shaowei的博客

首先数据库迁移的两大命令：python manage.py makemigrations & python manage.py migrate前者是将model层转为迁移文件migration，后者将新版本的迁移文件执行，更新数据库。这两中命令调用默认为全局，即对所有最新更改的model或迁移文件进行操作。如果想对部分app进行操作，就要在其后追加app name：$ python...

django 兼容mysql数据库配置文件写错了

继承的调用重写框架的类,如果想被框架调用,需要在设置文件中配置重写的类如果是自己调用这不需要设置例如import refrom django.contrib.auth.backends import ModelBackendfrom users.models import Userdef jwt_response_payload_handler(token, user=None...

HTTP 的 OPTIONS 方法 用于获取目的资源所支持的通信选项。客户端可以对特定的 URL 使用 OPTIONS 方法，也可以对整站（通过将 URL 设置为“*”）使用该方法。Request has bodyNoSuccessful response has bodyNoSafeYesIdempotentYesCacheableNo...

# users/views.pyclass UserDetailView(RetrieveAPIView): """ 获取用户信息 """ serializer_class = UserDetailSerialzier permission_classes = [IsAuthenticated] # 登录后可以查看 # 重写generics/...

nullIf True, Django will store empty values as NULL in the database. Default is False.Avoid using null on string-based fields such as CharField and TextField. If a string-based field has null=True, ...

This is not really django specific; more to do with databases. You add indexes on columns when you want to speed up searches on that column.Typically, only the primary key is indexed by the database....

I’ll go through the values for on_delete as they apply to this case. As it notes in the docs, these are all in that models module, so you’d use it as models.ForeignKey(UserProfile, on_delete=models.CA...

视图响应了方法写错了,不支h持Response,请使用HttpResponseJsonResponseHttpResponse的子类HttpResponseRedirect 301HttpResponsePermanentRedirect 302HttpResponseNotModified 304HttpResponseBadRequest 400HttpResponseNot...

Django运行方式及处理流程总结一 Django运行方式一种是在开发和调试中经常用到的runserver方法,使用django自己的web server第二种使用fastcgi, uWSGIt等协议运行的Django项目1. runserver方法runserver方法是调试Django时经常用到的运行方式，它使用Django自带的WSGI Server运行，主要在测试和开发中使用，使...

ProblemsolutionThe error log is straightforward. As it suggested,You need to add 198.211.99.20 to your ALLOWED_HOSTS setting.In your project settings.py file,set ALLOWED_HOSTS like this :ALLOWED_...

第一步：删除该app名字下的migrations下的__init__.py等文件。第二步：进入数据库，找到django_migrations的表，删除该app名字的所有记录。第三步：执行下面这两条命令：（在项目目录下）python manage.py makemigrationspython manage.py migrate原因：django_migrations表记录着数据...