小心，
self.model._meta.fields不一定与CustomAdmin具有相同的字段！
“管理员的所有字段”看起来像这样：
from django.contrib import adminfrom django.contrib.admin.utils import flatten_fieldsetsclass CustomAdmin(admin.ModelAdmin): def get_readonly_fields(self, request, obj=None): if request.user.is_superuser: return self.readonly_fields if self.declared_fieldsets: return flatten_fieldsets(self.declared_fieldsets) else: return list(set( [field.name for field in self.opts.local_fields] + [field.name for field in self.opts.local_many_to_many] ))
