The MongoCollection class

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简介

Representations a database 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 mixed batchInsert ( array $a [, array $options = array() ] )

public __construct ( MongoDB $db , string $name )

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

public array createDBRef ( array $a )

public array deleteIndex ( string|array $keys )

public array deleteIndexes ( void )

public array drop ( void )

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

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

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

public MongoCollection __get ( string $name )

public array getDBRef ( array $ref )

public array getIndexInfo ( void )

public string getName ( void )

public bool getSlaveOkay ( void )

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

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

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

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

public bool setSlaveOkay ([ bool $ok = true ] )

static protected string toIndexString ( mixed $keys )

public string __toString ( void )

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

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

}

预定义常量

MongoCollection::ASCENDING
1: Ascending direction for sorts and index creation.
MongoCollection::DESCENDING
-1: 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::batchInsert — Inserts multiple documents into this collection
MongoCollection::__construct — Creates a new collection
MongoCollection::count — Counts the number of documents in this collection
MongoCollection::createDBRef — Creates a database reference
MongoCollection::deleteIndex — Deletes an index from this collection
MongoCollection::deleteIndexes — Delete all indices for this collection
MongoCollection::drop — Drops this collection
MongoCollection::ensureIndex — Creates an index on the given field(s), or does nothing if the index already exists
MongoCollection::find — Querys this collection, returning a MongoCursor for the result set
MongoCollection::findOne — Querys 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 — Returns this collection's name
MongoCollection::getSlaveOkay — Get slaveOkay setting for this collection
MongoCollection::group — Performs an operation similar to SQL's GROUP BY command
MongoCollection::insert — Inserts an array into the collection
MongoCollection::remove — Remove records from this collection
MongoCollection::save — Saves an object to this collection
MongoCollection::setSlaveOkay — Change slaveOkay setting for this collection
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

The MongoCollection class

简介

类摘要

预定义常量

Fields

参见

Table of Contents