Codeigniter 结合 where_in 和 like 活动记录查询

Question

我有以下活动记录查询：

$this->db->select('id, email, first_name, last_name, current_location_state, current_location, avatar, avatar_fb');
          $this->db->from('users');
          $this->db->like('first_name', $search);
          $this->db->or_like('last_name', $search);
          $this->db->or_like("CONCAT(first_name, ' ', last_name)", $search);
          $this->db->or_like('email', $search);
          $this->db->where_in('id', $ids);

这是一个具有数组 $ids 的函数，其中包含我朋友的 id。我想搜索与我的“喜欢”查询匹配的朋友，但在 $ids 变量中只有一个 id。

我很确定我需要结合 where_in 和所有类似的语句，所以它类似于 (WHERE_IN $ids && Like 语句)。

我不擅长 mysql，所以这里的任何帮助将不胜感激。

谢谢！

function narrow_connections($search) {

       //First get all this users connections...
       $connections = $this->get_connections($this->session->userdata('user_id'), 0, 0);

       if(empty($connections)) {
          return array();
       }else {

          //Need to get an array of id's
          $ids = array();
          foreach($connections as $con) {
             array_push($ids, $con['id']);
          }

          //Now that we have an array of ID's, find all users that have one of the ids (our connections), AND match a search term to narrow down
          //the results. 

          $this->db->select('id, email, first_name, last_name, current_location_state, current_location, avatar, avatar_fb');
          $this->db->from('users');
          $this->db->like('first_name', $search);
          $this->db->or_like('last_name', $search);
          $this->db->or_like("CONCAT(first_name, ' ', last_name)", $search);
          $this->db->or_like('email', $search);
          $this->db->where_in('id', $ids);
          $query = $this->db->get();
          $data = array();

          foreach ($query->result() as $row) {
          $data[] = array(
            'id' => $row->id,
            'email' => $row->email,
            'first_name' => $row->first_name,
            'last_name' => $row->last_name,
            'current_location_state' => $row->current_location_state,
            'current_location' => $row->current_location,
            'avatar' => $row->avatar,
            'avatar_fb' => $row->avatar_fb,
          );
          }
          return $data;

       }
     }

Answer 1

你想找到所有的朋友吗？如果只有一个 id，那么您不需要 like 部分，因为您已经找到了您的朋友。另一方面，如果你不确定你的朋友中有id，只是想找到所有符合你喜欢条件的朋友，你可以删除where_in部分。

这会找到你的朋友：

$this->db->select('id, email, first_name, last_name, current_location_state, current_location, avatar, avatar_fb');
$this->db->from('users');
$this->db->like('first_name', $search);
$this->db->or_like('last_name', $search);
$this->db->or_like("CONCAT(first_name, ' ', last_name)", $search);
$this->db->or_like('email', $search);

考虑到只有一个id，这样的查询只会找到一个朋友：

$this->db->select('id, email, first_name, last_name, current_location_state, current_location, avatar, avatar_fb');
$this->db->from('users');
$this->db->where_in('id', $ids);

编辑

有时，使用 codeigniter，最好使用原始查询：

$this->db->query('
  SELECT `id`, `email`, `first_name`, `last_name`, `current_location_state`, `current_location`, `avatar`, `avatar_fb`
  FROM `users`
  WHERE (
    `first_name` like ?
    or `last_name` like ? 
    or concat(`first_name`, ' ', `last_name`) like ? 
    or `email` like ?)
  AND `id` in('
    .join(',',
    array_map(function($e) { return (int) $e; }, $ids))
    .')',
  "%$search%", "%$search%", "%$search%", "$search")->result();

Answer 2

已经有一段时间了，但我遇到了同样的问题，只需重新排序过滤器即可解决。这意味着：您首先必须执行 'where' 语句（而不是 'where_in'）

这看起来像：

$this->db->select('id, email, first_name, last_name, current_location_state, current_location, avatar, avatar_fb');

      $this->db->where('id', $ids);
      $this->db->from('users');
      $this->db->like('first_name', $search);
      $this->db->or_like('last_name', $search);
      $this->db->or_like("CONCAT(first_name, ' ', last_name)", $search);
      $this->db->or_like('email', $search);