Your IP : 192.168.165.1
<?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/>.
/**
* This file contains the badge earned badge award criteria type class
*
* @package core
* @subpackage badges
* @copyright 2017 Stephen Bourget
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Badge award criteria -- award on badge completion
*
* @package core
* @subpackage badges
* @copyright 2017 Stephen Bourget
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class award_criteria_badge extends award_criteria {
/* @var int Criteria [BADGE_CRITERIA_TYPE_BADGE] */
public $criteriatype = BADGE_CRITERIA_TYPE_BADGE;
public $required_param = 'badge';
public $optional_params = array();
/**
* Get criteria details for displaying to users
* @param string $short Print short version of criteria
* @return string
*/
public function get_details($short = '') {
global $DB, $OUTPUT;
$output = array();
foreach ($this->params as $p) {
$badgename = $DB->get_field('badge', 'name', array('id' => $p['badge']));
if (!$badgename) {
$str = $OUTPUT->error_text(get_string('error:nosuchbadge', 'badges'));
} else {
$str = html_writer::tag('b', '"' . $badgename . '"');
}
$output[] = $str;
}
if ($short) {
return implode(', ', $output);
} else {
return html_writer::alist($output, array(), 'ul');
}
}
/**
* Add appropriate new criteria options to the form
* @param object $mform moodle form
*/
public function get_options(&$mform) {
global $DB;
$none = false;
$availablebadges = null;
$mform->addElement('header', 'first_header', $this->get_title());
$mform->addHelpButton('first_header', 'criteria_' . $this->criteriatype, 'badges');
// Determine if this badge is a course badge or a site badge.
$thisbadge = $DB->get_record('badge', array('id' => $this->badgeid));
if ($thisbadge->type == BADGE_TYPE_SITE) {
// Only list site badges that are enabled.
$select = " type = :site AND (status = :status1 OR status = :status2)";
$params = array('site' => BADGE_TYPE_SITE,
'status1' => BADGE_STATUS_ACTIVE,
'status2' => BADGE_STATUS_ACTIVE_LOCKED);
$availablebadges = $DB->get_records_select_menu('badge', $select, $params, 'name ASC', 'id, name');
} else if ($thisbadge->type == BADGE_TYPE_COURSE) {
// List both site badges and course badges belonging to this course.
$select = " (type = :site OR (type = :course AND courseid = :courseid)) AND (status = :status1 OR status = :status2)";
$params = array('site' => BADGE_TYPE_SITE,
'course' => BADGE_TYPE_COURSE,
'courseid' => $thisbadge->courseid,
'status1' => BADGE_STATUS_ACTIVE,
'status2' => BADGE_STATUS_ACTIVE_LOCKED);
$availablebadges = $DB->get_records_select_menu('badge', $select, $params, 'name ASC', 'id, name');
}
if (!empty($availablebadges)) {
$select = array();
$selected = array();
foreach ($availablebadges as $bid => $badgename) {
if ($bid != $this->badgeid) {
// Do not let it use itself as criteria.
$select[$bid] = format_string($badgename, true);
}
}
if ($this->id !== 0) {
$selected = array_keys($this->params);
}
$settings = array('multiple' => 'multiple', 'size' => 20, 'class' => 'selectbadge', 'required' => 'required');
$mform->addElement('select', 'badge_badges', get_string('addbadge', 'badges'), $select, $settings);
$mform->addRule('badge_badges', get_string('requiredbadge', 'badges'), 'required');
$mform->addHelpButton('badge_badges', 'addbadge', 'badges');
if ($this->id !== 0) {
$mform->setDefault('badge_badges', $selected);
}
} else {
$mform->addElement('static', 'nobadges', '', get_string('error:nobadges', 'badges'));
$none = true;
}
// Add aggregation.
if (!$none) {
$mform->addElement('header', 'aggregation', get_string('method', 'badges'));
$agg = array();
$agg[] =& $mform->createElement('radio', 'agg', '', get_string('allmethodbadges', 'badges'), 1);
$agg[] =& $mform->createElement('radio', 'agg', '', get_string('anymethodbadges', 'badges'), 2);
$mform->addGroup($agg, 'methodgr', '', array('<br/>'), false);
if ($this->id !== 0) {
$mform->setDefault('agg', $this->method);
} else {
$mform->setDefault('agg', BADGE_CRITERIA_AGGREGATION_ANY);
}
}
return array($none, get_string('noparamstoadd', 'badges'));
}
/**
* Save criteria records
*
* @param array $params Values from the form or any other array.
*/
public function save($params = array()) {
$badges = $params['badge_badges'];
unset($params['badge_badges']);
foreach ($badges as $badgeid) {
$params["badge_{$badgeid}"] = $badgeid;
}
parent::save($params);
}
/**
* Review this criteria and decide if it has been completed
*
* @param int $userid User whose criteria completion needs to be reviewed.
* @param bool $filtered An additional parameter indicating that user list
* has been reduced and some expensive checks can be skipped.
*
* @return bool Whether criteria is complete.
*/
public function review($userid, $filtered = false) {
global $DB;
$overall = false;
foreach ($this->params as $param) {
$badge = $DB->get_record('badge', array('id' => $param['badge']));
// See if the user has earned this badge.
$awarded = $DB->get_record('badge_issued', array('badgeid' => $param['badge'], 'userid' => $userid));
// Extra check in case a badge was deleted while this badge is still active.
if (!$badge) {
if ($this->method == BADGE_CRITERIA_AGGREGATION_ALL) {
return false;
} else {
continue;
}
}
if ($this->method == BADGE_CRITERIA_AGGREGATION_ALL) {
if ($awarded) {
$overall = true;
continue;
} else {
return false;
}
} else if ($this->method == BADGE_CRITERIA_AGGREGATION_ANY) {
if ($awarded) {
return true;
} else {
$overall = false;
continue;
}
}
}
return $overall;
}
/**
* Checks criteria for any major problems.
*
* @return array A list containing status and an error message (if any).
*/
public function validate() {
global $DB;
$params = array_keys($this->params);
$method = ($this->method == BADGE_CRITERIA_AGGREGATION_ALL);
$singleparam = (count($params) == 1);
foreach ($params as $param) {
// Perform check if there only one parameter with any type of aggregation,
// Or there are more than one parameter with aggregation ALL.
if (($singleparam || $method) && !$DB->record_exists('badge', array('id' => $param))) {
return array(false, get_string('error:invalidparambadge', 'badges'));
}
}
return array(true, '');
}
/**
* Returns array with sql code and parameters returning all ids
* of users who meet this particular criterion.
*
* @return array list($join, $where, $params)
*/
public function get_completed_criteria_sql() {
$join = '';
$where = '';
$params = array();
if ($this->method == BADGE_CRITERIA_AGGREGATION_ANY) {
// User has received ANY of the required badges.
$join = " LEFT JOIN {badge_issued} bi2 ON bi2.userid = u.id";
$i = 0;
foreach ($this->params as $param) {
if ($i == 0) {
$where .= ' bi2.badgeid = :badgeid'.$i;
} else {
$where .= ' OR bi2.badgeid = :badgeid'.$i;
}
$params['badgeid'.$i] = $param['badge'];
$i++;
}
// MDL-66032 Do not create expression if there are no badges in criteria.
if (!empty($where)) {
$where = ' AND (' . $where . ') ';
}
return array($join, $where, $params);
} else {
// User has received ALL of the required badges.
$join = " LEFT JOIN {badge_issued} bi2 ON bi2.userid = u.id";
$i = 0;
foreach ($this->params as $param) {
$i++;
$where = ' AND bi2.badgeid = :badgeid'.$i;
$params['badgeid'.$i] = $param['badge'];
}
return array($join, $where, $params);
}
}
}