combine 2 SQL statements PHP OOP - php

Question

I have these 2 functions executing 2 different queries:
public function getListPerPage($limit, $offset) {
$dql = "SELECT b FROM Entities\Brain b WHERE b.status = '1' ORDER BY b.id DESC";
$query = $this->getEntityManager()->createQuery($dql);
AND
public function getHiddenItems($limit, $offset, $brain_user_id) {
$dql = "SELECT b FROM Entities\Brain b WHERE b.status = '2'
AND b.user = :brain_user_id ORDER BY b.id DESC";
$query = $this->getEntityManager()->createQuery($dql);
$query->setParameter('brain_user_id', $brain_user_id);
I want to merge them in one function and one query, how can I combine these 2 statements in one query?
I tried using UNION as I read in many other questions and did not work for me.
The way I tried using UNION was:
"(SELECT b FROM Entities\Brain b WHERE b.status = '1')
UNION (SELECT b FROM Entities\Brain b WHERE b.status = '2'
AND b.user = :brain_user_id) ORDER BY b.id DESC";
Gave me an error, maybe my syntax was wrong?

Answer 1

Simply use one model method, store the result of each query on a separate variable and then return an array (or object, your choice) with both results to the controller.
For example:
public function getListAndHiddenItems($limit, $offset, $brain_user_id)
{
$this->load->database();
$this->db->select('fields');
$this->db->from('table_one');
$query = $this->db->get();
$list = $query->result();
$this->db->select('other_fields');
$this->db->from('table_two');
$query = $this->db->get();
$hidden = $query->result();
$result = array('list' => $list, 'hidden' => $hidden);
return $result;
}
Add whatever clauses, joins, etc you need on each query. You would need to only call this single method from the controller and you'll get the two resultsets in different array elements