COUNT and GROUP BY using Zend Framework 2 and tableGateway

Question

In Zend Framework 2, using tableGateway, I want to run the following SQL query:

  SELECT categories.category_name, COUNT(forums.forum_id)
    FROM categories         


        

Answer 1

Your query looks right. Does it work as expected when you run it directly on the database.

I think you might just need to execute the raw query using an adapter.

$sql = "SELECT categories.category_name, COUNT(forums.forum_id) FROM categories LEFT JOIN forums ON     categories.category_id = forums.category_id GROUP BY categories.category_name";

$statement = $this->adapter->query($sql);
return $statement->execute();