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