如何制作php codeIgniter活动记录组？

Question

First, I have something in my model:

    $this->db->where('status', $aStatus);     
    $this->db->limit($aLimit, $aOffset);   

    $this->db->or_like('title', $aString);    
    $this->db->or_like('description', $aString);    

    $this->db->select('id,description,title,fee');

    $query = $this->db->get($this->table_name); 

And I got this query:

SELECT id , description , title , fee FROM ( events ) WHERE status = 0 AND title LIKE '%space%' OR description LIKE '%space%' LIMIT 5

But I would like to let it generate this query instead

SELECT id , description , title , fee FROM ( events ) WHERE status = 0 AND ( title LIKE '%space%' OR description LIKE '%space%' ) LIMIT 5

How can I modify to do so? Thank you.

Answer 1

Grouping LIKE clause (putting parenthesis around)

$this->db->group_start();
$this->db->like('name', $query_array['q']);
$this->db->or_like('description', $query_array['q']);
$this->db->group_end();

Will produce round backets like this

 (
   `name` LIKE '%test%' ESCAPE '!' 
    OR  `description` LIKE '%test%' ESCAPE '!' 
 )

Answer 2

Think the only way you'll manage that is by doing something along the lines of:

$this->db->where('status', $aStatus);
$this->db->where("(title LIKE '%space%' OR description LIKE '%space%')");
$this->db->limit($aLimit, $aOffset);   

$this->db->select('id,description,title,fee');

$query = $this->db->get($this->table_name); 

Haven't tested it but it should get you on the way. Other than that I don't think it's possible to include a grouped/bracketed query any other way.

Answer 3

I would just do something like

$this->db->where('status', $aStatus);     
$this->db->limit($aLimit, $aOffset);   

$this->db->where(sprintf(
    '(title LIKE %s OR description LIKE %s)',
    $this->db->escape_like_str($aString),    
    $this->db->escape_like_str($aString)
), NULL);    

$this->db->select('id,description,title,fee');

$query = $this->db->get($this->table_name);