codeigniter mysql left join include select

Question

How to convert the left join include select to codeigniter sql method? Thanks. I just want to know.

SELECT c1.c1_id, c1.c1_name, c2.c2_id, c2.c2_name, c2.c2_         


        

Answer 1

$query='SELECT c1.c1_id, c1.c1_name, c2.c2_id, c2.c2_name, c2.c2_type, c2.c2_status, f.f_id, f.f_name, f2.f2_id, f2.f2_name FROM category2 c2 
LEFT JOIN category1 c1 ON c1.c1_id = c2.c1_id 
LEFT JOIN (
    SELECT DISTINCT c2_id, f_id, f_name FROM file ORDER BY f_id DESC
) f ON f.c2_id = c2.c2_id
LEFT JOIN (
    SELECT DISTINCT c2_id, f2_id, f2_name FROM file2 ORDER BY f2_id DESC
) f2 ON f2.c2_id = c2.c2_id
WHERE c2.c2_status = ?
GROUP BY c2.c2_id';
$params=array();
$params[]=1;
$result=$this->db->query($query,$params);
$result=$result->result_array();
print_r($result); 

I would avoid using Codeigniter's Active Record class unless your goal is to obfuscate your code.

"Always code as if the person who ends up maintaining your code is a violent psychopath who knows where you live."