PHP - Manual: MongoCollection

2024-11-13

The MongoCollection class

(PECL mongo >=0.9.0)

简介

Represents a MongoDB collection.

Collection names can use any character in the ASCII set. Some valid collection names are "", "...", "my collection", and "*&#@".

User-defined collection names cannot contain the $ symbol. There are certain system collections which use a $ in their names (e.g., local.oplog.$main), but it is a reserved character. If you attempt to create and use a collection with a $ in the name, MongoDB will assert.

类摘要

MongoCollection {

/* 常量 */

const int ASCENDING = 1 ;

const int DESCENDING = -1 ;

/* Fields */

public MongoDB $db = NULL ;

public integer $w ;

public integer $wtimeout ;

/* 方法 */

public aggregate ( array $pipeline [, array $options ] ) : array

public aggregateCursor ( array $command [, array $options ] ) : MongoCommandCursor

public batchInsert ( array $a [, array $options = array() ] ) : mixed

public __construct ( MongoDB $db , string $name )

public count ([ array $query = array() [, int $limit = 0 [, int $skip = 0 ]]] ) : int

public createDBRef ( mixed $document_or_id ) : array

public createIndex ( array $keys [, array $options = array() ] ) : bool

public deleteIndex ( string|array $keys ) : array

public deleteIndexes ( void ) : array

public distinct ( string $key [, array $query ] ) : array

public drop ( void ) : array

public ensureIndex ( string|array $key|keys [, array $options = array() ] ) : bool

public find ([ array $query = array() [, array $fields = array() ]] ) : MongoCursor

public findAndModify ( array $query [, array $update [, array $fields [, array $options ]]] ) : array

public findOne ([ array $query = array() [, array $fields = array() [, array $options = array() ]]] ) : array

public __get ( string $name ) : MongoCollection

public getDBRef ( array $ref ) : array

public getIndexInfo ( void ) : array

public getName ( void ) : string

public getReadPreference ( void ) : array

public getSlaveOkay ( void ) : bool

public getWriteConcern ( void ) : array

public group ( mixed $keys , array $initial , MongoCode $reduce [, array $options = array() ] ) : array

public insert ( array|object $a [, array $options = array() ] ) : bool|array

public parallelCollectionScan ( int $num_cursors ) : array[MongoCommandCursor]

public remove ([ array $criteria = array() [, array $options = array() ]] ) : bool|array

public save ( array|object $document [, array $options = array() ] ) : mixed

public setReadPreference ( string $read_preference [, array $tags ] ) : bool

public setSlaveOkay ([ bool $ok = TRUE ] ) : bool

public setWriteConcern ( mixed $w [, int $wtimeout ] ) : bool

static protected toIndexString ( mixed $keys ) : string

public __toString ( void ) : string

public update ( array $criteria , array $new_object [, array $options = array() ] ) : bool|array

public validate ([ bool $scan_data = FALSE ] ) : array

}

预定义常量

MongoCollection::ASCENDING: Ascending direction for sorts and index creation.
MongoCollection::DESCENDING: Descending direction for sorts and index creation.

Fields

db: The "parent" database for this collection.
w: The number of servers to replicate a change to before returning success. Value is inherited from the parent database. The MongoDB class has a more detailed description of how w works.
wtimeout: The number of milliseconds to wait for $this->w replications to take place. Value is inherited from the parent database. The MongoDB class has a more detailed description of how wtimeout works.

参见

MongoDB core docs on » collections.

MongoCollection::aggregate — Perform an aggregation using the aggregation framework
MongoCollection::aggregateCursor — Execute an aggregation pipeline command and retrieve results through a cursor
MongoCollection::batchInsert — Inserts multiple documents into this collection
MongoCollection::__construct — 创建一个新的集合
MongoCollection::count — 返回集合中的文档数量
MongoCollection::createDBRef — 创建一个数据库引用
MongoCollection::createIndex — Creates an index on the specified field(s) if it does not already exist
MongoCollection::deleteIndex — Deletes an index from this collection
MongoCollection::deleteIndexes — 删除集合的所有索引
MongoCollection::distinct — 获取集合里指定键的不同值的列表。
MongoCollection::drop — 删除该集合
MongoCollection::ensureIndex — Creates an index on the specified field(s) if it does not already exist
MongoCollection::find — 查询该集合，并返回结果集的 MongoCursor
MongoCollection::findAndModify — Update a document and return it
MongoCollection::findOne — Queries this collection, returning a single element
MongoCollection::__get — Gets a collection
MongoCollection::getDBRef — Fetches the document pointed to by a database reference
MongoCollection::getIndexInfo — Returns information about indexes on this collection
MongoCollection::getName — 返回这个集合的名称
MongoCollection::getReadPreference — Get the read preference for this collection
MongoCollection::getSlaveOkay — Get slaveOkay setting for this collection
MongoCollection::getWriteConcern — Get the write concern for this collection
MongoCollection::group — Performs an operation similar to SQL's GROUP BY command
MongoCollection::insert — 插入文档到集合中
MongoCollection::parallelCollectionScan — Returns an array of cursors to iterator over a full collection in parallel
MongoCollection::remove — 从集合中删除记录
MongoCollection::save — 保存一个文档到集合
MongoCollection::setReadPreference — Set the read preference for this collection
MongoCollection::setSlaveOkay — Change slaveOkay setting for this collection
MongoCollection::setWriteConcern — Set the write concern for this database
MongoCollection::toIndexString — Converts keys specifying an index to its identifying string
MongoCollection::__toString — String representation of this collection
MongoCollection::update — Update records based on a given criteria
MongoCollection::validate — Validates this collection

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官方地址：https://www.php.net/manual/en/class.mongocollection.php

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The MongoCollection class

简介

类摘要

预定义常量

Fields

参见

Table of Contents

User Contributed Notes