这 filter 可能是一个 objectId 或一个 object，使用时 Model.find()，您应该明确列出要在模型中搜索的参数。 这在从查询字符串中提取过滤器参数时很重要。const testSchema = new mongoose.Schema({ name: String, location: String});const obj = { name: 'Mastering JS', location: 'Florida' };//...
mongoose.Types.ObjectId; // truedoc.testId; // '313263686172313263686172'// Similarly, Mongoose will automatically convert buffers of length 12// to ObjectIds.doc = new Model({ testId: Buffer.from('12char12char') });doc.testId instanceof mongoose.Types.ObjectId; // truedoc.testId; //...
ObjectId Array SchemaType type属性指定SchemaType类型,不同的SchemaType类型还有其他不同的属性配置 varschema2 =newSchema({test: {type:String,lowercase:true// Always convert `test` to lowercase} }); 这是所有类型公有的: required: 必选验证器。 default: 默认值。Any或function,如果该值是一个函数,则...
Mongoose 会默认生成一个虚拟值 id,指向文档的 _id 字段。 如果你不需要 id 虚拟值,可以通过这个选项禁用此功能。 option: _id Mongoose 默认给你的 Schema 赋值一个 _id。 这个值的类型是 ObjectId,这与MongoDB的默认表现一致。 如果你不需要 _id,可以通过这个选项禁用此功能。 option: strict Strict 选项默...
Using this exposed access to the ObjectId type, we can construct ids on demand. var ObjectId = mongoose.Types.ObjectId; var id1 = new ObjectId; mongoose.Query The Mongoose Query constructor.show code mongoose.Promise The Mongoose Promise constructor.show code mongoose.Model The Mongoose Model ...
Equivalent to mongoose.connection.deleteModel(name). Example: mongoose.model('User', new Schema({ name: String })); console.log(mongoose.model('User')); // Model object mongoose.deleteModel('User'); console.log(mongoose.model('User')); // undefined // Usually useful in a Mocha `afte...
owner: String, albums: [{type: mongoose.Schema.Types.ObjectId, ref: 'Album'}] }); var Library = mongoose.model('Library', librarySchema); module.exports = Library; mongose 文档可能都被转换为它们的ObjectIds。mongose 足够聪明,可以自动执行这种转换,因此将相册文档添加到albums属性将通过模式检查。
You can use mongodb'sObjectIDto convert the hex string to ObjectID before doing the query var ObjectID = require('mongodb').ObjectID; : : var id = ObjectID.createFromHexString(req.params.id); iface = Interface.findOne { _id: id } , ( err, iface )...
Convert to string failed to retrieve its worth represented by the code[object Object]located atalarms. Error-Object : kind: "string", message: "Cast to string failed for value "[object Object]" at path "alarms"", name: "CaseError", ...
ObjectId of the child document, it will be a problem when you send the child id using JSON because its a type of string instead of ObjectId and Mongoose not smart enough to automatically convert them into ObjectId . Mongoose helper has an object converter it will automatically convert all ...