如何在Django自定义404错误模板中显示传递给Http404的消息？ [英] How to display the message passed to Http404 in a custom 404 Error template in Django?

问题描述

我有一个我在django工作的项目。有很多情况下，我：

  raise Http404（this is a error）
  

，它为我创建了一个不错的404页面，并出现了错误消息这是一个错误。

我现在想创建一个自定义的错误页面，并且仍然显示消息，但我无法弄清楚如何。

我确定它只是一个模板变量，我需要添加到我的自定义404模板，但我找不到任何文档。

解决方案

从Django 1.9起，异常传递给 page_not_found 当您提高 Http404 时运行的视图。将错误的表示传递给模板，您可以将其包含在模板中：

  {{exception}} 
  

在早期版本中，异常未传递给 page_not_found 视图，所以没有一个简单的方法来包含模板中的异常消息。

一种可能性是将消息框架用作@Euribates建议在他们的答案。另一个是渲染一个模板，并在你的视图中返回一个404状态代码，而不是提高 Http404 。

I have a project that I am working on in django. There are a lot of instances where I:

raise Http404("this is an error")

and it creates a nice 404 page for me with the error message "this is an error" written on it.

I now want to create a custom error page and have it still display the message, but I can't figure out how.

I'm sure it's just a template variable that I need to add to my custom 404 template, but I can't find any documentation for it.

解决方案

As of Django 1.9, the exception is passed to the page_not_found view which runs when you raise Http404. A representation of the error is passed to the template, you can include it in your template with:

{{ exception }}

In earlier versions, the exception was not passed to the page_not_found view, so there wasn't an easy way to include the message from the exception in the template.

One possibility was to use the messages framework as @Euribates suggests in their answer. Another was to render a template and return a 404 status code in your view, instead of raising Http404.

这篇关于如何在Django自定义404错误模板中显示传递给Http404的消息？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！