lead_approval.php

<?php
class Lead_approval extends CI_Controller {
  protected $user = NULL;

  function __construct() {
    parent::__construct();
    if ( $this->session->userdata( 'user_id' ) ) {
      $this->load->model( 'user_model', 'users' );
      $db_user = $this->users->user_load( $this->session->userdata( 'user_id' ) );
      if ( $db_user['token_created'] + $db_user['expires_in'] < time() ) {
        $this->session->sess_destroy();
        redirect( 'login' );
      }
      else {
        $this->user = $db_user;
      }
    }
    if ( ! $this->user ) {
      redirect( 'login' );
    }
    else if ( ! $this->user['is_admin'] ) {
      redirect( 'login/not_approved');
    }

    $this->load->model( 'lead_model', 'leads' );
  }
  
  public function index() {
    // ... this is where i give the admin user some fancy functionality to do their job
    // the neat part is that I can pass in $this->user to my templates to show the current
    // logged-in user and profile picture.
  }

}