Codeigniter活动记录：类似和在SQL语句中的位置

我需要选择几个符合以下条件的行：

日期>=今天

关键字出现在字段1、2或3中

我想这方面的SQL语句应该是：

SELECT * FROM `events` WHERE date >= '2010-09-12' AND (field1 LIKE '%keyword%' OR field2 LIKE '%keyword%' OR field3 LIKE '%keyword%')

我试图用codeigniter的活动记录来写这篇文章，但是类似的条件似乎覆盖了日期记录

$this->db->select('*');
$this->db->join('venues', 'events.venue = venue_id');

//first condition: date >= today
$this->db->where('date >=', date('Y-m-d'));

if ($keyword)
//if keyword is present, add this condition as well
{
    $this->db->like('events.description', $keyword);
    $this->db->or_like('band', $keyword);
    $this->db->or_like('venues.venue', $keyword);
}

$this->db->order_by('date', 'ASC');
$this->db->order_by('events.priority', 'DESC'); 
$Q = $this->db->get('events');

---

我可能需要在parentesis中插入LIKE语句，但不知道如何操作。

我认为您必须以这种方式编写查询的“LIKE”部分：

$this->db->select('*');
$this->db->join('venues', 'events.venue = venue_id');

if ($keyword)
//if keyword is present, add this condition as well
{
   $where = "( events.description LIKE '$keyword' OR band LIKE '$keyword' OR venues.venue LIKE '$keyword')";
   $this->db->where($where);

}
//first condition: date >= today
$this->db->where('date >=', date('Y-m-d'));

$this->db->order_by('date', 'ASC');
$this->db->order_by('events.priority', 'DESC'); 

---

我认为您必须以这种方式编写查询的“like”部分：

$this->db->select('*');
$this->db->join('venues', 'events.venue = venue_id');

if ($keyword)
//if keyword is present, add this condition as well
{
   $where = "( events.description LIKE '$keyword' OR band LIKE '$keyword' OR venues.venue LIKE '$keyword')";
   $this->db->where($where);

}
//first condition: date >= today
$this->db->where('date >=', date('Y-m-d'));

$this->db->order_by('date', 'ASC');
$this->db->order_by('events.priority', 'DESC'); 

$Linkearray = array('page_content' => $search, 'page_title' => $search);
$this->db->like($Linkearray);
$this->db->where('page_online',1);
$this->db->where('page_site',$page_site);

// WHERE page_content LIKE '% my Text%' 
// AND page_title LIKE '% my page title %' 
// AND page_online = '1' and page_site ='29'