公用插件开发-Day1

定制启动执行文件

1.禁用Django自带的admin插件。

在settings文件中注释相关admin，auth，messages组件的注册。

INSTALLED_APPS = [
    # 'django.contrib.admin',
    # 'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    # 'django.contrib.messages',
    'django.contrib.staticfiles',
    'app01.apps.App01Config',
    'app_plug.apps.AppPlugConfig',  # 注册共用插件
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    # 'django.contrib.auth.middleware.AuthenticationMiddleware',
    # 'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'universal_plug.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')]
        ,
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                # 'django.contrib.auth.context_processors.auth',
                # 'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'universal_plug.wsgi.application'


# Database
# https://docs.djangoproject.com/en/2.0/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}


# Password validation
# https://docs.djangoproject.com/en/2.0/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    # {
    #     'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    # },
    # {
    #     'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    # },
    # {
    #     'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    # },
    # {
    #     'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    # },
]


# Internationalization
# https://docs.djangoproject.com/en/2.0/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/2.0/howto/static-files/

STATIC_URL = '/static/'

2.启动文件的定制

首先需要在settings.py注册自己的插件application。

'app_plug.apps.AppPlugConfig',  # 注册共用插件

我们需要的是在Django启动的准备状态的时候就运行我们自己的注册程序，将插件需要的信息获取到，所以我模仿了Django的admin的做法，在app_plug中放入apps.py写入启动规则：

class AppPlugConfig(AppConfig):
    name = 'app_plug'

    def ready(self):
        super(AppPlugConfig, self).ready()

        from django.utils.module_loading import autodiscover_modules
        autodiscover_modules('plug')

 最后在需要插件的app中加入plug.py文件，在Django程序启动的时候就会先执行plug.py中的方法了。

GitHub:https://github.com/EditYJ/universal_plug/