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Mongoose ODM v5.11.15 Documentation
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Connection()

 来源:mongoosejs 浏览 293 扫码 分享 2021-02-07 09:10:49
  • Connection()
    • Parameters
    • Inherits:

    Connection()

    Parameters
    • base «Mongoose» a mongoose instance
    Inherits:
    • «NodeJS EventEmitter http://nodejs.org/api/events.html#events\_class\_events\_eventemitter»

    Connection constructor

    For practical reasons, a Connection equals a Db.

    当前内容版权归 mongoosejs 或其关联方所有，如需对内容或内容相关联开源项目进行关注与资助，请访问 mongoosejs .
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    • Quick Start
    • Guides
      • Mongoose Core Concepts
        • Schemas
        • SchemaTypes
        • Connections
        • Models
        • Documents
        • Subdocuments
        • Queries
        • Validation
        • Middleware
        • Populate
        • Discriminators
        • Plugins
        • Faster Mongoose Queries With Lean
        • Query Casting
        • findOneAndUpdate
        • Getters and Setters
        • Virtuals
      • Advanced Topics
        • Working with Dates
        • Custom Casting For Built-in Types
        • Custom SchemaTypes
      • Integrations
        • Promises
        • AWS Lambda
        • Browser Library
        • GeoJSON
        • Transactions
        • MongoDB Driver Deprecation Warnings
        • Testing with Jest
        • SSL Connections
      • Migration Guides
        • Mongoose 4.x to 5.x
        • Mongoose 3.x to 4.x
    • API
      • Mongoose
        • Mongoose()
        • Mongoose.prototype.Aggregate()
        • Mongoose.prototype.CastError()
        • Mongoose.prototype.Collection()
        • Mongoose.prototype.Connection()
        • Mongoose.prototype.Date
        • Mongoose.prototype.Decimal128
        • Mongoose.prototype.Document()
        • Mongoose.prototype.DocumentProvider()
        • Mongoose.prototype.Error()
        • Mongoose.prototype.Mixed
        • Mongoose.prototype.Model()
        • Mongoose.prototype.Mongoose()
        • Mongoose.prototype.Number
        • Mongoose.prototype.ObjectId
        • Mongoose.prototype.Promise
        • Mongoose.prototype.PromiseProvider()
        • Mongoose.prototype.Query()
        • Mongoose.prototype.STATES
        • Mongoose.prototype.Schema()
        • Mongoose.prototype.SchemaType()
        • Mongoose.prototype.SchemaTypeOptions()
        • Mongoose.prototype.SchemaTypes
        • Mongoose.prototype.Types
        • Mongoose.prototype.VirtualType()
        • Mongoose.prototype.connect()
        • Mongoose.prototype.connection
        • Mongoose.prototype.connections
        • Mongoose.prototype.createConnection()
        • Mongoose.prototype.deleteModel()
        • Mongoose.prototype.disconnect()
        • Mongoose.prototype.driver
        • Mongoose.prototype.get()
        • Mongoose.prototype.isValidObjectId()
        • Mongoose.prototype.model()
        • Mongoose.prototype.modelNames()
        • Mongoose.prototype.mongo
        • Mongoose.prototype.mquery
        • Mongoose.prototype.now()
        • Mongoose.prototype.plugin()
        • Mongoose.prototype.pluralize()
        • Currently supported options are
        • Mongoose.prototype.startSession()
        • Mongoose.prototype.version
      • Schema
        • Schema()
        • Schema.Types
        • Schema.indexTypes
        • Schema.prototype.add()
        • Schema.prototype.childSchemas
        • Schema.prototype.clone()
        • Schema.prototype.eachPath()
        • Schema.prototype.get()
        • Schema.prototype.index()
        • Schema.prototype.indexes()
        • Schema.prototype.loadClass()
        • Schema.prototype.method()
        • Schema.prototype.obj
        • Schema.prototype.path()
        • Schema.prototype.pathType()
        • Schema.prototype.paths
        • Schema.prototype.pick()
        • Schema.prototype.plugin()
        • Schema.prototype.post()
        • Schema.prototype.pre()
        • Schema.prototype.queue()
        • Schema.prototype.remove()
        • Schema.prototype.requiredPaths()
        • Schema.prototype.set()
        • Schema.prototype.static()
        • Schema.prototype.virtual()
        • Schema.prototype.virtualpath()
        • Schema.reserved
      • Connection
        • Connection()
        • Connection.prototype.client
        • Connection.prototype.close()
        • Connection.prototype.collection()
        • Connection.prototype.collections
        • Connection.prototype.config
        • Connection.prototype.createCollection()
        • Connection.prototype.db
        • Connection.prototype.deleteModel()
        • Connection.prototype.dropCollection()
        • Connection.prototype.dropDatabase()
        • Connection.prototype.get()
        • Connection.prototype.getClient()
        • Connection.prototype.host
        • Connection.prototype.id
        • Connection.prototype.model()
        • Connection.prototype.modelNames()
        • Connection.prototype.models
        • Connection.prototype.name
        • Connection.prototype.openUri()
        • Connection.prototype.pass
        • Connection.prototype.plugin()
        • Connection.prototype.plugins
        • Connection.prototype.port
        • Connection.prototype.readyState
        • Supported options include
        • Connection.prototype.setClient()
        • Connection.prototype.startSession()
        • Connection.prototype.transaction()
        • Connection.prototype.useDb()
        • Connection.prototype.user
        • The ChangeStream object is an event emitter that emits the following events
      • Document
        • Document.prototype.$ignore()
        • Document.prototype.$isDefault()
        • Document.prototype.$isDeleted()
        • Document.prototype.$isEmpty()
        • Document.prototype.$locals
        • Document.prototype.$markValid()
        • Document.prototype.$op
        • Document.prototype.$parent()
        • Document.prototype.$session()
        • Document.prototype.$set()
        • Document.prototype.depopulate()
        • Document.prototype.directModifiedPaths()
        • Document.prototype.equals()
        • Document.prototype.errors
        • Document.prototype.execPopulate()
        • Document.prototype.get()
        • Document.prototype.getChanges()
        • Document.prototype.id
        • Document.prototype.init()
        • Document.prototype.inspect()
        • Document.prototype.invalidate()
        • Document.prototype.isDirectModified()
        • Document.prototype.isDirectSelected()
        • Document.prototype.isInit()
        • Document.prototype.isModified()
        • Document.prototype.isNew
        • Document.prototype.isSelected()
        • Document.prototype.markModified()
        • Document.prototype.modifiedPaths()
        • Document.prototype.overwrite()
        • Document.prototype.parent()
        • Document.prototype.populate()
        • Document.prototype.populated()
        • Document.prototype.replaceOne()
        • Document.prototype.save()
        • Document.prototype.schema
        • Document.prototype.set()
        • Document.prototype.toJSON()
        • Note that this is behavior is different for transforms defined in the schema
        • Document.prototype.toString()
        • Document.prototype.unmarkModified()
        • Document.prototype.update()
        • Document.prototype.updateOne()
        • Document.prototype.validate()
        • Document.prototype.validateSync()
      • Model
        • Model()
        • Model.aggregate()
        • Model.bulkWrite()
        • Model.cleanIndexes()
        • Model.count()
        • Model.countDocuments()
        • Model.create()
        • Model.createCollection()
        • Model.createIndexes()
        • Model.deleteMany()
        • Model.deleteOne()
        • Model.discriminator()
        • Model.distinct()
        • Model.ensureIndexes()
        • Model.estimatedDocumentCount()
        • Model.events
        • Model.exists()
        • Model.find()
        • Model.findById()
        • Model.findByIdAndDelete()
        • Model.findByIdAndRemove()
        • Model.findByIdAndUpdate()
        • Model.findOne()
        • Model.findOneAndDelete()
        • Model.findOneAndRemove()
        • Model.findOneAndReplace()
        • Model.findOneAndUpdate()
        • Model.geoSearch()
        • Model.hydrate()
        • Model.init()
        • Model.insertMany()
        • Model.inspect()
        • Model.listIndexes()
        • Model.mapReduce()
        • Model.populate()
        • Model.prototype.$where
        • Model.prototype.$where()
        • Model.prototype.base
        • Model.prototype.baseModelName
        • Model.prototype.collection
        • Model.prototype.db
        • Model.prototype.delete
        • Model.prototype.deleteOne()
        • Model.prototype.discriminators
        • Model.prototype.model()
        • Model.prototype.modelName
        • Model.prototype.remove()
        • Model.prototype.save()
        • Model.prototype.schema
        • Model.remove()
        • Model.replaceOne()
        • Model.startSession()
        • Model.syncIndexes()
        • Model.translateAliases()
        • Model.update()
        • Model.updateMany()
        • Model.updateOne()
        • Model.validate()
        • The ChangeStream object is an event emitter that emits the following events
        • Model.where()
        • increment()
      • Query
        • Query()
        • Query.prototype.$where()
        • Query.prototype.Symbol.asyncIterator()
        • Query.prototype.all()
        • Query.prototype.and()
        • Query.prototype.batchSize()
        • Query.prototype.box()
        • Query.prototype.cast()
        • Query.prototype.catch()
        • Query.prototype.center()
        • Query.prototype.centerSphere()
        • Query.prototype.circle()
        • Query.prototype.collation()
        • Query.prototype.comment()
        • Query.prototype.count()
        • Query.prototype.countDocuments()
        • Query.prototype.cursor()
        • Query.prototype.deleteMany()
        • Query.prototype.deleteOne()
        • Query.prototype.distinct()
        • Query.prototype.elemMatch()
        • Query.prototype.equals()
        • Query.prototype.error()
        • Query.prototype.estimatedDocumentCount()
        • Query.prototype.exec()
        • Query.prototype.exists()
        • Query.prototype.explain()
        • Query.prototype.find()
        • Query.prototype.findOne()
        • Query.prototype.findOneAndDelete()
        • Query.prototype.findOneAndRemove()
        • Query.prototype.findOneAndReplace()
        • Query.prototype.findOneAndUpdate()
        • Query.prototype.geometry()
        • Query.prototype.get()
        • Query.prototype.getFilter()
        • Query.prototype.getOptions()
        • Query.prototype.getPopulatedPaths()
        • Query.prototype.getQuery()
        • Query.prototype.getUpdate()
        • Query.prototype.gt()
        • Query.prototype.gte()
        • Query.prototype.hint()
        • Query.prototype.in()
        • Query.prototype.intersects()
        • This option is only valid for operations that write to the database
        • Query.prototype.lean()
        • Query.prototype.limit()
        • Query.prototype.lt()
        • Query.prototype.lte()
        • Query.prototype.map()
        • Query.prototype.maxDistance()
        • Query.prototype.maxScan()
        • Query.prototype.maxTimeMS()
        • Query.prototype.maxscan()
        • Query.prototype.merge()
        • Query.prototype.mod()
        • Query.prototype.mongooseOptions()
        • Query.prototype.ne()
        • Query.prototype.near()
        • Query.prototype.nearSphere()
        • Query.prototype.nin()
        • Query.prototype.nor()
        • Query.prototype.or()
        • Query.prototype.orFail()
        • Query.prototype.polygon()
        • Query.prototype.populate()
        • Query.prototype.projection()
        • Query.prototype.read()
        • Query.prototype.readConcern()
        • Query.prototype.regex()
        • Query.prototype.remove()
        • Query.prototype.replaceOne()
        • Query.prototype.select()
        • Query.prototype.selected()
        • Query.prototype.selectedExclusively()
        • Query.prototype.selectedInclusively()
        • Query.prototype.session()
        • Query.prototype.set()
        • The following options are for all operations
        • Query.prototype.setQuery()
        • Query.prototype.setUpdate()
        • Query.prototype.size()
        • Query.prototype.skip()
        • Query.prototype.slaveOk()
        • Query.prototype.slice()
        • Query.prototype.snapshot()
        • Query.prototype.sort()
        • Query.prototype.tailable()
        • Query.prototype.then()
        • Query.prototype.toConstructor()
        • Query.prototype.update()
        • Query.prototype.updateMany()
        • Query.prototype.updateOne()
        • Query.prototype.use$geoWithin
        • This option is only valid for operations that write to the database
        • Query.prototype.where()
        • Query.prototype.within()
        • This option is only valid for operations that write to the database
      • QueryCursor
      • Aggregate
        • Aggregate()
        • Aggregate.prototype.Symbol.asyncIterator()
        • Aggregate.prototype.addCursorFlag
        • Aggregate.prototype.addFields()
        • Aggregate.prototype.allowDiskUse()
        • Aggregate.prototype.append()
        • Aggregate.prototype.catch()
        • Aggregate.prototype.collation()
        • Aggregate.prototype.count()
        • Aggregate.prototype.cursor()
        • Aggregate.prototype.exec()
        • Aggregate.prototype.explain()
        • Aggregate.prototype.facet()
        • Aggregate.prototype.graphLookup()
        • Aggregate.prototype.group()
        • Aggregate.prototype.hint()
        • Aggregate.prototype.limit()
        • Aggregate.prototype.lookup()
        • Aggregate.prototype.match()
        • Aggregate.prototype.model()
        • Aggregate.prototype.near()
        • Aggregate.prototype.option()
        • Supported options are
        • Aggregate.prototype.pipeline()
        • Aggregate.prototype.project()
        • Aggregate.prototype.read()
        • Aggregate.prototype.readConcern()
        • Aggregate.prototype.redact()
        • Aggregate.prototype.replaceRoot()
        • Aggregate.prototype.sample()
        • Aggregate.prototype.search()
        • Aggregate.prototype.session()
        • Aggregate.prototype.skip()
        • Aggregate.prototype.sort()
        • Aggregate.prototype.sortByCount()
        • Aggregate.prototype.then()
        • Aggregate.prototype.unwind()
      • AggregationCursor
      • Schematype
        • SchemaType()
        • SchemaType.cast()
        • SchemaType.cast()
        • SchemaType.checkRequired()
        • SchemaType.get()
        • SchemaType.prototype.default()
        • SchemaType.prototype.get()
        • SchemaType.prototype.immutable()
        • SchemaType.prototype.index()
        • SchemaType.prototype.ref()
        • SchemaType.prototype.required()
        • SchemaType.prototype.select()
        • SchemaType.prototype.set()
        • SchemaType.prototype.sparse()
        • SchemaType.prototype.text()
        • Example:
        • SchemaType.prototype.transform()
        • SchemaType.prototype.unique()
        • SchemaType.prototype.validate()
        • SchemaType.set()
      • Virtualtype
      • Error
      • Array
      • DocumentArrayPath
      • SingleNestedPath
    • Version Compatibility
    • FAQ
    • Further Reading
    • For Enterprise
    • Built with Mongoose
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