xadmin如何在一个model的新增或编辑页面里面内嵌另一个model的编辑页面

from .models import Case, Ioc, FileAttachment
class IocInline:
    model = Ioc
    extra = 0

class FileAttachmentInline:
    model = FileAttachment
    extra = 0

class CaseForm(ModelForm):
  # 自定义widgets
    tags = SimpleArrayField(CharField(), widget=Select2Widget, required=False)
    
class CaseAdmin:
    list_display = ["name", "happen_datetime", "TLP", "tags", "len_ioc", "len_file", "update_user", "update_time"]
    search_fields = ["name", "TLP", "tags", "update_user"]
    list_filter = ["name", "happen_datetime", "TLP", "update_user", "update_time"]
    # 因为自定义了widgets 所以设置了form属性
    form = CaseForm

    # 在同一编辑界面,内联IOC编辑
    inlines = [IocInline, FileAttachmentInline]
    list_export = []