Django：如果已覆盖管理模板，则无法覆盖它们？ [英] Django: Can't override admin templates when they are already overridden?

问题描述

要向模型的Django管理视图中添加一些内容，我想覆盖 change_form.html 模板。根据文档，我需要在文件夹 / project-path / templates / admin / appname / modelname / 中创建文件 change_form.html 。当然，我需要确保在 TEMPLATE_DIRS 中也可以使用此路径。这样的文件可能看起来像这样：

To add some content to a Django admin view of a model, I want to override the change_form.html template. According to the documentation I would need to create a file change_form.html in a the folder /project-path/templates/admin/appname/modelname/. Of course I need to make sure, that this path is also available in TEMPLATE_DIRS. Such a file could look like this:

{% extends "admin/change_form.html" %}
{% load i18n  %}

{% block after_field_sets %}
SOME CONTENT
{% endblock %}

但是，我使用了 django-guardian 具有对象权限。这个Django应用程式也会覆写 change_form.html （运作良好-相关来源似乎是此处），但Django不会选择我的模板扩展文件（即，上述示例中的 SOME CONTENT未显示） ）。我要覆盖的块/部分不是与django-guardian覆盖的块/部分相同，最终我想在 change_form.html 中添加其他内容django-guardion 和我的模板。

However, I make use of django-guardian to have object permissions. This Django app overrides change_form.html as well (which works fine -- relevant source seems to be here), but Django doesn't pick up my template extension file (i.e. "SOME CONTENT" from the sample above isn't displayed). The blocks/parts I want to override are not the same ones that django-guardian overrides and eventually I want to have the additions to change_form.html of django-guardion and of my template.

我在这里做什么错了？

What am I doing wrong here? And is possible at all to have multiple applications overriding an admin template?

如果有兴趣，那么这就是我的 TEMPLATE_LOADERS 设置：

If it is of interest, this is my TEMPLATE_LOADERS setting:

TEMPLATE_LOADERS = (
    'django.template.loaders.filesystem.Loader',
    'django.template.loaders.app_directories.Loader'
)

另外，django- Guardian是 INSTALLED_APPS 数组中的最后一个应用。

Also, django-guardian is the last app in the INSTALLED_APPS array.

推荐答案

一个解决方案似乎是通过引用并覆盖django-guardian的模板（定义此处），而不是Django的常规 change_form.html 。因此，不要使用

One possible solution seems to be to explicitly define the inheritance chain by referring to and overriding django-guardian's template (defined here) and not Django's general change_form.html. So instead of using

{% extends "admin/change_form.html" %}

在自定义模板的开头，我需要使用

in the beginning of my custom template, I would need to use

{% extends "admin/guardian/model/change_form.html" %}

此外，我还需要扩展 GuardedModelAdmin 子类模型，以明确使用我自己的模板文件作为更改表单模板：

Also I would need to extend my GuardedModelAdmin sub-class model to explicitly use my own template file as the change form template:

class MyModel(GuardedModelAdmin):
    change_form_template = 'admin/appname/mymodel/change_form.html'

这是可行的，但是它为模板和模型增加了明显的依赖性。当然，该模型仍然具有这种依赖性，但是如果还有一种解决方案仅涉及默认的 change_form.html ，我将很感兴趣-但是，我怀疑这真的不可能。

This works, but it adds a clear dependency to the template and the model. Of course, the model has this dependency anyway, but I would be interested if there is also a solution that refers only to the default change_form.html -- however, I suspect that this is not really possible.

这篇关于Django：如果已覆盖管理模板，则无法覆盖它们？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！