user_settings_interests_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/>.

/**
 * Form for user interests tags settings.
 *
 * @package    block_eexcess
 * @copyright  bit media e-solutions GmbH <gerhard.doppler@bitmedia.cc>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

require_once(dirname(dirname(dirname(__FILE__))) . '/config.php');
require_once($CFG->libdir . '/formslib.php');

/**
 * Extend moodle interests form
 *
 * @copyright  bit media e-solutions GmbH <gerhard.doppler@bitmedia.cc>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class block_eexcess_interests_form extends moodleform {
    /**
     * Define this form - called from the parent constructor.
     */
    public function definition() {
        global $CFG;
        global $USER;
        global $DB;

        $deletebuturl = $CFG->wwwroot."/blocks/eexcess/delete_interests_from_db.php";
        $tablename = "block_eexcess_interests";
        $mform =& $this->_form;
        $cats = $DB->get_records($tablename, array("userid" => $USER->id));

        foreach ($cats as $cat) {

            $tags = explode(",", $cat->interests);

            $listr = "";
            foreach ($tags as $tag) {
                $listr .= "<li>$tag</li>";
            }
            $catid = $cat->id;

            if ($cat->active > 0) {
                $checked = "checked=\"true\"";
                $activeclass = "active-cat";
            } else {
                $checked = "";
                $activeclass = "inactive-cat";
            }
            $sesskey = sesskey();
            $html = "<div data-catid=\"{$catid}\" data-sesskey=\"{$sesskey}\"class=\"int-category $activeclass \">";
            $html .= "<a data-catid=\"{$catid}\" href=\"{$deletebuturl}\" class=\"delete_interests\">x</a>";
            $html .= "<span><h4>{$cat->title}</h4></span><label>Use -</label>";
            $html .= "<input type=\"checkbox\" $checked value=\"1\" class=\"active\"/><ul >$listr</ul></div>";
            $mform->addElement('html', $html);
        }
        $mform->addElement('html', '<input type="hidden" id="interest_json" name="interest_json">');
        $buttitle = get_string('interests_tags', 'block_eexcess');
        $mform->addElement('html', '<button type="button" id="id_area_for_tags" class="area_for_tags">'.$buttitle.'</button>');
        $this->add_action_buttons(true, get_string('savechanges'));

    }
}