Proyectos de Subversion Moodle

<?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/>.

namespace customfield_text;

/**

 * Class data

 *

 * @package   customfield_text

 * @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 'charvalue';

    }

    /**

     * Add fields for editing a text field.

     *

     * @param \MoodleQuickForm $mform

     */

    public function instance_form_definition(\MoodleQuickForm $mform) {

        $field = $this->get_field();

        $config = $field->get('configdata');

        $type = $config['ispassword'] ? 'password' : 'text';

        $elementname = $this->get_form_element_name();

        $mform->addElement($type, $elementname, $this->get_field()->get_formatted_name(), 'size=' . (int)$config['displaysize']);

        $mform->setType($elementname, PARAM_TEXT);

        if (!empty($config['defaultvalue'])) {

            $mform->setDefault($elementname, $config['defaultvalue']);

        }

        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);

        $maxlength = $this->get_field()->get_configdata_property('maxlength');

        $elementname = $this->get_form_element_name();

        if (($maxlength > 0) && ($maxlength < \core_text::strlen($data[$elementname]))) {

            $errors[$elementname] = get_string('errormaxlength', 'customfield_text', $maxlength);

        }

        return $errors;

    }

    /**

     * Returns the default value as it would be stored in the database (not in human-readable format).

     *

     * @return mixed

     */

    public function get_default_value() {

        return $this->get_field()->get_configdata_property('defaultvalue');

    }

    /**

     * Returns value in a human-readable format

     *

     * @return mixed|null value or null if empty

     */

    public function export_value() {

        $value = parent::export_value();

        if ($value === null) {

            return null;

        }

        $link = $this->get_field()->get_configdata_property('link');

        if ($link) {

            $url = new \moodle_url(str_replace('$$', $this->get_value(), $link));

            $linktarget = $this->get_field()->get_configdata_property('linktarget');

            $attributes = $linktarget ? ['target' => $linktarget] : [];

            $value = \html_writer::link($url, $value, $attributes);

        }

        return $value;

    }

}