MongoCursor::doQuery

(PECL mongo >=0.9.0 <1.6.0)

MongoCursor::doQueryExecute the query

Descrierea

protected MongoCursor::doQuery ( void ) : void
Avertizare

Please do not use me.

This function actually queries the database. All queries and commands go through this function. Thus, this function can be overridden to provide custom query handling.

This handles serializing your query, sending it to the database, receiving a response, and deserializing it. Thus, if you are planning to override this, your code should probably call out to the original to use the existing functionality (see the example below).

Parametri

Această funcție nu are parametri.

Valorile întoarse

NULL.

Erori/Excepții

Throws MongoConnectionException if it cannot reach the database.

Istoricul schimbărilor

Versiune Descriere
1.2.11 Emits E_DEPRECATED when used.

Exemple

Example #1 MongoCursor::doQuery() example

You could override this function to attempt a query on a secondary and, if that fails, try it again on the primary.

<?php

class MyCursor extends MongoCursor {

    protected function 
doQuery() {

        
$this->slaveOkay();

        try {
            
MongoCursor::doQuery();
        }
        catch(
MongoCursorException $e) {
            
$this->slaveOkay(false);
            
MongoCursor::doQuery();
        }
    }
}

?>