1、AppConfig 需要了解 目前理解为 注册installed_app使用，可以增加其他一些属性
2、logger 需要进一步学习，用于日志记录，理解log运行流程，特别是handler的使用，切分日志文件，理解其每天按时间记录，保持每天生成日志，删除过期日志。目前打开log日志会报错 ：Resource deadlock avoided ，已关闭日志
3、makemigrations No Changes Detected 需要寻找原因， 数据库内的表已经删除，且源码内部的migrations文件夹已删除，百度有以下原因：
- migration folder You need a migrations package in your app.
- INSTALLED_APPS You need your app to be specified in the
INSTALLED_APPS.dict - Verbosity start by running
makemigrations -v 3for verbosity. This might shed some light on the problem. - Full path In
INSTALLED_APPSit is recommended to specify the full module app config path 'apply.apps.MyAppConfig' - --settings you might want to make sure the correct settings file is set:
manage.py makemigrations --settings mysite.settings - specify app name explicitly put the app name in
manage.py makemigrations myapp- that narrows down the migrations for the app alone and helps you isolate the problem. -
model meta check you have the right
app_labelin your model meta -
Debug django debug django core script. makemigrations command is pretty much straight forward. Here's how to do it in pycharm. change your script definition accordingly (ex:
makemigrations --traceback myapp)