Question

Solution:

$query = $this->db->query("
   SELECT *, SUM(views.times) AS sum
   FROM channel
   RIGHT JOIN video
   ON channel.channel_id = video.channel_id
   LEFT JOIN user
   ON channel.user_id = user.user_id
   LEFT JOIN views
   ON channel.channel_id = views.channel_id
   GROUP BY channel.channel_name
   ORDER BY sum DESC
");

I have a query that returns a list of items.

function getfrontpage(){
    $this->db->select('*');
    $this->db->from('channel');     
    $this->db->join('video', 'channel.channel_id = video.channel_id' , 'right');
    $this->db->join('user', 'channel.user_id = user.user_id');
    $this->db->group_by("channel.channel_name"); 
    $query = $this->db->get();
    return $query->result();
}

Now i’m trying to order these with the SUM from another table, how can i achieve this?

Here is a picture from that table:

I want the results to be sorted by the SUM of the total of “times” for each “channel_id”

thanks in advance

Answer 1

I would suggest to run this through $this->db->query() instead.

It’s nice to fetch simple values through CodeIgniters AR functions. But at some situations it’s simply easier to build query strings instead.

In your case:

$query = $this->db->query("
SELECT channel_id, SUM(times) AS sum
FROM channel
GROUP BY channel_id
ORDER BY sum DESC
");

---

You can also escape most values through db->query()!

$this->db->query("
SELECT name
FROM table_name
WHERE id = ?
", array(1));