codeigniter activerecord where子句手动发出自己的子句

Question

我不确定这是对还是错，但我想在where 子句下面使用。我正在关注Codeigniter手册（Active Record Class章节，$this->db->where();部分，点4）自定义字符串）。

1. $condition = uid = '4' AND id = '1';
2. 我的控制器

$fields = "id";
$condition = "";
if($condition) { 
  $condition.=" AND ";
}
if($json_decoded->userId) { 
  if($condition) { 
    $condition.=" AND ";
  }
  $condition.=" uid = '".$json_decoded->userId."'";
}
if($json_decoded->listId) { 
  if($condition) { 
    $condition.=" AND ";
  }
  $condition.=" id = '".$json_decoded->listId."'";
}
 $checkExist = $this->mdl_details->getDetailByIdandUid($fields,$condition);

1. 我的模型功能

$this->db->select($fields);

$this->db->from(TBL_DETAILS);

if(!empty($condition)) { 
  $this->db->where($condition);
}

$query = $this->db->get()->row();
echo $this->db->last_query(); die;
return $query;

它向我显示如下错误

错误号：1054

“where 子句”中的未知列 'uid = '4' AND id = '1''

SELECT `id` FROM (`guide`) WHERE `uid = '4' AND id = '1'

如何在查询中去掉这个反引号 (`) 字符？

Answer 1

将'FALSE'作为$this->db->where()中的第三个参数传递，那么codeigniter不会添加反引号。

$this->db->where('MATCH (field) AGAINST ("value")', NULL, FALSE);

你的情况

$this->db->where($condition, NULL, FALSE);