gnu-social/plugins/Msn/classes/msn_waiting_message.php
Mikael Nordfeldth de55d8f83b plugins onAutoload now only overloads if necessary (extlibs etc.)
lib/plugin.php now has a parent onAutoload function that finds most common
files that are used in plugins (actions, dataobjects, forms, libs etc.) if
they are put in the standardised directories ('actions', 'classes', 'forms',
'lib' and perhaps some others in the future).
2013-08-28 16:10:30 +02:00

88 lines
3.4 KiB
PHP

<?php
/**
* Table Definition for msn_waiting_message
*/
require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
class Msn_waiting_message extends Managed_DataObject {
public $__table = 'msn_waiting_message'; // table name
public $id; // int primary_key not_null auto_increment
public $screenname; // varchar(255) not_null
public $message; // text not_null
public $claimed; // datetime()
public $created; // datetime() not_null
public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
public static function schemaDef()
{
return array(
'fields' => array(
'id' => array('type' => 'serial', 'not null' => true, 'description' => 'Unique ID for entry'),
'screenname' => array('type' => 'varchar', 'length' => 255, 'description' => 'from screenname'),
'message' => array('type' => 'text', 'not null' => true, 'description' => 'MSN message text'),
'claimed' => array('type' => 'datetime', 'description' => 'date this irc message was claimed'),
'created' => array('type' => 'datetime', 'not null' => true, 'description' => 'date this record was created'),
'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
),
'primary key' => array('id'),
'indexes' => array(
'msn_waiting_message_prioritise_idx' => array('screenname'),
),
);
}
/**
* @param string $screenname screenname or array of screennames to pull from
* If not specified, checks all queues in the system.
*/
public static function top($screenname = null) {
$wm = new Msn_waiting_message();
if ($screenname) {
if (is_array($screenname)) {
// @fixme use safer escaping
$list = implode("','", array_map('addslashes', $screenname));
$wm->whereAdd("screenname in ('$list')");
} else {
$wm->screenname = $screenname;
}
}
$wm->orderBy('created');
$wm->whereAdd('claimed is null');
$wm->limit(1);
$cnt = $wm->find(true);
if ($cnt) {
// XXX: potential race condition
// can we force it to only update if claimed is still null
// (or old)?
common_log(LOG_INFO, 'claiming msn waiting message id = ' . $wm->id);
$orig = clone($wm);
$wm->claimed = common_sql_now();
$result = $wm->update($orig);
if ($result) {
common_log(LOG_INFO, 'claim succeeded.');
return $wm;
} else {
common_log(LOG_INFO, 'claim failed.');
}
}
$wm = null;
return null;
}
/**
* Release a claimed item.
*/
public function releaseClaim() {
// DB_DataObject doesn't let us save nulls right now
$sql = sprintf("UPDATE msn_waiting_message SET claimed=NULL WHERE id=%d", $this->id);
$this->query($sql);
$this->claimed = null;
$this->encache();
}
}