public function index() { $period_id = $this->input->post('period_id'); $filter = $this->inject_stored_filter(); $this->_initialize_student_menu(); $this->_select_student_menu_pagetag('courses'); $this->parser->add_css_file('frontend_courses.css'); $this->parser->add_js_file('courses/selection.js'); $cache_id = $this->usermanager->get_student_cache_id('period_' . ($period_id ? $period_id : @$filter['period_id'])); if (!$this->_is_cache_enabled() || !$this->parser->isCached($this->parser->find_view('frontend/courses/index.tpl'), $cache_id)) { $periods = new Period(); if (intval($period_id) == 0) { if (isset($filter['period_id'])) { $periods->where('id', $filter['period_id']); } else { $periods->limit(1); } } else { $periods->where('id', $period_id); } $periods->order_by('sorting', 'asc')->get(); $filter['period_id'] = $periods->id; $this->store_filter($filter); $this->inject_period_options(); $this->parser->assign(array('periods' => $periods)); } $this->parser->parse('frontend/courses/index.tpl', array(), FALSE, $this->_is_cache_enabled(), $cache_id); }