class MyWorkAdmin(admin.ModelAdmin):
    list_display = ('phone_num', 'city', 'district', 'address', 'address_tag')

    actions = ['delete_selected']

    def delete_selected(self, request, obj):
        for o in obj.all():
            try:
                RealTimeData.objects.filter(phone_num=o.phone_num).delete()
            except Exception as e:
                print e.message
            o.delete()

    delete_selected.short_description = u'删除选中'

    search_fields = ('phone_num', 'district', 'address_tag')