下面是我编写的函数,它将会话文档中某个成员的members嵌入文档的“new_messages”标志设置为true。在
def check_and_update_new_messages_flag(self, pk, user):
conversation = Conversation.objects.with_id(pk)
if conversation is None:
raise ConversationNotFoundException
messages = Message.objects(conversation=pk).count()
messages_viewed_by_user = Message.objects(conversation=pk, viewed_by=user).count()
if messages == messages_viewed_by_user:
for index, member in enumerate(conversation.members):
if member.user == user:
member = Members()
member.user = user
conversation.members[index] = member
conversation.save()
conversation.update()
我正在创建一个Members对象并替换匹配发生的索引处的Members对象,只是为了将新的\u messages标志更新为false(在模型中设置为默认值)。是否有更好的查询来执行此任务。我不需要额外的循环和if语句来提高这个函数的效率。在
编辑: 模型:
^{pr2}$另外,示例文档:
{
"_id" : ObjectId("55c37053aee967157371372e"),
"opportunity" : ObjectId("55a3907c8c5bf672f4ad31b8"),
"members" : [
{
"user" : ObjectId("5579a6b38c5bf602374b9a0b"),
"new_messages" : true
},
{
"user" : ObjectId("abcdef12345abcdef1234503"),
"new_messages" : true
},
{
"user" : ObjectId("5581168c45910c43912e6a01"),
"new_messages" : true
}
],
"counts" : {
"members" : 3,
"messages" : 6
},
"status" : "active",
"responded_on" : NumberLong(1438871635000),
"created_by" : ObjectId("abcdef12345abcdef1234503"),
"updated_at" : NumberLong(1439194817000)
}
目前没有回答
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