Question

当连接到具有联接的表时，在此函数内出现错误。

我发现的错误

遇到未捕获的异常类型：错误消息：调用未定义的方法CI_DB_mysqli_driver :: select（）

我的代码是：

public function get_data($table,$where='',$select='',$join='',$limit='',$start=NULL,$order_by='',$group_by='',$num_rows=0,$csv='') //selects data from a table as well as counts number of affected rows
    {


        // only get data except deleted values
        // $col_name=$table.".deleted";
        // if($this->db->field_exists('deleted',$table) && $show_deleted==0)
        // $where['where'][$col_name]="0";

        $this->db->select($select);
        $this->db->from($table);

        if($join!='')                   $this->generate_joining_clause($join);      
        if($where!='')                  $this->generate_where_clause($where);

        if($this->db->field_exists('deleted',$table))
        {
            $deleted_str=$table.".deleted";
            $this->db->where($deleted_str,"0");
        }

        if($order_by!='')               $this->db->order_by($order_by);
        if($group_by!='')               $this->db->group_by($group_by);




        if(is_numeric($start) || is_numeric($limit))
            $this->db->limit($limit, $start);

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

        if($csv==1)
        return $query; //csv generation requires resourse ID

        $result_array=$query->result_array(); //fetches the rows from database and forms an array[]

        if($num_rows==1)
        {
            $num_rows=$query->num_rows(); //counts the affected number of rows
            $result_array['extra_index']=array('num_rows'=>$num_rows);  //addes the affected number of rows data in the array[]
        }

        // print_r($this->db->last_query());
        return $result_array; //returns both fetched result as well as affected number of rows 

}

我在google上搜索了这个问题，但在执行get（）时发现了问题，但已经有了。有帮助吗？

Answer 1

请确保您的模型正在扩展代码CI_Model，并且还要在config文件夹下的autoload.php中加载Databse驱动程序。

Codeigniter遇到未捕获的异常

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