Question

As I am new to code igniter and MVC, I am slowly but surely getting my login form to log a user in via data I’ve stored in the db.

I have pieced together my current version from articles and advice from forums, however I am a little confused at this point as to why it seems that data is not being stored and sent properly.

I have my login form set up to re-load the form if the password is incorrect ( eventually will add a message)

That being said, when I put in the proper login info it reloads the page. That can only tell me that I am not communicating with the db properly or not sending and or storing info with my $data variable properly.

Here is what I have code wise:

Model:

<?php

class User_model extends CI_Model {
   function __construct()
        {
            // Call the Model constructor
            parent::__construct();
        }

    function login($data = array())
    {
    // validate data
    if( !empty($data) ) return FALSE;

    // retrieve query
    $query = $this->db
            ->from('users')
            ->where($data)
            ->get();

    // Check if query row exists
    if($query->row())
    {
        // Query row exists, return query row
        return $query->row();
    }
    else
    {
        // Query row doesn't exist, return FALSE
        return FALSE;
    }
  }
}

View:

title>Login</title>

<!--MAKE SURE SIGNED OUT HEADER IS IMPLEMENTED FOR ALL SIGNED OUT PAGES INCLUDING THIS ONE-->

<div class="structure clearfix">
    <h1 class="title_header">
        Sign In
    </h1>
    <div id="signin_form">
        <?php
        echo validation_errors(); 
        echo form_open('auth/validate_credentials');
        echo "<div class='form_text_signin'>";
        echo "Email";
        echo "</div>";
        echo form_input('email');
        echo "<div class='form_text_signin'>";
        echo "Password";
        echo "</div>";
        echo form_input('password');
        echo form_submit('submit', 'Submit');
        echo form_close();
        ?>
    </div>
</div>

Controller:

<?php
class Auth extends CI_Controller {
    function __construct()
        {
            // Call the Model constructor
            parent::__construct();
        }

    // this is automatically called if no other function is called
    // it simply turns around and calls the login() function to show the login page

    public function index() {

        $this->login();
    }

    public function login() {   
    $data['main_content'] = 'auth/login';
    $this->load->view('includes/templates/main_page_template', $data);

    }

    function validate_credentials () {
        $query = $this->load->model('user_model');



        if($query)
        {
            $data = array(
                'email' => $this->input->post('email'),
                'password' => $this->input->post('password'),
                'is_logged_in' => true
            );

            $this->session->set_userdata($data);
            redirect('account/dashboard');
        }
        else
        {
            $this->index();
        }
    }
}

thanks in advance.

Answer 1

It doesn’t look like you’re calling the login method from your user_model class at any point – you’re just instantiating the class. You should be calling the model method from your controller – I haven’t tested this code but hopefully it gets you on the right track:

    function validate_credentials () {
        $this->load->model('User_model');
        $data = array(
            'email' => $this->input->post('email'),
            'password' => $this->input->post('password')
        );
        $query = $this->User_model->login($data);

        if($query)
        {
            $data['is_logged_in'] = true;
            $this->session->set_userdata($data);
            redirect('account/dashboard');
        }
        else
        {
            $this->index();
        }
    }