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The MongoCollection class


The MongoCollection class

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Introduction

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.

Class synopsis

MongoCollection {
/* Constants */
const int ASCENDING = 1 ;
const int DESCENDING = -1 ;
/* Fields */
public MongoDB $db = NULL ;
public integer $w ;
public integer $wtimeout ;
/* Methods */
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 ] )
}

Predefined Constants

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.

See Also

MongoDB core docs on » collections.

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