text: """
  Django settings for blogproject project.
  
  Generated by 'django-admin startproject' using Django 2.2.3.
  
  For more information on this file, see
  https://docs.djangoproject.com/en/2.2/topics/settings/
  
  For the full list of settings and their values, see
  https://docs.djangoproject.com/en/2.2/ref/settings/
  """
  
  import os
  
  # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
  back = os.path.dirname
  
  BASE_DIR = back(back(back(os.path.abspath(__file__))))
  
  # Quick-start development settings - unsuitable for production
  # See https://docs.djangoproject.com/en/2.2/howto/deployment/checklist/
  
  # Application definition
  
  INSTALLED_APPS = [
      "django.contrib.admin",
      "django.contrib.auth",
      "django.contrib.contenttypes",
      "django.contrib.sessions",
      "django.contrib.messages",
      "django.contrib.staticfiles",
      "pure_pagination",  # 分页
      "haystack",  # 搜索
      "blog.apps.BlogConfig",  # 注册 blog 应用
      "comments.apps.CommentsConfig",  # 注册 comments 应用
  ]
  
  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 = "blogproject.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 = "blogproject.wsgi.application"
  
  # Database
  # https://docs.djangoproject.com/en/2.2/ref/settings/#databases
  
  DATABASES = {
      "default": {
          "ENGINE": "django.db.backends.sqlite3",
          "NAME": os.path.join(BASE_DIR, "database", "db.sqlite3"),
      }
  }
  
  # Password validation
  # https://docs.djangoproject.com/en/2.2/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/2.2/topics/i18n/
  
  LANGUAGE_CODE = "zh-hans"
  
  TIME_ZONE = "Asia/Shanghai"
  
  USE_I18N = True
  
  USE_L10N = True
  
  USE_TZ = True
  
  # Static files (CSS, JavaScript, Images)
  # https://docs.djangoproject.com/en/2.2/howto/static-files/
  
  STATIC_URL = "/static/"
  STATIC_ROOT = os.path.join(BASE_DIR, "static")
  
  # 分页设置
  PAGINATION_SETTINGS = {
      "PAGE_RANGE_DISPLAYED": 4,
      "MARGIN_PAGES_DISPLAYED": 2,
      "SHOW_FIRST_PAGE_WHEN_INVALID": True,
  }
  
  # 搜索设置
  HAYSTACK_CONNECTIONS = {
      "default": {
          "ENGINE": "blog.elasticsearch2_ik_backend.Elasticsearch2IkSearchEngine",
          "URL": "",
          "INDEX_NAME": "hellodjango_blog_tutorial",
      },
  }
  HAYSTACK_SEARCH_RESULTS_PER_PAGE = 10
  
  enable = os.environ.get("ENABLE_HAYSTACK_REALTIME_SIGNAL_PROCESSOR", "yes")
  if enable in {"true", "True", "yes"}:
      HAYSTACK_SIGNAL_PROCESSOR = "haystack.signals.RealtimeSignalProcessor"
  
  HAYSTACK_CUSTOM_HIGHLIGHTER = "blog.utils.Highlighter"
  # HAYSTACK_DEFAULT_OPERATOR = 'AND'
  # HAYSTACK_FUZZY_MIN_SIM = 0.1
  