mirror of
https://github.com/moodle/moodle.git
synced 2025-08-05 00:46:50 +02:00
53 lines
1.3 KiB
PHP
53 lines
1.3 KiB
PHP
<?php //$Id$
|
|
|
|
/**
|
|
* Abstract class for resultsets returned from database functions.
|
|
* This is a simple Iterator with needed recorset closing support.
|
|
*
|
|
* The difference from old recorset is that the records are returned
|
|
* as objects, not arrays. You should use "foreach ($recordset as $record) {}"
|
|
* followed by "$recordset->close()".
|
|
*
|
|
* Do not forget to close all recordsets when they are not needed anymore!
|
|
*/
|
|
abstract class moodle_recordset implements Iterator {
|
|
|
|
/**
|
|
* Returns current record - fields as object properties, lowercase
|
|
* @return object
|
|
*/
|
|
//public abstract function current();
|
|
|
|
/**
|
|
* Returns the key of current row
|
|
* @return int current row
|
|
*/
|
|
//public abstract function key();
|
|
|
|
/**
|
|
* Moves forward to next row
|
|
* @return void
|
|
*/
|
|
//public abstract function next();
|
|
|
|
/**
|
|
* Revinds are not supported!
|
|
* @return void
|
|
*/
|
|
public function rewind() {
|
|
// no seeking, sorry - let's ignore it ;-)
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* Did we reach the end?
|
|
* @return boolean
|
|
*/
|
|
//public abstract function valid();
|
|
|
|
/**
|
|
* Free resources and connections, recordset can not be used anymore.
|
|
* @return void
|
|
*/
|
|
public abstract function close();
|
|
}
|