<?php

    class Login_model extends CI_Model{
        
        function __construct(){
            parent::__construct();
        }
        
        public function validate(){
            // grab user input
            $username = $this->security->xss_clean($this->input->post('username'));
            $password = $this->security->xss_clean($this->input->post('password'));
            
            // Prep the query
            $this->db->where('username', $username);
            $this->db->where('password', sha1($password));
            
            // Run the query
            $query = $this->db->get('users');
            
            // Let's check if there are any results
            if($query->num_rows == 1)
            {
                // If there is a user, then create session data
                $row = $query->row();
                $data = array(
                              'fname' => $row->fname,
                              'lname' => $row->lname,
                              'username' => $row->username,
                              'validated' => true
                              );
                $this->session->set_userdata($data);
                return true;
            }
            // If the previous process did not validate
            // then return false.
            return false;
        }
    }