Django 初始化数据库

Posted 2020-10-14 左丿仔

django 初始化数据库

刷新数据库
guoguos-MacBook-Pro:mysite guoguo$ python manage.py sqlflush
BEGIN;
SET FOREIGN_KEY_CHECKS = 0;
TRUNCATE `auth_user`;
TRUNCATE `auth_group`;
TRUNCATE `auth_user_user_permissions`;
TRUNCATE `django_content_type`;
TRUNCATE `auth_group_permissions`;
TRUNCATE `django_session`;
TRUNCATE `django_admin_log`;
TRUNCATE `auth_user_groups`;
TRUNCATE `auth_permission`;
SET FOREIGN_KEY_CHECKS = 1;
COMMIT;

清空数据库的数据
guoguos-MacBook-Pro:mysite guoguo$ python manage.py flush
You have requested a flush of the database.
This will IRREVERSIBLY DESTROY all data currently in the ‘django‘ database,
and return each table to an empty state.
Are you sure you want to do this?

    Type ‘yes‘ to continue, or ‘no‘ to cancel: yes

删除数据库表结构
mysql> drop tables auth_permission;
Query OK, 0 rows affected (0.01 sec)

初始化数据库

guoguos-MacBook-Pro:mysite guoguo$ python manage.py migrate
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, sessions
Running migrations:
  Applying contenttypes.0001_initial... OK
  Applying auth.0001_initial... OK
  Applying admin.0001_initial... OK
  Applying admin.0002_logentry_remove_auto_add... OK
  Applying contenttypes.0002_remove_content_type_name... 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 sessions.0001_initial... OK
guoguos-MacBook-Pro:mysite guoguo$
guoguos-MacBook-Pro:mysite guoguo$
guoguos-MacBook-Pro:mysite guoguo$
guoguos-MacBook-Pro:mysite guoguo$

在setting.py INSTALLED_APPS = 中增加 guoguo 项目

INSTALLED_APPS = [
    ‘guoguo‘,
    ‘django.contrib.admin‘,
    ‘django.contrib.auth‘,
    ‘django.contrib.contenttypes‘,
    ‘django.contrib.sessions‘,
    ‘django.contrib.messages‘,
    ‘django.contrib.staticfiles‘,
]


在项目里生成一个表文件
guoguos-MacBook-Pro:mysite guoguo$ python manage.py makemigrations guoguo
Migrations for ‘guoguo‘:
  guoguo/migrations/0001_initial.py
    - Create model Person

生成表结构
guoguos-MacBook-Pro:mysite guoguo$ python manage.py sqlmigrate guoguo 0001
BEGIN;
--
-- Create model Person
--
CREATE TABLE `guoguo_person` (`id` integer AUTO_INCREMENT NOT NULL PRIMARY KEY, `first_name` varchar(30) NOT NULL, `last_name` varchar(30) NOT NULL);
COMMIT;


把表结构导入数据库


guoguos-MacBook-Pro:mysite guoguo$ python manage.py migrate
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, guoguo, sessions
Running migrations:
  Applying guoguo.0001_initial... OK