/**
* @method add a message to a thread.
* @param $MSG the message
* @param string subject of the message
* @param string text/body of the message
* @param date date of the message
* @param number $threadId the thread id to add msg
*/
public function addMessage($subject, $text, $date, $threadId)
{
$this->pdo->beginTransaction();
$msgId = $this->getNextVal(self::$SEQ_MSG_ID);
$sql = $this->getQuery('INSERT INTO ' . self::$SCHEMA . '.MSG ("ID", "Subject", "Text", "Date", "Thread_ID") VALUES (' . $msgId . ', ?, ?, ?, ' . $threadId . ')');
$stmt = $this->pdo->prepare($sql);
$this->executeQueryRollbackOnException($stmt, array($subject, $text, $date));
$sql = $this->getQuery('INSERT INTO ' . self::$SCHEMA . '.MSG_BOX ("MSG_ID", "To_User_ID", "From_User_ID", "Status") VALUES (' . $msgId . ', ?, ?, ?)');
$stmt = $this->pdo->prepare($sql);
$this->executeQueryRollbackOnException($stmt, array($this->getConversationPartner($threadId), $this->userId, self::$NOT_READED));
$this->pdo->commit();
}
/**
* 开始事务
*/
public function beginTrans()
{
$this->pdo->beginTransaction();
}
<?php
$db = new pdo('sqlite::memory:');
$db->beginTransaction();
$db->query('CREATE TABLE IF NOT EXISTS foobar (id INT AUTO INCREMENT, name TEXT)');
$db->commit();
$db->beginTransaction();
$db->query('INSERT INTO foobar VALUES (NULL, "PHP")');
$db->query('INSERT INTO foobar VALUES (NULL, "PHP6")');
$db->rollback();
$r = $db->query('SELECT COUNT(*) FROM foobar');
var_dump($r->rowCount());
$db->query('DROP TABLE foobar');
