_remove_content_type_name...This version of djongo does not support "COLUMN DROP NOT NULL " fully. Visit https://www.patreon.com/nesdis
This version of djongo does not support "DROP CASCADE" fully. Visit https://www.patreon.com/nesdis
 OK
  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 auth.0007_alter_validators_add_error_messages... OK
  Applying auth.0008_alter_user_username_max_length... OK
  Applying auth.0009_alter_user_last_name_max_length... OK
  Applying auth.0010_alter_group_name_max_length... OK
  Applying auth.0011_update_proxy_permissions... OK
  Applying sessions.0001_initial... OK

我正在尝试将 Django 与 MongoDB 数据库连接。 为什么我在迁移时收到这些警告？

Answer 1

Django 项目本身不支持 MongoDB，只能通过 Djongo 适配器支持。

这些模型/迁移使用了 Djongo 目前不支持的某些 Django 核心功能，从错误消息中可以明显看出。

Answer 2

一个老问题，但你可以通过安装特定的 pymongo 版本来解决问题。

试试这个：

pip install pymongo==3.12.1 --upgrade

然后再次尝试进行迁移。