semester.php

<?php
/**
 * semester.php - controller class for the semester administration
 *
 * @author    Jan-Hendrik Willms <tleilax+studip@gmail.com>
 * @author    Hermann Schröder <hermann.schroeder@uni-oldenburg.de>
 * @author    Michael Riehemann <michael.riehemann@uni-oldenburg.de>
 * @license   GPL2 or any later version
 * @category  Stud.IP
 * @package   admin
 * @since     2.1
 */

class Admin_SemesterController extends AuthenticatedController
{
    /**
     * common tasks for all actions
     *
     * @param String $action Action that has been called
     * @param Array  $args   List of arguments
     */
    public function before_filter (&$action, &$args)
    {
        parent::before_filter($action, $args);

        // user must have root permission
        $GLOBALS['perm']->check('root');

        //setting title and navigation
        PageLayout::setTitle(_('Verwaltung von Semestern'));
        Navigation::activateItem('/admin/locations/semester');

        // Extract and bind filter option
        $this->filter = Request::option('filter');
        if ($this->filter) {
            URLHelper::addLinkParam('filter', $this->filter);
        }

        // Setup sidebar
        $this->setSidebar();
    }

    /**
     * Display all informations about the semesters
     */
    public function index_action()
    {
        $this->semesters = array_reverse(Semester::getAll());

        // Filter data?
        if ($this->filter === 'current') {
            $this->semesters = array_filter($this->semesters, function ($semester) {
                return !$semester->past;
            });
        } elseif ($this->filter === 'past') {
            $this->semesters = array_filter($this->semesters, function ($semester) {
                return $semester->past;
            });
        }
    }

    /**
     * This method edits an existing semester or creates a new semester.
     *
     * @param mixed $id Id of the semester or null to create a semester.
     */
    public function edit_action($id = null)
    {
        $this->semester = new Semester($id);