Using Raw SQL with Doctrine

Question

I have some extremely complex queries that I need to use to generate a report in my application. I\'m using symfony as my framework and doctrine as my ORM.

My quest

Answer 1

Yes. You can get a database handle from Doctrine using the following code:

$pdo = Doctrine_Manager::getInstance()->getCurrentConnection()->getDbh();

and then execute your SQL as follows:

$query = "SELECT * FROM table WHERE param1 = :param1 AND param2 = :param2";
$stmt = $pdo->prepare($query);

$params = array(
  "param1"  => "value1",
  "param2"  => "value2"
);
$stmt->execute($params);

$results = $stmt->fetchAll();  

You can use bound variables as in the above example.

Note that Doctrine won't automatically hydrate your results nicely into record objects etc, so you'll need to deal with the results being returned as an array, consisting of one array per row returned (key-value as column-value).

Answer 2

You can also use Doctrine_RawSql(); to create raw SQL queries which will hydrate to doctrine objects.

Answer 3

It should be noted, that Doctrine2 uses PDO as a base, thus I would recommend using prepared statements over plain old execute.

Example:

$db = Doctrine_Manager::getInstance()->getCurrentConnection();
$query = $db->prepare("SELECT `someField` FROM `someTable` WHERE `field` = :value");
$query->execute(array('value' => 'someValue'));

Answer 4

Symfony insert raw sql using doctrine.

This in version Symfoney 1.3

$q = Doctrine_Manager::getInstance()->getCurrentConnection();
$result = $q->execute($query);

Answer 5

I'm not sure what do you mean saying raw SQL, but you coud execute traditional SQL queries this way:

... 
// $this->_displayPortabilityWarning();

$conn = Doctrine_Manager::connection();
$pdo = $conn->execute($sql);
$pdo->setFetchMode(Doctrine_Core::FETCH_ASSOC);
$result = $pdo->fetchAll();
...

The following method is not necsessary, but it shows a good practice.

protected function _displayPortabilityWarning($engine = 'pgsql')
{
     $conn = Doctrine_Manager::connection();
     $driver = $conn->getDriverName();

     if (strtolower($engine) != strtolower($driver)) {
        trigger_error('Here we have possible database portability issue. This code was tested on ' . $engine . ' but you are trying to run it on ' . $driver, E_USER_NOTICE);
     }
}

Answer 6

$q = Doctrine_Manager::getInstance()->getCurrentConnection();
$result = $q->execute(" -- RAW SQL HERE -- ");

See the Doctrine API documentation for different execution methods.