Zend PDO error - how can I debug it?

Question

I have a weird problem using Zend Framework and Mysql. I generated a query:

SELECT events.idUser, szForename, szLastname, readers.szName, idZoneFrom, events.dtTime FROM events, users, readers WHERE events.idUser = users.idUser AND events.idReader = readers.idReader AND dtTime >= '2010:02:15 0:00:00' AND dtTime < '2010:02:16 0:00:00' ORDER BY dtTime

The query works ok if I run it in some console like pma, navicat or shell client but when I try to run it using a model that extends Zend_Db_Table by commend

$arResult = $this->getDefaultAdapter()->query($szQuery)->fetchAll();

it goes with 1064 error:

enter code here

An error occurred
Application error
Exception information:

Message: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
Stack trace:

#0 C:\xampp\htdocs\projekty\doors2\library\Zend\Db\Statement.php(300): Zend_Db_Statement_Pdo->_execute(Array)
#1 C:\xampp\htdocs\projekty\doors2\library\Zend\Db\Adapter\Abstract.php(468): Zend_Db_Statement->execute(Array)
#2 C:\xampp\htdocs\projekty\doors2\library\Zend\Db\Adapter\Pdo\Abstract.php(238): Zend_Db_Adapter_Abstract->query('SELECT zoneName...', Array)
#3 C:\xampp\htdocs\projekty\doors2\application\models\Zones.php(24): Zend_Db_Adapter_Pdo_Abstract->query('SELECT zoneName...')
#4 C:\xampp\htdocs\projekty\doors2\application\models\Events.php(87): Application_Model_Zones->getZoneInfo(NULL)
#5 C:\xampp\htdocs\projekty\doors2\application\controllers\IndexController.php(52): Application_Model_Events->getEventsList(NULL, '02/15/2010')
#6 C:\xampp\htdocs\projekty\doors2\library\Zend\Controller\Action.php(513): IndexController->eventsAction()
#7 C:\xampp\htdocs\projekty\doors2\library\Zend\Controller\Dispatcher\Standard.php(295): Zend_Controller_Action->dispatch('eventsAction')
#8 C:\xampp\htdocs\projekty\doors2\library\Zend\Controller\Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#9 C:\xampp\htdocs\projekty\doors2\library\Zend\Application\Bootstrap\Bootstrap.php(97): Zend_Controller_Front->dispatch()
#10 C:\xampp\htdocs\projekty\doors2\library\Zend\Application.php(366): Zend_Application_Bootstrap_Bootstrap->run()
#11 C:\xampp\htdocs\projekty\doors2\public\index.php(26): Zend_Application->run()
#12 {main}  

Request Parameters:

array (
  'controller' => 'index',
  'action' => 'events',
  'module' => 'default',
  'idUser' => '0',
  'dt' => '02/15/2010',
)  

How can I debug it to find the problem?? Or maybe you know what could I have done wrong?

ps. I use the same db user both for php and query testing...

Answer 1

Try:

# See your query and check it in console of database client
var_dump($szQuery);

# See the methods available.... you will see something interesting :D
print_r(get_class_methods($this->getDefaultAdapter()->query($szQuery)));

# I recommend to you use try/catch
$arResult = $this->getDefaultAdapter()->query($szQuery)->fetchAll();

[]'s

Answer 2

Your SQL statement have reserved words, as I can see. You should try to build your conection so it can automatically escape identifiers or you should do it your self, manually. For the first option, try this:

  $options = array(Zend_Db::AUTO_QUOTE_IDENTIFIERS => false);
  $params = array(
      'host'           => 'host',
      'username'       => 'user',
      'password'       => 'secret',
      'dbname'         => 'db',
      'options'        => $options
  );
  $db = Zend_Db::factory('Pdo_Mysql', $params);