blocks|key|847938|text|你可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|847939|var+mongoose+=+require('mongoose');
var+_id+=+mongoose.mongo.BSONPure.ObjectID.fromHexString("4eb6e7e7e9b7f4194e000001");|code-block|syntax|javascript|847940|编辑:新标准使用fromHexString而不是fromString|847941|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can do it like this:

<pre><code>var mongoose = require('mongoose');
var _id = mongoose.mongo.BSONPure.ObjectID.fromHexString("4eb6e7e7e9b7f4194e000001");
</code></pre>

EDIT: New standard has fromHexString rather than fromString

blocks|key|631501|text|你可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|631502|var+mongoose+=+require('mongoose');
var+id+=+mongoose.Types.ObjectId('4edd40c86762e0fb12000003');|code-block|syntax|javascript|631503|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can do it like so:

<pre><code>var mongoose = require('mongoose');
var id = mongoose.Types.ObjectId('4edd40c86762e0fb12000003');
</code></pre>

blocks|key|631533|text|从评论来看，你正在寻找：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|631534|mongoose.mongo.BSONPure.ObjectID.isValid|code-block|syntax|javascript|631535|或|631536|mongoose.Types.ObjectId.isValid|631537|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Judging from the comments, you are looking for:

<pre><code>mongoose.mongo.BSONPure.ObjectID.isValid
</code></pre>

Or

<pre><code>mongoose.Types.ObjectId.isValid
</code></pre>

blocks|key|631549|text|var+mongoose+=+require('mongoose');
var+_id+=+mongoose.mongo.ObjectId("4eb6e7e7e9b7f4194e000001");|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|631550|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>var mongoose = require('mongoose');
var _id = mongoose.mongo.ObjectId("4eb6e7e7e9b7f4194e000001");
</code></pre>

blocks|key|631582|text|我不能解析这个方法(诚然，我搜索的时间不长)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|631583|mongoose.mongo.BSONPure.ObjectID.fromHexString|code-block|syntax|javascript|631584|如果您的模式期望属性是ObjectId类型，那么转换就是隐式的，至少在4.7.8中是这样的。|631585|但是，您可以使用类似下面这样的代码，它可以提供更多的灵活性：|631586|function+toObjectId(ids)+{

++++if+(ids.constructor+===+Array)+{
++++++++return+ids.map(mongoose.Types.ObjectId);
++++}

++++return+mongoose.Types.ObjectId(ids);
}|631587|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|S|8|@]|9|@]|A|$E|F]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I couldn't resolve this method (admittedly I didn't search for long)

<pre><code>mongoose.mongo.BSONPure.ObjectID.fromHexString
</code></pre>

If your schema expects the property to be of type ObjectId, the conversion is implicit, at least this seems to be the case in 4.7.8.

You could use something like this however, which gives a bit more flex:

<pre><code>function toObjectId(ids) {

 if (ids.constructor === Array) {
 return ids.map(mongoose.Types.ObjectId);
 }

 return mongoose.Types.ObjectId(ids);
}
</code></pre>

blocks|key|631633|text|如果您正在通过express和mongoose实现REST+API，请参见下面的代码片段。(ADD示例)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|631634|​|631635|....
exports.AddSomething+=+(req,res,next)+=>{
++const+newSomething+=+new+SomeEntity({
+_id:new+mongoose.Types.ObjectId(),+//its+very+own+ID
++somethingName:req.body.somethingName,
++theForeignKey:+mongoose.Types.ObjectId(req.body.theForeignKey)//+if+you+want+to+pass+an+object+ID
})
}
...|code-block|syntax|javascript|631636|631637|希望能有所帮助|631638|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|P|8|@]|9|@]|A|$G|H]]|$1|I|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|R|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|M|$]]

Just see the below code snippet if you are implementing a REST API through express and mongoose. (Example for ADD)

<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>....
exports.AddSomething = (req,res,next) =&gt;{
 const newSomething = new SomeEntity({
 _id:new mongoose.Types.ObjectId(), //its very own ID
 somethingName:req.body.somethingName,
 theForeignKey: mongoose.Types.ObjectId(req.body.theForeignKey)// if you want to pass an object ID
})
}
...</code></pre>
</div>
</div>


Hope it Helps

blocks|key|631675|text|你也可以使用这个|type|unstyled|depth|inlineStyleRanges|entityRanges|data|631676|const+{+ObjectId+}+=+require('mongodb');
const+_id+=+ObjectId("4eb6e7e7e9b7f4194e000001");|code-block|syntax|javascript|631677|这是最简单的方法|631678|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can use this also

<pre><code>const { ObjectId } = require('mongodb');
const _id = ObjectId("4eb6e7e7e9b7f4194e000001");
</code></pre>

it's simplest way to do it

blocks|key|631701|text|如果您想使用模式|type|unstyled|depth|inlineStyleRanges|entityRanges|data|631702|const+yourSchemma+=+new+Schema({
"customerId":+{
++++type:+mongoose.Types.ObjectId,
++++required:+true
}|code-block|syntax|javascript|631703|})；|631704|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

If you want to use schema
<pre><code>const yourSchemma = new Schema({
&quot;customerId&quot;: {
 type: mongoose.Types.ObjectId,
 required: true
}
</code></pre>
});

Is there a function to turn a string into an objectId in node using mongoose? The schema specifies that something is an ObjectId, but when it is saved from a string, mongo tells me it is still just a string. The _id of the object, for instance, is displayed as <code>objectId("blah")</code>.

Node.js Mongoose.js string to ObjectId function

有没有使用mongoose将字符串转换为objectId in节点的函数？模式指定某物是一个ObjectId，但是当它从一个字符串中保存时，mongo告诉我它仍然只是一个字符串。例如，对象的_id显示为objectId("blah")。

问ObjectId函数的Node.js Mongoose.js字符串
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问ObjectId函数的Node.js Mongoose.js字符串EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问ObjectId函数的Node.js Mongoose.js字符串
EN