Django admin - 如何在templatetag中获取所有注册的模型？

Question

我正在编写自定义管理员资料,需要在管理员中获取所有已注册的模型.这可能吗？我需要它在管理员索引页面上制作一些自定义视图.

Answer 1

您可以访问admin.site._registryModel-> ModelAdmin的dict:

>>> ./manage.py shell

In [1]: from urls import * # load admin

In [2]: from django.contrib import admin

In [3]: admin.site._registry
Out[3]: 
{django.contrib.auth.models.Group: <django.contrib.auth.admin.GroupAdmin at 0x22629d0>,
 django.contrib.auth.models.User: <django.contrib.auth.admin.UserAdmin at 0x2262a10>,
 django.contrib.sites.models.Site: <django.contrib.sites.admin.SiteAdmin at 0x2262c90>,
 testapp.models.Up: <django.contrib.admin.options.ModelAdmin at 0x2269c10>,
 nashvegas.models.Migration: <nashvegas.admin.MigrationAdmin at 0x2262ad0>}

这是管理员索引视图的作用:

@never_cache
def index(self, request, extra_context=None):
    """ 
    Displays the main admin index page, which lists all of the installed
    apps that have been registered in this site.
    """
    app_dict = {}
    user = request.user
    for model, model_admin in self._registry.items():
        # ...

请注意,前缀为下划线的变量可能会在未来版本的django中发生变化.