用于添加和更改管理员页面的不同字段 [英] different fields for add and change pages in admin

问题描述

我有一个django应用程序，在我的admin.py中有以下类：

I have a django app with the following class in my admin.py:

class SoftwareVersionAdmin(ModelAdmin):
    fields = ("product", "version_number", "description",
      "media", "relative_url", "current_version")
    list_display = ["product", "version_number", "size",
      "current_version", "number_of_clients", "percent_of_clients"]
    list_display_links = ("version_number",)
    list_filter = ['product',]

我想为添加页面添加这些文件，但是要更改页面的不同字段。如何做到这一点？

I want to have these fileds for add page but different fields for change page. How can I do that?

推荐答案

首先看看ModelAdmin类的来源 get_form 和 get_formsets 位于 django.contrib.admin.options.py 中的方法。您可以覆盖这些方法，并使用kwargs来获取所需的行为。例如：

First have a look at source of ModelAdmin class' get_form and get_formsets methods located in django.contrib.admin.options.py. You can override those methods and use kwargs to get the behavior you want. For example:

class SoftwareVersionAdmin(ModelAdmin):
    def get_form(self, request, obj=None, **kwargs):
        # Proper kwargs are form, fields, exclude, formfield_callback
        if obj: # obj is not None, so this is a change page
            kwargs['exclude'] = ['foo', 'bar',]
        else: # obj is None, so this is an add page
            kwargs['fields'] = ['foo',]
        return super(SoftwareVersionAdmin, self).get_form(request, obj, **kwargs)

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