143 lines
4.8 KiB
PHP
143 lines
4.8 KiB
PHP
<?php
|
|
/**
|
|
* Table Definition for irc_waiting_message
|
|
*/
|
|
require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
|
|
|
|
class Irc_waiting_message extends Memcached_DataObject {
|
|
|
|
public $__table = 'irc_waiting_message'; // table name
|
|
public $id; // int primary_key not_null auto_increment
|
|
public $data; // blob not_null
|
|
public $prioritise; // tinyint(1) not_null
|
|
public $attempts; // int not_null
|
|
public $created; // datetime() not_null
|
|
public $claimed; // datetime()
|
|
|
|
/* Static get */
|
|
public function staticGet($k, $v = null) {
|
|
return Memcached_DataObject::staticGet('Irc_waiting_message', $k, $v);
|
|
}
|
|
|
|
/**
|
|
* return table definition for DB_DataObject
|
|
*
|
|
* DB_DataObject needs to know something about the table to manipulate
|
|
* instances. This method provides all the DB_DataObject needs to know.
|
|
*
|
|
* @return array array of column definitions
|
|
*/
|
|
public function table() {
|
|
return array('id' => DB_DATAOBJECT_INT + DB_DATAOBJECT_NOTNULL,
|
|
'data' => DB_DATAOBJECT_BLOB + DB_DATAOBJECT_STR + DB_DATAOBJECT_NOTNULL,
|
|
'prioritise' => DB_DATAOBJECT_INT + DB_DATAOBJECT_NOTNULL,
|
|
'created' => DB_DATAOBJECT_TIME + DB_DATAOBJECT_STR + DB_DATAOBJECT_NOTNULL,
|
|
'claimed' => DB_DATAOBJECT_TIME + DB_DATAOBJECT_STR);
|
|
}
|
|
|
|
/**
|
|
* return key definitions for DB_DataObject
|
|
*
|
|
* DB_DataObject needs to know about keys that the table has, since it
|
|
* won't appear in StatusNet's own keys list. In most cases, this will
|
|
* simply reference your keyTypes() function.
|
|
*
|
|
* @return array list of key field names
|
|
*/
|
|
public function keys() {
|
|
return array_keys($this->keyTypes());
|
|
}
|
|
|
|
/**
|
|
* return key definitions for Memcached_DataObject
|
|
*
|
|
* Our caching system uses the same key definitions, but uses a different
|
|
* method to get them. This key information is used to store and clear
|
|
* cached data, so be sure to list any key that will be used for static
|
|
* lookups.
|
|
*
|
|
* @return array associative array of key definitions, field name to type:
|
|
* 'K' for primary key: for compound keys, add an entry for each component;
|
|
* 'U' for unique keys: compound keys are not well supported here.
|
|
*/
|
|
public function keyTypes() {
|
|
return array('id' => 'K');
|
|
}
|
|
|
|
/**
|
|
* Magic formula for non-autoincrementing integer primary keys
|
|
*
|
|
* If a table has a single integer column as its primary key, DB_DataObject
|
|
* assumes that the column is auto-incrementing and makes a sequence table
|
|
* to do this incrementation. Since we don't need this for our class, we
|
|
* overload this method and return the magic formula that DB_DataObject needs.
|
|
*
|
|
* @return array magic three-false array that stops auto-incrementing.
|
|
*/
|
|
public function sequenceKey() {
|
|
return array(false, false, false);
|
|
}
|
|
|
|
/**
|
|
* Get the next item in the queue
|
|
*
|
|
* @return Irc_waiting_message Next message if there is one
|
|
*/
|
|
public static function top() {
|
|
$wm = new Irc_waiting_message();
|
|
|
|
$wm->orderBy('prioritise DESC, 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 IRC 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;
|
|
}
|
|
|
|
/**
|
|
* Increment the attempts count
|
|
*
|
|
* @return void
|
|
* @throws Exception
|
|
*/
|
|
public function incAttempts() {
|
|
$orig = clone($this);
|
|
$this->attempts++;
|
|
$result = $this->update($orig);
|
|
|
|
if (!$result) {
|
|
throw Exception(sprintf(_m("Could not increment attempts count for %d"), $this->id));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Release a claimed item.
|
|
*/
|
|
public function releaseClaim() {
|
|
// DB_DataObject doesn't let us save nulls right now
|
|
$sql = sprintf("UPDATE irc_waiting_message SET claimed=NULL WHERE id=%d", $this->id);
|
|
$this->query($sql);
|
|
|
|
$this->claimed = null;
|
|
$this->encache();
|
|
}
|
|
}
|