Change list link to foreign key change page

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盖世英雄少女心
盖世英雄少女心 2020-12-20 11:58

When viewing the admin change list for a model, is it possible to make the columns that correspond to foreign keys links to their respective pages? A simple example is I ha

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  •  盖世英雄少女心
    2020-12-20 12:13

    You can define a custom method to use in the changelist which returns the HTML of the link.

    from django.core.urlresolvers import reverse
    
    class MyFooAdmin(admin.ModelAdmin):
        list_display = ('foo', 'bar_link')
    
        def bar_link(self, obj):
            url = reverse('admin:myapp_bar_change', args=(obj.pk,))
            return 'Edit Bar' % url 
        bar_link.allow_tags = True 
    

    One problem with your question as stated - if Foo has a foreign key to Bar, then each foo links to a single bar, so you can link to the edit page for that bar. However, each bar links to multiple foos, so it doesn't make sense to ask for a link to 'the Foo instance's edit page'. What you can do is link to the changelist page for Foo with the filter set to only show the instances that link to this Bar:

        def foo_link(self, obj):
            url = reverse('admin:myapp_foo_changelist')
            return 'See Foos' % (url, obj.pk) 
        foo_link.allow_tags = True 
    

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