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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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* Transforms data to image element.
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*
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* @package block_dash
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* @copyright 2019 bdecent gmbh <https://bdecent.de>
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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 block_dash\local\data_grid\field\attribute;
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/**
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* Transforms data to image element.
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*
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* @package block_dash
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*/
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class image_attribute extends abstract_field_attribute {
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/**
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* After records are relieved from database each field has a chance to transform the data.
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* Example: Convert unix timestamp into a human readable date format
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*
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* @param mixed $data Raw data associated with this field definition.
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* @param \stdClass $record Full record from database.
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* @return mixed
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*/
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public function transform_data($data, \stdClass $record) {
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if (($url = $this->get_option('customurl')) && ($labelfield = $this->get_option('label_field'))) {
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$url = $this->update_placeholders($record, urldecode($url));
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return \html_writer::img($url, $this->get_option('title'), [
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'class' => 'img-responsive',
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'role' => 'presentation ',
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]);
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}
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if ($data) {
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return \html_writer::img($data, $this->get_option('title'), [
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'class' => 'img-responsive',
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'role' => 'presentation ',
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]);
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}
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return $data;
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}
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/**
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* Need custom value for transform data, which table uses the attribute dynamically.
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*
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* @return bool
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*/
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public function is_needs_construct_data() {
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return true;
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}
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/**
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* Set the options before transform the data. this will usefull for dynamic field setup.
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*
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* @param string $field
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* @param string $customvalue
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*
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* @return void
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*/
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public function set_transform_field($field, $customvalue=null) {
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$this->set_option('label_field', $field);
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if ($customvalue !== null) {
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$this->set_option('customurl', new \moodle_url($customvalue));
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}
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}
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}
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