Question

Im trying to implement delete code with LEFT JOIN in Joomla 2.5:

$cid = JRequest::getVar('cid', array(), 'post', 'array');

$query = $db->getQuery(true);

$query->delete($db->quoteName('table1').' AS t1');

$query->leftJoin($db->quoteName('table2').
' AS t2 ON t2.table_1_id = t1.id ');

$query->where(array('t1.id IN ('.  implode(',', $cid).')'));

$db->setQuery($query);

try {
  $db->query(); 
} catch (Exception $e) {
  echo $e->getMessage();
}

What I get is:

DELETE FROM `table1` AS t1
LEFT JOIN `table2` AS t2 ON t2.table_1_id = t1.id 
WHERE t1.id IN (48)

This SQL query is incorrect. What I need is:

DELETE t1.*,t2.* FROM `table1` AS t1
LEFT JOIN `table2` AS t2 ON t2.table_1_id = t1.id 
WHERE t1.id IN (48)

So how I should change Joomla query to get the right SQL query? Any ideas?

Answer 1

I have been working with Joomla for a long time now. According to my Joomla knowledge you can’t accomplish what you are trying to do $query->delete(). Since your query is a bit tricky it can be executed using below method.

$db = JFactory::getDBO();
$query = "DELETE t1.*,t2.* FROM `table1` AS t1
LEFT JOIN `table2` AS t2 ON t2.table_1_id = t1.id 
WHERE t1.id IN (48)"; // you can replace the line with array('t1.id IN ('.  implode(',', $cid).')')
$db->setQuery($query);
$db->query();