chamilo-lms/main/course_description/index.php

<?php
/* For licensing terms, see /license.txt */

/**
* Template (front controller in MVC pattern) used for distpaching
 * to the controllers depend on the current action
* @author Christian Fasanando <christian1827@gmail.com>
* @package chamilo.course_description
*/

require_once __DIR__.'/../inc/global.inc.php';
$current_course_tool = TOOL_COURSE_DESCRIPTION;

// defining constants
define('ADD_BLOCK', 8);

// current section
$this_section = SECTION_COURSES;

// protect a course script
api_protect_course_script(true);

// get actions
$actions = ['listing', 'add', 'edit', 'delete', 'history'];
$action = 'listing';
if (isset($_GET['action']) && in_array($_GET['action'], $actions)) {
    $action = $_GET['action'];
}

$description_type = '';
if (isset($_GET['description_type'])) {
    $description_type = intval($_GET['description_type']);
}

$id = null;
if (isset($_GET['id'])) {
    $id = intval($_GET['id']);
}

if (isset($_GET['isStudentView']) && $_GET['isStudentView'] == 'true') {
    $action = 'listing';
}

// interbreadcrumb
$interbreadcrumb[] = ["url" => "index.php?".api_get_cidreq(), "name" => get_lang('CourseProgram')];
if ($description_type == 1) {
    $interbreadcrumb[] = ["url" => "#", "name" => get_lang('GeneralDescription')];
}
if ($description_type == 2) {
    $interbreadcrumb[] = ["url" => "#", "name" => get_lang('Objectives')];
}
if ($description_type == 3) {
    $interbreadcrumb[] = ["url" => "#", "name" => get_lang('Topics')];
}
if ($description_type == 4) {
    $interbreadcrumb[] = ["url" => "#", "name" => get_lang('Methodology')];
}
if ($description_type == 5) {
    $interbreadcrumb[] = ["url" => "#", "name" => get_lang('CourseMaterial')];
}
if ($description_type == 6) {
    $interbreadcrumb[] = ["url" => "#", "name" => get_lang('HumanAndTechnicalResources')];
}
if ($description_type == 7) {
    $interbreadcrumb[] = ["url" => "#", "name" => get_lang('Assessment')];
}
if ($description_type == 8) {
    $interbreadcrumb[] = ["url" => "#", "name" => get_lang('ThematicAdvance')];
}
if ($description_type >= 9) {
    $interbreadcrumb[] = ["url" => "#", "name" => get_lang('Others')];
}

// course description controller object
$course_description_controller = new CourseDescriptionController();

// Actions to controller
switch ($action) {
    case 'listing':
        $course_description_controller->listing();
        break;
    case 'history':
        $course_description_controller->listing(true);
        break;
    case 'add':
        if (api_is_allowed_to_edit(null, true)) {
            $course_description_controller->add();
        }
        break;
    case 'edit':
        if (api_is_allowed_to_edit(null, true)) {
            $course_description_controller->edit($id, $description_type);
        }
        break;
    case 'delete':
        if (api_is_allowed_to_edit(null, true)) {
            $course_description_controller->destroy($id);
        }
        break;
    default:
        $course_description_controller->listing();
}