在管理员中添加和更改页面的不同字段

Question

我在admin.py中有一个带有以下类的django应用程序：

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',]

我想将这些文件用于添加页面，但将不同的字段用于更改页面。我怎样才能做到这一点？

Answer 1

首先看一下ModelAdmin类的源代码get_form和get_formsets位于中的方法django.contrib.admin.options.py。您可以覆盖这些方法，并使用kwargs获得所需的行为。例如：

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)