django 项目常用配置

mkdir  LJblog && cd LJblog
#建立目录

python3 -m venv env_django (或: virtualenv -p `which  python3` env_django)
source  env_django/bin/activate
#配置env环境


pip install -i http://mirrors.aliyun.com/pypi/simple   --trusted-host mirrors.aliyun.com  django
# pip包
pip install -i http://mirrors.aliyun.com/pypi/simple   --trusted-host mirrors.aliyun.com  -r install/requirements.txt
# 安装requirements.txt；导入方式 pip freeze >requirements.txt

django-admin startproject website. #创建项目
mkdir apps  static templates uploads # apps主目录、静态文件、模板、上传目录
cd apps && python3 ../manage.py startapp assets # 创建应用

INSTALLED_APPS = [
    ......
    'assets', # 新应用
]

# 模板
TEMPLATES = [
   {
          ... ...
          'DIRS': [os.path.join(BASE_DIR, 'templates')],
          ... ...

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


# 静态文件
STATIC_URL = '/static/'
STATICFILES_DIRS = (
    # os.path.join(BASE_DIR,"/data/LJblog/static/",),
    os.path.join(BASE_DIR,"static",),
)

# app目录(导入sys模块)
import sys
sys.path.insert(0, os.path.join(BASE_DIR, 'apps'))

# 媒体文件的路径
MEDIA_ROOT = os.path.join(BASE_DIR, 'uploads')
MEDIA_URL = '/uploads/'


# 语言,时区
LANGUAGE_CODE = 'zh-hans'
TIME_ZONE = 'Asia/Shanghai'

#debug sql
LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
        'console': {
            'class': 'logging.StreamHandler',
        },
    },
    'loggers': {
        'django.db.backends': {
            'handlers': ['console'],
            'level': 'DEBUG' if DEBUG else 'INFO',
        },
    },
}

python manage.py makemigrations 
#为改动models创建迁移记录
python manage.py migrate 
#同步数据库
python manage.py  createsuperuser
#建立后台管理员帐号

python manage.py runserver
#启动服务

from  assets.models   import  *

[ i.hostname  for i in  Asset.objects.all()]
Area.objects.filter(needed_cabinet=True).exists()