MongoCursor
PHP Manual

MongoCursor::doQuery

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MongoCursor::doQueryExecute the query.

Descripción

protected void MongoCursor::doQuery ( void )

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).

Parámetros

Esta función no tiene parámetros.

Valores devueltos

NULL.

Errores/Excepciones

Throws MongoConnectionException if it cannot reach the database.

Historial de cambios

Versión Descripción
1.2.11 Emits E_DEPRECATED when used.

Ejemplos

Ejemplo #1 MongoCursor::doQuery() example

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

<?php

class MyCursor extends MongoCursor {

    protected function 
doQuery() {

        
$this->slaveOkay();

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

?>


MongoCursor
PHP Manual