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Model field reference Django documentation Django

Webnull ¶ Field. null ¶ If 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 …

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URL: https://docs.djangoproject.com/en/5.0/ref/models/fields/

Performance and optimization Django documentation Django

WebDjango tools¶. django-debug-toolbar is a very handy tool that provides insights into what your code is doing and how much time it spends doing it. In particular it can show you all …

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Introduction to class-based views Django documentation

WebUsing mixins¶. Mixins are a form of multiple inheritance where behaviors and attributes of multiple parent classes can be combined. For example, in the generic class-based views …

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Logging Django documentation Django

WebBy default, this config sends messages from the django logger of level INFO or higher to the console. This is the same level as Django’s default logging config, except that the default …

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System check framework Django documentation Django

WebSystem check framework. ¶. The system check framework is a set of static checks for validating Django projects. It detects common problems and provides hints for how to fix …

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Migration Operations Django documentation Django

WebMigration Operations¶. Migration files are composed of one or more Operation s, objects that declaratively record what the migration should do to your database.. Django also …

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Settings Django documentation Django

WebA dictionary containing the settings for all caches to be used with Django. It is a nested dictionary whose contents maps cache aliases to a dictionary containing the options for …

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Databases Django documentation Django

WebServer-side cursors¶. When using QuerySet.iterator(), Django opens a server-side cursor.By default, PostgreSQL assumes that only the first 10% of the results of cursor queries will …

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Class-based generic views

WebThis index provides an alternate organization of the reference documentation for class-based views. For each view, the effective attributes and methods from the class tree are …

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Middleware Django documentation Django

WebMiddleware is a framework of hooks into Django’s request/response processing. It’s a light, low-level “plugin” system for globally altering Django’s input or output. Each middleware …

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File storage API Django documentation Django

WebThe actual name of the stored file will be returned. The max_length argument is passed along to get_available_name(). The content argument must be an instance of …

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The staticfiles app Django documentation Django

Webdjango.contrib.staticfiles collects static files from each of your applications (and any other places you specify) into a single location that can easily be served in production. For an …

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数据库 Django 文档 Django

Web详细来说，Django 每当需要连接数据库而又没有连接的时候，就会自动打开一个连接到数据库——或者是因为这是第一个连接，或者是因为之前的连接被关闭。. 在每次请求开始 …

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请求和响应对象 Django 文档 Django

Web快速概述¶. Django 使用请求和响应对象在系统中传递状态。 当一个页面被请求时，Django 会创建一个 HttpRequest 对象，这个对象包含了请求的元数据。 然后，Django 加载相 …

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如何使用 Uvicorn 托管 Django Django 文档 Django

Web对于一个典型的 Django 项目，调用 Uvicorn 的方式如下：. python -m uvicorn myproject.asgi:application. 它将开启一个进程，监听 127.0.0.1:8000 。. 这需要你的项目 …

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配置 Django 文档 Django

WebALLOWED_HOSTS ¶. 默认： [] （空列表） 一个代表这个 Django 网站可以服务的主机／域名的字符串列表。这是一个安全措施，以防止 HTTP 主机头攻击 ，即使在许多看似安全 …

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系统检查框架 Django 文档 Django

Web系统检查框架. ¶. 系统检查框架是一组验证Django项目的静态检查。. 它检测到常见的问题，并提供了如何解决这些问题的提示。. 该框架是可扩展的，所以你可以轻松地添加自己 …

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