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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/>.
/**
* Select plugin data controller
*
* @package customfield_select
* @copyright 2018 Daniel Neis Araujo <daniel@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace customfield_select;
use core_customfield\api;
defined('MOODLE_INTERNAL') || die;
/**
* Class data
*
* @package customfield_select
* @copyright 2018 Daniel Neis Araujo <daniel@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class data_controller extends \core_customfield\data_controller {
/**
* Return the name of the field where the information is stored
* @return string
*/
public function datafield() : string {
return 'intvalue';
}
/**
* Returns the default value as it would be stored in the database (not in human-readable format).
*
* @return mixed
*/
public function get_default_value() {
$defaultvalue = $this->get_field()->get_configdata_property('defaultvalue');
if ('' . $defaultvalue !== '') {
$options = field_controller::get_options_array($this->get_field());
$key = array_search($defaultvalue, $options);
if ($key !== false) {
return $key;
}
}
return 0;
}
/**
* Add fields for editing a textarea field.
*
* @param \MoodleQuickForm $mform
*/
public function instance_form_definition(\MoodleQuickForm $mform) {
$field = $this->get_field();
$config = $field->get('configdata');
$options = field_controller::get_options_array($field);
$formattedoptions = array();
$context = $this->get_field()->get_handler()->get_configuration_context();
foreach ($options as $key => $option) {
// Multilang formatting with filters.
$formattedoptions[$key] = format_string($option, true, ['context' => $context]);
}
$elementname = $this->get_form_element_name();
$mform->addElement('select', $elementname, $this->get_field()->get_formatted_name(), $formattedoptions);
if (($defaultkey = array_search($config['defaultvalue'], $options)) !== false) {
$mform->setDefault($elementname, $defaultkey);
}
if ($field->get_configdata_property('required')) {
$mform->addRule($elementname, null, 'required', null, 'client');
}
}
/**
* Validates data for this field.
*
* @param array $data
* @param array $files
* @return array
*/
public function instance_form_validation(array $data, array $files) : array {
$errors = parent::instance_form_validation($data, $files);
if ($this->get_field()->get_configdata_property('required')) {
// Standard required rule does not work on select element.
$elementname = $this->get_form_element_name();
if (empty($data[$elementname])) {
$errors[$elementname] = get_string('err_required', 'form');
}
}
return $errors;
}
/**
* Returns value in a human-readable format
*
* @return mixed|null value or null if empty
*/
public function export_value() {
$value = $this->get_value();
if ($this->is_empty($value)) {
return null;
}
$options = field_controller::get_options_array($this->get_field());
if (array_key_exists($value, $options)) {
return format_string($options[$value], true,
['context' => $this->get_field()->get_handler()->get_configuration_context()]);
}
return null;
}
}