猫鼬模式:“独特"不被尊重 [英] Mongoose schema: 'unique' not being respected
问题描述
我正在尝试将 Mongoose 与此架构一起使用
I'm trying to use Mongoose with this schema
var RestoSchema = new Schema({
"qname" : {type: String, required: true, unique: true},
...
});
问题是这仍然允许使用现有的 qname
创建数据库的新条目.从我在下面看到的索引已经创建,但是当我使用 .save
方法时没有任何明显的影响.我有什么误解?
The problem is that this still permits new entries to the database to be created with an existing qname
. From what i can see below the index has been created, but without any demonstrable impact when I use the .save
method. What am I misunderstanding?
> db.restos.getIndexes()
[
{
"v" : 1,
"key" : {
"_id" : 1
},
"ns" : "af.restos",
"name" : "_id_"
},
{
"v" : 1,
"key" : {
"qname" : 1
},
"ns" : "af.restos",
"name" : "qname_1",
"background" : true,
"safe" : null
}
]
推荐答案
getIndexes
输出显示 qname
上的索引不是作为唯一索引创建的.Mongoose 不会更改现有索引,因此您必须手动删除该索引,然后重新启动您的应用,以便 Mongoose 可以将其重新创建为唯一的.
The getIndexes
output shows that the index on qname
wasn't created as a unique index. Mongoose doesn't alter an existing index, so you'll have to manually drop the index and then restart your app so that Mongoose can re-create it as unique.
在外壳中:
db.restos.dropIndex('qname_1')
这篇关于猫鼬模式:“独特"不被尊重的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!