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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Global role filter
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*
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* @package core_user
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* @category user
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* @copyright 1999 Martin Dougiamas http://dougiamas.com
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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require_once($CFG->dirroot.'/user/filters/lib.php');
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/**
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* User filter based on global roles.
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* @copyright 1999 Martin Dougiamas http://dougiamas.com
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class user_filter_globalrole extends user_filter_type {
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/**
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* Constructor
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* @param string $name the name of the filter instance
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* @param string $label the label of the filter instance
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* @param boolean $advanced advanced form element flag
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*/
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public function __construct($name, $label, $advanced) {
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parent::__construct($name, $label, $advanced);
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}
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/**
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* Old syntax of class constructor. Deprecated in PHP7.
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*
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* @deprecated since Moodle 3.1
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*/
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public function user_filter_globalrole($name, $label, $advanced) {
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debugging('Use of class name as constructor is deprecated', DEBUG_DEVELOPER);
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self::__construct($name, $label, $advanced);
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}
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/**
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* Returns an array of available roles
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* @return array of availble roles
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*/
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public function get_roles() {
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$context = context_system::instance();
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$roles = array(0 => get_string('anyrole', 'filters')) + get_assignable_roles($context);
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return $roles;
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}
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/**
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* Adds controls specific to this filter in the form.
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* @param object $mform a MoodleForm object to setup
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*/
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public function setupForm(&$mform) {
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$obj =& $mform->addElement('select', $this->_name, $this->_label, $this->get_roles());
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$mform->setDefault($this->_name, 0);
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if ($this->_advanced) {
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$mform->setAdvanced($this->_name);
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}
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}
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/**
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* Retrieves data from the form data
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* @param object $formdata data submited with the form
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* @return mixed array filter data or false when filter not set
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*/
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public function check_data($formdata) {
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$field = $this->_name;
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if (property_exists($formdata, $field) and !empty($formdata->$field)) {
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return array('value' => (int)$formdata->$field);
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}
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return false;
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}
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/**
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* Returns the condition to be used with SQL where
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* @param array $data filter settings
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* @return array sql string and $params
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*/
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public function get_sql_filter($data) {
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global $CFG;
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$value = (int)$data['value'];
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$timenow = round(time(), 100);
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$sql = "id IN (SELECT userid
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FROM {role_assignments} a
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WHERE a.contextid=".SYSCONTEXTID." AND a.roleid=$value)";
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return array($sql, array());
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}
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/**
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* Returns a human friendly description of the filter used as label.
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* @param array $data filter settings
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* @return string active filter label
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*/
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public function get_label($data) {
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global $DB;
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$role = $DB->get_record('role', array('id' => $data['value']));
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$a = new stdClass();
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$a->label = $this->_label;
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$a->value = '"'.role_get_name($role).'"';
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return get_string('globalrolelabel', 'filters', $a);
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}
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}
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