GoLang MongoCursor::doQuery

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PHP MongoCursor::doQuery

PHP original manual for MongoCursor::doQuery [ show | php.net ]

MongoCursor::doQuery

(PECL mongo >=0.9.0 <1.6.0)

MongoCursor::doQuery — Execute the query

Description

protected void MongoCursor::doQuery ( void )

Warning

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).

Parameters

This function has no parameters.

Return Values

NULL.

Errors/Exceptions

Throws MongoConnectionException if it cannot reach the database.

Changelog

Version	Description
1.2.11	Emits `E_DEPRECATED` when used.

Examples

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();
        }
    }
}

?>

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