Codeigniter 会话数据或数据库查询？

Question

如何在标题上显示客户或用户的信息，例如姓名和姓氏？

首先，我有一个登录页面。客户和用户可以在同一登录页面上登录仪表板。在登录过程中，它使用 2 个数据库表，例如用户和客户。当客户和用户登录仪表板时，登录过程系统从 2 个数据库表中获取数据。

登录型号：

private $table = "user, customer";
    private $_data = array();

    public function validate()
    {
        $username = $this->input->post('username');
        $password = $this->input->post('password');

        // Username or Email Sending Settings
        $this->db->where("(user.userEmail = '$username' OR user.userUsername = '$username') OR (customer.cosEmail = '$username' OR customer.cosUserName = '$username')"); //
        $query = $this->db->get($this->table);

        if ($query->num_rows())
        {
            // found row by username    
            $row = $query->row_array();

            // now check for the password
            if ($row['userPass'] == $password OR $row['cosPassword'] == $password)
            {
                // we not need password to store in session
                unset($row['userPass' OR 'cosPassword']);
                $this->_data = $row;
                return ERR_NONE;
            }

            // password not match
            return ERR_INVALID_PASSWORD;
        }
        else {
            // not found
            return ERR_INVALID_USERNAME;
        }
    }

    public function get_data()
    {
        return $this->_data;
    }

我想在标题上显示客户或用户的信息。当客户登录时，客户可以看到自己的信息，或者当用户登录时，用户可以在同一个仪表板中看到自己的信息。

为此，我使用 Codeigniter 的 SessionData。查看标题：

<li class="dropdown">
                <a data-toggle="dropdown" class="dropdown-toggle" href="#">
                    <img alt="" src="<?php echo base_url().'upload/user/'.$this->session->userdata('userImg'); ?>">
                    <span class="username"><?php echo $this->session->userdata('userName'); ?>  <?php echo $this->session->userdata('userSurname'); ?></span>
                    <b class="caret"></b>
                </a>
                <ul class="dropdown-menu extended logout">
                    <div class="log-arrow-up"></div>
                    <li><a href="<?php echo base_url(); ?>profile"><i class=" fa fa-suitcase"></i>Profile</a></li>
                    <li hidden><a href="#"><i class="fa fa-cog"></i> Settings</a></li>
                    <li hidden><a href="<?php echo base_url(); ?>notifications"><i class="fa fa-bell-o"></i> Notification</a></li>
                    <li><a href="<?php echo base_url(); ?>logout"><i class="fa fa-key"></i> Log Out</a></li>
                </ul>
            </li>

但是当客户登录时我无法显示任何内容。因为我不知道客户登录时如何显示客户信息。当客户登录仪表板时，我再次看到用户信息。我该如何设置我想要的？帮帮我，这太重要了。

我试过了：

$this->session->userdata('userName') || $this->session->userdata('cosName')

但是系统在用户名上显示我 1。它不起作用。

我可以根据客户或用户的用户数据显示什么信息？

我的登录控制器：

public function index()
    {   
        $this->logged_in_check();

        $this->load->library('form_validation');
        $this->form_validation->set_rules("username", "Username", "trim|required");
        $this->form_validation->set_rules("password", "Password", "trim|required");
        if ($this->form_validation->run() == true) 
        {
            $this->load->model('login_model', 'login'); 
            // check the username & password of user
            $status = $this->login->validate();
            if ($status == ERR_INVALID_USERNAME) {
                $this->session->set_flashdata("error", "Username or Email is invalid");
            }
            elseif ($status == ERR_INVALID_PASSWORD) {
                $this->session->set_flashdata("error", "Password is invalid");
            }
            else
            {
                // success
                // store the user data to session
                $this->session->set_userdata($this->login->get_data());
                $this->session->set_userdata("logged_in", true);
                // redirect to dashboard
                redirect("dashboard");
            }
        }   
        $this->load->view("login");
    }

Answer 1

你可以只使用这个函数，去掉其他函数。

 public function index(){   
    $this->load->library('form_validation');
    $this->form_validation->set_rules("username", "Username", "trim|required");
    $this->form_validation->set_rules("password", "Password", "trim|required");
    if ($this->form_validation->run() == FALSE) 
    {
        $this->session->set_flashdata("error", validation_errors());
        $this->load->view("login");
    }
    else{
        $username = $this->input->post('username');
        $password = $this->input->post('password');
        $user_data = $this->db->query("(SELECT * FROM user WHERE  userUsername = '$username' OR userEmail = '$username' AND userPass = '$password')");
        $cus_data = $this->db->query("(SELECT * FROM customer WHERE  cosUserName = '$username' OR cosEmail = '$username' AND cosPassword = '$password')");
        if ($user_data->num_rows() > 0) {
            foreach ($user_data->result_array() as $row) {
                $this->session->set_userdata('people_name',$row['userUsername']);
                $this->session->set_userdata("logged_in", true);
            }
            // redirect to dashboard
            redirect("dashboard");
        }
        elseif ( $cus_data->num_rows() > 0) {
            foreach ($cus_data->result_array() as $row) {
                $this->session->set_userdata('people_name',$row['cosUserName']);
                $this->session->set_userdata("logged_in", true);
            }
            // redirect to dashboard
            redirect("dashboard");
        }
        else{
            $this->session->set_flashdata("error", "Username or Email is invalid");
            $this->load->view("login");
        }
    }  
}

也在视图中使用此代码echo $this->session->userdata('people_name') 来显示用户或客户名称。