How to debug a query in extbase?

Question

$query = $this->createQuery();

    return $query->matching($query->like('linker', "$linkerKey=$linkerValue"))
        ->setOrderings(array('crdate' => $ordering))
        ->execute();

How can i debug such a generated query in extbase? When creating the same query again (but without the execute() ) and trying to display it with var_dump or the internal t3lib_div::debug i just receive a blank page.

Answer 1

$query = $this->createQuery();
$result = $query->matching($query->like('linker', "$linkerKey=$linkerValue"))
   ->setOrderings(array('crdate' => $ordering))
   ->execute();

$GLOBALS['TYPO3_DB']->debugOutput = true;

return $result;