无法传递数据进行查看

时间:2018-11-21 12:02:00

标签: php codeigniter

我正在学习codeigniter框架。我设法使登录页面正常工作,现在我正尝试将数据从控制器传递到我的视图。我遇到了我一直在查看和查看的错误,并按照建议进行操作,仍然收到错误/

模型

class Dashboard_Model  extends CI_Model{

    function __construct(){

        parent::__construct();
    }

    public function getTasks(){

        $this->db->Select("COUNT(taskID) as totaltasks");
        $this->db->from('tasks');

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

        return $query->result();
    }

} 

控制器

class Dashboard extends CI_Controller {

    function __construct(){

        parent::__construct();
        $this->load->model('admin/dashboard_model');
    }

    public function index(){
        if(!$this->session->logged_in){
            redirect('user_login');
        }else{
            $data['title'] = $this->session->fullname. " | Dashboard";
            $this->load->view('admin/common/header',$data);


            $data['total'] = $this->dashboard_model->getTasks();

            $this->load->view('admin/dashboard',$data);
            $this->load->view('admin/common/footer');
        }

    }

} 

查看

 <h2 class="text-white"><span data-plugin="counterup"><?php echo $total?></span> <small><i class="mdi mdi-arrow-up text-success"></i></small></h2>

错误:

  

严重性:通知

     

消息:数组到字符串的转换

     

文件名:admin / dashboard.php

     

行号:40

我做错了什么?

2 个答案:

答案 0 :(得分:1)

result()此方法以对象数组的形式返回查询结果,或者在失败更新getTasks时返回空数组,如下所示:

public function getTasks(){

        $this->db->Select("COUNT(taskID) as totaltasks");
        $this->db->from('tasks');

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

        return $query->result()[0]->totaltasks;
    }

答案 1 :(得分:0)

当您已经知道将获得一行结果时,可以使用row()获得单行而不是result()

    public function getTasks(){

      $this->db->Select("COUNT(taskID) as totaltasks");
      $this->db->from('tasks');
      $query = $this->db->get();
      return $query->row()->totaltasks;
   }