在codeigniter中管理两个角色 [英] Managing two roles in codeigniter

问题描述

我有两个角色，管理员和老师。管理员和老师帐户可以登录，但是当我登录教师帐户，它将重定向到管理页面。我不知道我的代码是否是正确的。我是一个新手使用codeigniter，所以请承担与我。

I have two roles, the admin and the teacher. The admin and teacher accounts can login however when I logged in the teacher account it will redirect to admin page. I don't know if my code is right as well. I'm a newbie at using codeigniter so please bear with me.

这里是我的控制器：

public function login_validation(){

  $this->load->library('form_validation');


  $this->form_validation->set_rules('idnum', 'ID Number', 'required|trim|xss_clean|callback_validate_credentials');
  $this->form_validation->set_rules('password', 'Password', 'required|md5|trim');

  if ($this->form_validation->run()){
     //$this->load->model('model_users');
     $this->load->model('model_role');
     $data = array(
           'login_id' => $this->input->post('idnum'),
           'is_logged_in' => 1,
             'role' => $this->model_role->scalar('user_account','role')

        );

     $this->session->set_userdata($data);
     redirect('site/members'); 
  } else {
     $data['title'] = "Outcome-based Education";

     $this->load->view("index/header", $data);
     $this->load->view("index/view_home");
     $this->load->view("index/footer");
  }
}

public function members(){

  if($this->session->userdata('is_logged_in') && $this->session->userdata('role', 'admin')){
     $this->load->view('login/admin');
  }  elseif($this->session->userdata('is_logged_in') && $this->session->userdata('role', 'teacher')){
     $this->load->view('login/members');
  } 

     else{  
     redirect('site/restricted');
  }
}

这是我的模型：

public function can_log_in(){

        $this->db->where('login_id', $this->input->post('idnum'));
        $this->db->where('password', md5($this->input->post('password')));

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

        if($query->num_rows() == 1){
            return true;
        } else{
            return false;
        }
    }

推荐答案

你的成员函数你实际上并不检查角色会话数据的值，你只是检查它是否存在。您需要更改：

In your members function you are not actually checking the value of the role session data, you are just checking that it exists. You need to change :

if($this->session->userdata('is_logged_in') && $this->session->userdata('role', 'admin')){

到：

if($this->session->userdata('is_logged_in') && $this->session->userdata('role') == 'admin'){

将会看到，只有一个参数可以传递到$ this-> session-> userdata（）函数中：

As you will see, there is only 1 parameter that can be passed into the $this->session->userdata() function:

/**
 * Fetch a specific item from the session array
 *
 * @access  public
 * @param   string
 * @return  string
 */
function userdata($item)
{
    return ( ! isset($this->userdata[$item])) ? FALSE : $this->userdata[$item];
}

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