[eluser]Unknown[/eluser]
Hello,
I'm new to CI and I faced a problem at the moment. Any advice will be appreciated!
Code:
$faulty = $this->db->select('COUNT(*) as f_count')
->from("TABLE")
->where('ttime BETWEEN "'.$tstart.'" AND "'.$tend.'"')
->where('rtime = 0')
->where_in("mid", $mids)
->group_by("mid")
->get();
What I'm trying to do is that, from "TABLE" I want to count number of row respect to each mid that has the condition of rtime = 0. It does return some values but not fully. The problem is that when there are no row found, I want it to be return '0' for corresponding mid but it just skips.
For better understanding:
TABLE
mid | rtime
---------------
A |rtime = 3
A |rtime = 0
A |rtime = 1
B |rtime = 5
B |rtime = 0
B |rtime = 0
C |rtime = 3
And as a result:
A = 1
B = 2
Which I desire is:
A = 1
B = 2
C = 0
I did some research, and MYSQL has 'ISNULL()' or ' COALESCE()' which will do the job.
I couldn't find in Active Record (or just that it's there and I couldn't understand...) in CI.
Thank you for reading my post!
-Dan
