public static function init()
{
if (self::$_started) {
return;
}
$redirection_conf = sfConfig::get('app_redirection_databases', null);
if ($redirection_conf === null) {
return;
}
//Iterate over the databases configurations.
foreach ($redirection_conf as $dbName => $dbOptions) {
//Check if there are any slaves servers configured.
if ($dbOptions['slaves'] === null) {
continue;
}
foreach ($dbOptions['slaves'] as &$slave) {
foreach ($slave as &$param) {
$param = sfConfigHandler::replaceConstants($param);
}
#Symfony uses 'username' but Propel expects 'user'.
$slave['user'] = $slave['username'];
unset($slave['username']);
}
self::$_slaveConfig[$dbName] = $dbOptions['slaves'];
//Check if there is any entity that maybe be redirected to the slave.
if ($dbOptions['entities'] === null) {
continue;
}
//Iterate over the entities.
foreach ($dbOptions['entities'] as $model => $options) {
$peerClass = "{$model}Peer";
//Check if the peer exits.
if (!class_exists($peerClass)) {
continue;
}
$doSelectStmtHook = "{$peerClass}:doSelectStmt:doSelectStmt";
$doCountHook = "{$peerClass}:doCount:doCount";
//Register the interceptor function on the peer hooks.
$interceptor = array('sfPropelRedirection', 'slaveConnection');
sfMixer::register($doSelectStmtHook, $interceptor);
sfMixer::register($doCountHook, $interceptor);
//Check if the peer has conditions in order to be redirected to the slave.
if (!isset($options['conditions'])) {
continue;
}
self::$_peerOptions[$peerClass]['conditions'] = $options['conditions'];
//If there are zero conditions then we don't need to check a gen_column.
if (!isset($options['gen_column'])) {
continue;
}
$columnName = strtolower($model) . '.' . strtoupper($options['gen_column']);
//Check if the gen column really exists in the model
if (!in_array($columnName, $peerClass::getFieldNames(BasePeer::TYPE_COLNAME))) {
continue;
}
self::$_peerOptions[$peerClass]['gen_column'] = $columnName;
}
}
self::$_started = true;
}
<?php require_once dirname(__FILE__) . '\\..\\lib\\sfPropelRedirection.class.php'; sfPropelRedirection::init();