course_form.php

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Block to display enrolled, completed, inprogress and undefined courses according to course completion criteria named 'grade' based on login user.
 *
 * @package    block_search_course
 * @copyright  3i Logic<lms@3ilogic.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL
 */
 
defined('MOODLE_INTERNAL') || die(); 
 
require_once("{$CFG->libdir}/formslib.php");
require_once("lib.php");

/**
 * Display list of enrolled courses based on login user.
 *
 * @copyright 3i Logic<lms@3ilogic.com>
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class course_search_form extends moodleform {

    public function definition() {
        global $CFG, $PAGE;
        $mform    = $this->_form;
        //$instance = $this->_customdata;
        $mform->addElement('text', 'search', get_string('searchcourses', 'block_search_course'));
        $mform->setType('search', PARAM_TEXT);
        $mform->addElement('advcheckbox', 'filtercheckbox', '', 'Disable all filters');
        $mform->disabledIf('searchfromtime', 'filtercheckbox', 'checked');
        $mform->disabledIf('searchtilltime', 'filtercheckbox', 'checked');
        $mform->disabledIf('sortmenu', 'filtercheckbox', 'checked');
        $mform->disabledIf('description', 'filtercheckbox', 'checked');
        $mform->disabledIf('courseformat', 'filtercheckbox', 'checked');
        $mform->disabledIf('completioncriteria', 'filtercheckbox', 'checked');
        $mform->addElement('header', 'filterresults', get_string('filterresults', 'block_search_course'));
        $mform->setExpanded('filterresults', false);
        $mform->addElement('date_time_selector', 'coursestartdate', get_string('searchfromtime', 'block_search_course'), array(
            'optional' => true
        ));
        $mform->setDefault('coursestartdate', 0);
        $mform->addElement('date_time_selector', 'courseenddate', get_string('searchtilltime', 'block_search_course'), array(
            'optional' => true
        ));
        $mform->setDefault('courseenddate', 0);
        $mform->addElement('checkbox', 'description', get_string('description', 'block_search_course'));
        $mform->addElement('select', 'courseformat', get_string('courseformat', 'block_search_course'), array(
            '' => 'Select format',
            'topics' => 'Topics',
            'weeks' => 'Weeks',
            'singleactivity' => 'Single Activity'
        ));
        $mform->addElement('select', 'completioncriteria', get_string('completioncriteria', 'block_search_course'), array(
            '-1' => 'Not set',
            '1' => 'Enable',
            '0' => 'Disable'
        ));
        $mform->addElement('header', 'sortresults', get_string('sortheading', 'block_search_course'));
        $mform->setExpanded('sortresults', false);
        $mform->addElement('select', 'sortmenu', get_string('sortby', 'block_search_course'), array(
            'fullname' => 'By title',
            'shortname' => 'By shortname',
            'startdate' => 'Newest'
        ));
        $this->add_action_buttons(false, get_string('search', 'block_search_course'));
    }
}