public function testTransactions()
{
$this->assertEquals(0, $this->db->Execute('CREATE TABLE IF NOT EXISTS t_test (id INT NOT NULL PRIMARY KEY) ENGINE=InnoDB'));
$this->assertEquals(0, $this->db->Execute('TRUNCATE TABLE t_test'));
$this->assertEquals(0, $this->db->StartTrans());
$this->assertTrue($this->db->Execute('INSERT INTO t_test VALUES(1)'));
$this->assertEquals(0, $this->db->StartTrans());
$this->assertTrue($this->db->Execute('INSERT INTO t_test VALUES(2)'));
$this->assertEquals(array(array('id' => 1), array('id' => 2)), $this->db->FetchMode('ASSOC')->GetAll('SELECT * FROM t_test'));
$this->assertEquals(0, $this->db->StartTrans());
$this->assertTrue($this->db->Execute('INSERT INTO t_test VALUES(3)'));
$this->assertEquals(array(array('id' => 1), array('id' => 2), array('id' => 3)), $this->db->FetchMode('ASSOC')->GetAll('SELECT * FROM t_test'));
$this->assertEquals(0, $this->db->StartTrans());
$this->assertTrue($this->db->Execute('INSERT INTO t_test VALUES(7)'));
$this->assertEquals(array(array('id' => 1), array('id' => 2), array('id' => 3), array('id' => 7)), $this->db->FetchMode('ASSOC')->GetAll('SELECT * FROM t_test'));
$this->assertEquals(0, $this->db->RollBackTrans());
$this->assertTrue($this->db->CompleteTrans());
$this->assertTrue($this->db->CompleteTrans());
$this->assertTrue($this->db->CompleteTrans());
$this->assertEquals(array(array('id' => 1), array('id' => 2), array('id' => 3)), $this->db->FetchMode('ASSOC')->GetAll('SELECT * FROM t_test'));
}
echo "In process: 2", PHP_EOL;
$db = new DALMP\Database("utf8://{$user}:{$password}@{$host}:{$port}/dalmp");
$db->StartTrans();
$credit = $db->PGetOne('SELECT credit FROM t_test2 WHERE id=? FOR UPDATE', 1);
if ($credit > 0) {
$db->PExecute('UPDATE t_test2 SET credit=credit - ? WHERE id = ?', 100, 1);
}
echo "process {$i} credit: ", $db->PGetOne('SELECT credit FROM t_test2'), PHP_EOL;
$rs = $db->CompleteTrans();
echo 'Transaction returned: ', (bool) $rs, PHP_EOL;
exit($i);
break;
case 3:
echo "In process: 3", PHP_EOL;
$db = new DALMP\Database("utf8://{$user}:{$password}@{$host}:{$port}/dalmp");
$db->StartTrans();
$credit = $db->PGetOne('SELECT credit FROM t_test2 WHERE id=? FOR UPDATE', 1);
if ($credit > 0) {
$db->PExecute('UPDATE t_test2 SET credit=credit - ? WHERE id = ?', 100, 1);
}
echo "process {$i} credit: ", $db->PGetOne('SELECT credit FROM t_test2'), PHP_EOL;
$rs = $db->CompleteTrans();
echo 'Transaction returned: ', (bool) $rs, PHP_EOL;
exit($i);
}
}
}
while (pcntl_waitpid(0, $status) != -1) {
$status = pcntl_wexitstatus($status);
echo "Child {$status} completed", PHP_EOL;
}
