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<?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/>.
/**
* Simple value select filter.
*
* @package core_user
* @category user
* @copyright 1999 Martin Dougiamas http://dougiamas.com
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once($CFG->dirroot.'/user/filters/lib.php');
/**
* Generic filter based on a list of values.
* @copyright 1999 Martin Dougiamas http://dougiamas.com
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class user_filter_simpleselect extends user_filter_type {
/**
* options for the list values
* @var array
*/
public $_options;
/**
* @var string
*/
public $_field;
/**
* Constructor
* @param string $name the name of the filter instance
* @param string $label the label of the filter instance
* @param boolean $advanced advanced form element flag
* @param string $field user table filed name
* @param array $options select options
*/
public function __construct($name, $label, $advanced, $field, $options) {
parent::__construct($name, $label, $advanced);
$this->_field = $field;
$this->_options = $options;
}
/**
* Old syntax of class constructor. Deprecated in PHP7.
*
* @deprecated since Moodle 3.1
*/
public function user_filter_simpleselect($name, $label, $advanced, $field, $options) {
debugging('Use of class name as constructor is deprecated', DEBUG_DEVELOPER);
self::__construct($name, $label, $advanced, $field, $options);
}
/**
* Adds controls specific to this filter in the form.
* @param moodleform $mform a MoodleForm object to setup
*/
public function setupForm(&$mform) {
$choices = array('' => get_string('anyvalue', 'filters')) + $this->_options;
$mform->addElement('select', $this->_name, $this->_label, $choices);
if ($this->_advanced) {
$mform->setAdvanced($this->_name);
}
}
/**
* Retrieves data from the form data
* @param object $formdata data submited with the form
* @return mixed array filter data or false when filter not set
*/
public function check_data($formdata) {
$field = $this->_name;
if (property_exists($formdata, $field) and $formdata->$field !== '') {
return array('value' => (string)$formdata->$field);
}
return false;
}
/**
* Returns the condition to be used with SQL where
* @param array $data filter settings
* @return array sql string and $params
*/
public function get_sql_filter($data) {
static $counter = 0;
$name = 'ex_simpleselect'.$counter++;
$value = $data['value'];
$params = array();
$field = $this->_field;
if ($value == '') {
return '';
}
return array("$field=:$name", array($name => $value));
}
/**
* Returns a human friendly description of the filter used as label.
* @param array $data filter settings
* @return string active filter label
*/
public function get_label($data) {
$value = $data['value'];
$a = new stdClass();
$a->label = $this->_label;
$a->value = '"'.s($this->_options[$value]).'"';
$a->operator = get_string('isequalto', 'filters');
return get_string('selectlabel', 'filters', $a);
}
}