Multiple where condition codeigniter active record - php

Question

I want to make a multiple where query with AND and OR. Suppose my array is:
array (size=8)
0 => array (size=2)
'timeline.type' => string 'videos' (length=6)
'timeline.sourceId' => string '7' (length=1)
1 => array (size=2)
'timeline.type' => string 'loadshedding' (length=12)
'timeline.sourceId' => string '5' (length=1)
2 => array (size=2)
'timeline.type' => string 'news' (length=4)
'timeline.sourceId' => string '3' (length=1)
3 => array (size=2)
'timeline.type' => string 'news' (length=4)
'timeline.sourceId' => string '5' (length=1)
The above array could be dynamic. I want to make active record query like:
(timeline.type = 'videos' AND timeline.sourceId = 7) OR (timeline.type = 'loadshedding' AND timeline.sourceId = 5) OR (timeline.type = 'news' AND timeline.sourceId = 3) // and so on.
I tried :
$this->db->select('timeline.id as postid, timeline.*, sources.*, subscription.*')->from('timeline');
$this->db->join('sources', 'sources.type = timeline.type and timeline.sourceId = sources.id');
$this->db->join('subscription', 'subscription.type = timeline.type and timeline.sourceId = subscription.sourceId');
foreach($sources as $source){ //$sources is an array like given above
$this->db->or_where($source);
}
$this->db->order_by("timeline.id", "DESC");
$this->db->limit(15);
But when I echo $this->db->last_query(); to see the query. It returns SELECT * FROM timeline only. What might be the problem. Thank you.

Answer 1

Your Code Should be like
$sources = array (
0 => array (
'timeline.type' => 'videos',
'timeline.sourceId' => '7' ),
1 => array (
'timeline.type' => 'loadshedding',
'timeline.sourceId' => '5' ) ,
2 => array (
'timeline.type' => 'news',
'timeline.sourceId' => '3' ),
3 => array (
'timeline.type' => 'news',
'timeline.sourceId' => '5')
);
end($sources); // move the internal pointer to the end of the array
$lastkey = key($sources);
$pr = "";
foreach($sources as $key=>$source)
{
if($key != $lastkey)
{
$pr.="( `timeline.type` = '". $source["timeline.type"] ."' and `timeline.sourceId` = " . (int) $source["timeline.sourceId"] . ") OR ";
}
else
{
$pr.="( `timeline.type` = '". $source["timeline.type"] ."' and `timeline.sourceId` = " . (int) $source["timeline.sourceId"] . ")";
}
}
$this->db->select('timeline.id as postid, timeline.*, sources.*, subscription.*')->from('timeline');
$this->db->join('sources', 'sources.type = timeline.type and timeline.sourceId = sources.id');
$this->db->join('subscription', 'subscription.type = timeline.type and timeline.sourceId = subscription.sourceId');
$this->db->where($pr);
$this->db->order_by("timeline.id", "DESC");
$this->db->limit(15);