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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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* Contains event class for displaying a list of calendar events grouped by course id.
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*
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* @package core_calendar
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* @copyright 2017 Ryan Wyllie <ryan@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 core_calendar\external;
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defined('MOODLE_INTERNAL') || die();
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use \core\external\exporter;
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use \renderer_base;
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/**
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* Class for displaying a list of calendar events grouped by course id.
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*
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* This class uses the events relateds cache in order to get the related
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* data for exporting an event without having to naively hit the database
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* for each event.
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*
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* @package core_calendar
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* @copyright 2017 Ryan Wyllie <ryan@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 events_grouped_by_course_exporter extends exporter {
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/**
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* @var array $events An array of event_interface objects
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* grouped and index by course id.
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*/
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protected $eventsbycourse;
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/**
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* Constructor.
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*
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* @param array $eventsbycourse An array of event_interface objects
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* @param array $related An array of related objects
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*/
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public function __construct(array $eventsbycourse, $related = []) {
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$this->eventsbycourse = $eventsbycourse;
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parent::__construct([], $related);
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}
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/**
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* Return the list of additional properties.
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*
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* @return array
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*/
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protected static function define_other_properties() {
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return [
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'groupedbycourse' => [
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'type' => events_same_course_exporter::read_properties_definition(),
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'multiple' => true,
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'default' => [],
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],
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];
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}
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/**
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* Get the additional values to inject while exporting.
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*
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* @param renderer_base $output The renderer.
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* @return array Keys are the property names, values are their values.
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*/
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protected function get_other_values(renderer_base $output) {
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$return = [];
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$cache = $this->related['cache'];
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foreach ($this->eventsbycourse as $courseid => $events) {
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$eventsexporter = new events_same_course_exporter(
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$courseid, $events, ['cache' => $cache]);
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$return['groupedbycourse'][] = $eventsexporter->export($output);
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}
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return $return;
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}
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/**
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* Returns a list of objects that are related.
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*
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* @return array
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*/
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protected static function define_related() {
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return [
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'cache' => 'core_calendar\external\events_related_objects_cache',
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];
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}
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}
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