Codeigniter : Error in ORDER BY CASE query

Question

Here is my query in Codeigniter

$this->db->select(\'p.*,u.firstname, u.lastname,s.title AS industry, pt.type_name , al.length_value\',         


        

Answer 1

Set your "CASE WHEN" inside your "SELECT" and not inside the "ORDER_BY":

$this->db->select('p.*,u.firstname, u.lastname,s.title AS industry, pt.type_name , al.length_value',FALSE);
$this->db->select("CASE p.submit_to WHEN '' THEN 0 WHEN 'writer' THEN 1 ELSE 2 END order_column_number",FALSE);
$this->db->from($this->_tbl_projects . ' as p');
$this->db->join($this->_tbl_client_details . ' as c', 'c.id = p.client_id', 'left');
$this->db->join($this->_tbl_users . ' as u', 'u.id = c.user_id', 'left');
$this->db->join($this->_tbl_project_types . ' as pt', 'pt.project_type_id = p.project_type_id', 'left');
$this->db->join($this->_tbl_specializations . ' as s', 's.specialization_id = p.specialization_id', 'left');
$this->db->join($this->_tbl_article_length . ' as al', 'al.article_length_id = p.article_length_id', 'left');
$this->db->order_by("order_column_number ASC, p.request_end_date ASC");