Django Admin：如何访问admin.py中的请求对象，对于list_display方法？ [英] Django Admin: How to access the request object in admin.py, for list_display methods?

问题描述

我已经在模型的admin.py类中添加了一个方法highlight_link：

I've added a method 'highlight_link' to my model's admin.py class:

class RadioGridAdmin(admin.ModelAdmin):

    list_display = ('start_time', highlight_link)

    def highlight_link(self):
        return ('some custom link')


admin.site.register(RadioGrid, RadioGridAdmin)

它返回一个自定义链接（我简短地省略了highlight_link.short_description）每个记录在更改列表中返回。哪个是伟大的但是，我想检查当前的查询字符串，并根据这一点更改自定义链接。有没有办法在highlight_link内访问Request对象？

It returns a custom link for (I've left out highlight_link.short_description for brevity) each record returned in the change list. Which is great. But I'd like to inspect the current query string and change the custom link based on that. Is there a way to access the Request object within 'highlight_link'?

推荐答案

我尝试了这里的其他答案，遇到了对我来说越来越复杂的问题。我用 def __call __（）玩弄，并提出了以下几点。这可能不是正确的方法，但它的工作原理...

I tried the other answers left here and ran into issues that for me, were getting complex. I played around with def __call__() and came up with the following. This probably isn't the correct way to do this, but it works...

在这里抓取GET变量（所有在类RadioGridAdmin内，如上所述在我的最初的帖子）：
全局start_date
start_date =请求。

$ b

grab the GET variable here (all within class RadioGridAdmin as described above in my initial post):

def __call__(self, request, url):
     global start_date
     start_date = request.GET['param']

     return super(RadioGridAdmin, self).__call__(request, url)

，因为它是全球的，你现在可以在这里访问：

and since it's global, you can now access it here:

def highlight_link(self):
    # access start_date here

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