/lenasys/trunk

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class ManageCourses extends CI_Controller {

	/* 

	 * tempLogin and tempLogout are temporary functions to debug user validation functionality

	 * They should be removed when lenasys is complete

	 */

	public function tempLogin() {

		$this->load->model('user');

		$loginDetails = array(

			'username' => 'tempTeacher',

			'name' => 'tempFoo',

			'usertype' => 'Teacher',

			'ssn' => '0000');

		$this->session->set_userdata('authenticated', $loginDetails);

		redirect('/ManageCourses');

	}

	public function tempLogout() {

		$this->load->model('user');

		$this->session->unset_userdata('authenticated');

		redirect('/ManageCourses');

	}

	/*

	 *	Manage courses index page

	 *  RESTRICTED-LEVEL: Teacher

	 */

	public function index()

	{

		/* Loads used models */

		$this->load->model('user');

		$this->load->model('admin/admin_model');

		$this->load->model('ExamplesModel');

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

		$this->load->helper('form');

		// Arrays

		$headTagData = array(

			'cssFiles' => array('header', 'examplesMenu', 'manageCoursesBody'),

			'jsFiles' => array('header', 'examplesMenu', 'examplesBody', 'userControls', 'manageCourses')

		);

		$userInfo = array(

			'userType' => $this->user->getUserType(), // Loads different header for teacher/student

			'userName' => $this->user->getUserName()

		);

		$allTitles = array();

		$allCourses = array();

		/* Loads categorydata into $allTitles */

		$query = $this->ExamplesModel->getTitles($userInfo['userName']);

		foreach ($query as $category)

		{

			// Category

			$query2 = $this->ExamplesModel->getBody($category->categoryName);

			$allTitles[$category->categoryName.",".$category->courseID] = array();

		//	$allTitles[$category->categoryName] = array();

		//	$allTitles[$category->courseID] = array();

						foreach ($query2 as $subCategory)

			{

				// Subcategory

				$query3 = $this->ExamplesModel->getExamples($subCategory->subCategoryName);

				$allTitles[$category->categoryName][$subCategory->subCategoryName] = array();

				foreach ($query3 as $examples)

				{

					//Examples

					$allTitles[$category->categoryName][$subCategory->subCategoryName][] = $examples->exampleName;

				}

			}

		}

		/* Loads views */

		$this->load->view('headTag', array('headTagData' => $headTagData));

		$this->load->view('header', $userInfo);

		$this->load->view('examplesMenu', array('titles' => $allTitles));	

		// Check user login and display message if not logged in

				// User has to be logged in and usertype has to be Tea

		if(!$this->user->isLoggedIn() || $this->user->getUserType() != "Teacher") {

			$this->load->view('manageCoursesMessage', array('message' => 'You do not have access to this page'));

			return;

		}

		/* Loads coursedata into $allCourses */

		$courses = $this->admin_model->getCourses();

		$this->load->view('manageCoursesBody', array("courses" => $courses));	

	}

	/*

	 *	Add course page - handles form submission from index page 

	 *  RESTRICTED-LEVEL: Teacher

	 */

	public function addCourse(){

		$this->load->model('user');

		// User has to be logged in and usertype has to be Tea

		if(!$this->user->isLoggedIn() || $this->user->getUserType() != "Teacher") {

			$this->load->view('manageCoursesMessage', array('message' => 'You do not have access to this page'));

			return;

		}

		/* 

			To do: 

				Login validation

				Input validation

		*/

		if($this->input->post('cid')){

			$this->load->model('admin/admin_model');

			$this->admin_model->addCourse($_POST['cid'], $_POST['name'], $_POST['courseData']);

			redirect("/ManageCourses");

		}

		else{

			redirect("/ManageCourses");

		}

	} 	

	/*

	 *	Edit course page - handles form submission from index page 

	 *  RESTRICTED-LEVEL: Teacher

	 */

	function editCourse() {

		$this->load->model('user');

		// User has to be logged in and usertype has to be Teacher

		if(!$this->user->isLoggedIn() || $this->user->getUserType() != "Teacher") {

			$this->load->view('manageCoursesMessage', array('message' => 'You do not have access to this page'));

			return;

		}

		if($this->input->post('editCourseID')) {

			$this->load->model('admin/admin_model');

			$this->admin_model->editCourse($this->input->post('editCourseID'), $this->input->post('editCourseName'), $this->input->post('editCourseData'));

			redirect('/ManageCourses');

		} else {

			echo "Something went wrong";

		}

	}

	public function validate() {

		//Load required library

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

		//Sets validation rules

		$this->form_validation->set_rules('username', 'Username', 'trim|required|xss_clean');

		$this->form_validation->set_rules('password', 'Password', 'trim|required|xss_clean');

		//Run validation

		if($this->form_validation->run() == FALSE) {

			//Field validation failed. Display login form (with error message).

			$this->drawLoginForm(validation_errors());

		} else {

			$username = $this->input->post('username');

			$password = $this->input->post('password');

			//Try to login

			if ($this->user->login($username, $password)) {

				redirect(base_url().'home', 'refresh');

			} else {

				$this->drawLoginForm('Access denied!');

			}

		}

	}

}

/* End of file ManageCourses.php */

/* Location: ./application/controllers/ExamplesController.php */