コール::結果（）

Question

マイModelのエラー：未定義のメソッドCI_DB_mysqli_driverに呼び出し::結果（）

 <?php 
    defined('BASEPATH') OR exit('No direct script access allowed'); 

    class teacher_feedback extends CI_Model { 

    public function teacher_feedback_query($teacher) 
     { 
    $teacher_feedback_query = 'SELECT TD.name, TD.subject, TFA.answer_value, SBI.first_name, TFSAC.comment, TFSC.comment, TFQ.teachers_feedback_question_id FROM teacher_details as TD inner join teachers_feedback_student_answer as TFSA on TFSA.teacher_id = TD.teacher_id inner join teachers_feedback_answer as TFA on TFA.teachers_feedback_answer_id = TFSA.teachers_feedback_answer_id inner join teachers_feedback_student_answer_comment as TFSAC on TFSAC.teacher_id = TD.teacher_id inner join student_basic_info as SBI on SBI.student_id=TFSAC.student_id inner join teachers_feedback_student_comment as TFSC on TFSC.student_id = SBI.student_id inner join teachers_feedback_question as TFQ on TFQ.teachers_feedback_question_id = TFSA.teachers_feedback_question_id where TD.teacher_id = ?'; 

$teacher_query = $this->db->query($teacher_feedback_query,array($teacher)); 
$teacher_feedback_result = $this->db->result($teacher_query); 
return $teacher_feedback_result(); 
} 
} 
?> 

Answer 1

は（result_arrayを戻してください）だけではなく（結果）

Answer 2

Iあなたがここでやろうとしていることが間違っていると思います。 resultメソッドは照会結果に対して呼び出され、dbオブジェクトには呼び出されません。

これを試してみてください：

<?php 

defined('BASEPATH') OR exit('No direct script access allowed'); 

class teacher_feedback extends CI_Model { 

    public function teacher_feedback_query($teacher) 
    { 
      $teacher_feedback_query = 'SELECT TD.name, TD.subject, TFA.answer_value, SBI.first_name, TFSAC.comment, TFSC.comment, TFQ.teachers_feedback_question_id FROM teacher_details as TD inner join teachers_feedback_student_answer as TFSA on TFSA.teacher_id = TD.teacher_id inner join teachers_feedback_answer as TFA on TFA.teachers_feedback_answer_id = TFSA.teachers_feedback_answer_id inner join teachers_feedback_student_answer_comment as TFSAC on TFSAC.teacher_id = TD.teacher_id inner join student_basic_info as SBI on SBI.student_id=TFSAC.student_id inner join teachers_feedback_student_comment as TFSC on TFSC.student_id = SBI.student_id inner join teachers_feedback_question as TFQ on TFQ.teachers_feedback_question_id = TFSA.teachers_feedback_question_id where TD.teacher_id = ?'; 

      $teacher_query = $this->db->query($teacher_feedback_query,array($teacher)); 
      //$teacher_feedback_result = $this->db->result($teacher_query); 
      $teacher_feedback_result = $teacher_query->result(); 
      return $teacher_feedback_result; // Remove parenthesis, $teacher_feedback_result is not a function 
    } 
} 

?> 

EDIT：未定義のメソッドのCI_DB_mysqli_driverにエラーコール::結果（）

PHPは、このエラーをスローについて

ためのCodeIgniter MySQLiのアダプタクラスメソッドresultはありません。 CodeIgniterのMySQLiドライバクラスを次に示します。

だから、

https://github.com/bcit-ci/CodeIgniter/blob/develop/system/database/drivers/mysqli/mysqli_driver.php

、あなたが$this->db->result($teacher_query)を呼び出している、$this->dbはCI_DB_mysqli_driverに取り付けられており、したがって、あなたは未定義のメソッドを呼び出しているエラーを取得する：あなたはそれを確認することができ、そのような方法resultはありません。