Question

我不确定我的代码有什么问题.......它在加载模型时导致错误....... 请帮忙........... 我的控制器

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

class Exams extends CI_Controller {
    public function index(){
        $ob = new exam_class();
        $ob->set_exam(0,'Html exam','1','20');
        $ob->create_exam();
        echo 'success';
    }
}

class exam_class{
    private $id;
    private $title;
    private $catagory;
    private $timeLength;

    function set_exam($id,$title,$catagory,$timeLength){
        $this->id = $id;
        $this->title = $title;
        $this->catagory = $catagory;
        $this->timeLength = $timeLength;
    }

    function create_exam(){
        $this->load->model('examModel');
        $this->examModel->create_exams($title,$catagory,$timeLength);
    }
}

模型

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

class ExamModel extends CI_Model {
    public function create_exams($title,$catagory,$timeLength){
        $data = array(
           'title' => $title ,
           'catagory' => $catagory ,
           'timeLength' => $timeLength
        );

        $this->db->insert('exams', $data);
    }
}

错误遇到PHP错误

严重性：注意

消息：未定义的属性：exam_class :: $ load

文件名：controllers / exams.php

行号：26

致命错误：在第26行的C：\ xampp \ htdocs \ exam \ application \ controllers \ exams.php中的非对象上调用成员函数model（）

Answer 1

您不应该在文件中放置多个类。控制器应该是这样的。

class Exams extends CI_Controller {

    private $id;
    private $title;
    private $catagory;
    private $timeLength;
    public function __construct()
    {
        parent::__construct();
        $this->load->model('examModel');
    }

    public function index(){
        $this->set_exam(0,'Html exam','1','20');
        $this->create_exam();
        echo 'success';
    }   

    function set_exam($id,$title,$catagory,$timeLength){
        $this->id = $id;
        $this->title = $title;
        $this->catagory = $catagory;
        $this->timeLength = $timeLength;
    }

    function create_exam(){
        $this->examModel->create_exams($title,$catagory,$timeLength);
    }
}

Answer 2

与@shin一起，我希望包括转到此文件

....\testproject\application\config\autoload.php

并编辑此内容以添加模型

$autoload['model'] = array('modelName1','modelName2');

并从任何控制器随时加载模型。这将自动加载您的模型。无需添加

 $this->load->model('modelName');

Answer 3

提示：保持简单

在您的控制器中：

public function __construct()
{
    parent::__construct();
    $this->load->model('examModel');
}

public function index()
{
    $exam_data = $this->process_exam_data(0,'Html exam','1','20');

    $insert_status = $this->examModel->create_exams($exam_data);

    if($insert_status===TRUE){
        echo "Exam Insert Successful!";
    }
    else{
        echo "Exam Insert Failed"; 
    }
}

public function process_exam_data($id, $title, $category, $timelength)
{
   // Do whatever you want with the data, calculations etc.

   // Prepare your data array same as to be inserted into db
   $final_data = array(
                   'title'      => $processed_title,
                   'catagory'   => $processed_category,
                   'timeLength' => $processed_time
                );
   return $final_data;
}

在你的模特中：

public function create_exams($data)
{
    $result = $this->db->insert('exams', $data); // Query builder functions return true on success and false on failure
    return $result;
}

您的index函数是执行调用的主函数，而所有处理工作都在process_exam_data函数中完成。

祝你有愉快的一天：）

codeigniter帮助在加载模型时导致错误

3 个答案: