我正在尝试过滤django admin内联中的Foreignkey字段中显示的选项。因此,我想访问正在编辑的父对象。我一直在研究,但找不到任何解决方案。
class ProjectGroupMembershipInline(admin.StackedInline):
model = ProjectGroupMembership
extra = 1
formset = ProjectGroupMembershipInlineFormSet
form = ProjectGroupMembershipInlineForm
def formfield_for_foreignkey(self, db_field, request=None, **kwargs):
if db_field.name == 'group':
kwargs['queryset'] = Group.objects.filter(some_filtering_here=object_being_edited)
return super(ProjectGroupMembershipInline, self).formfield_for_foreignkey(db_field, request, **kwargs)
我已验证在编辑对象时kwargs为空,因此无法从那里获取对象。
有什么帮助吗?谢谢
最佳答案
为了过滤admin内联中可用于外键字段的选项,我覆盖了表单,以便可以更新表单字段的queryset
属性。这样,您就可以访问self.instance
,它是表单中正在编辑的对象。所以像这样:
class ProjectGroupMembershipInlineForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super(ProjectGroupMembershipInlineForm, self).__init__(*args, **kwargs)
self.fields['group'].queryset = Group.objects.filter(some_filtering_here=self.instance)
如果执行上述操作,则无需使用
formfield_for_foreignkey
,它就可以完成您所描述的内容。关于python - django admin内联: get object from formfield_for_foreignkey,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/21337142/