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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/>.
/**
* Posts renderer.
*
* @package mod_forum
* @copyright 2019 Ryan Wyllie <ryan@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace mod_forum\local\renderers;
defined('MOODLE_INTERNAL') || die();
use mod_forum\local\builders\exported_posts as exported_posts_builder;
use renderer_base;
use stdClass;
/**
* Posts renderer class.
*
* @copyright 2019 Ryan Wyllie <ryan@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class posts {
/** @var renderer_base $renderer Renderer base */
private $renderer;
/** @var exported_posts_builder $exportedpostsbuilder Builder for building exported posts */
private $exportedpostsbuilder;
/** @var string $template The template to render */
private $template;
/** @var callable $postprocessfortemplate Function to process exported posts before template rendering */
private $postprocessfortemplate;
/**
* Constructor.
*
* @param renderer_base $renderer Renderer base
* @param exported_posts_builder $exportedpostsbuilder Builder for building exported posts
* @param string $template The template to render
* @param callable $postprocessfortemplate Function to process exported posts before template rendering
*/
public function __construct(
renderer_base $renderer,
exported_posts_builder $exportedpostsbuilder,
string $template,
callable $postprocessfortemplate = null
) {
$this->renderer = $renderer;
$this->exportedpostsbuilder = $exportedpostsbuilder;
$this->template = $template;
$this->postprocessfortemplate = $postprocessfortemplate;
}
/**
* Render the given posts for the forums and discussions.
*
* @param stdClass $user The user viewing the posts
* @param forum_entity[] $forums A list of all forums for these posts
* @param discussion_entity[] $discussions A list of all discussions for these posts
* @param post_entity[] $posts The posts to render
* @return string
*/
public function render(
stdClass $user,
array $forums,
array $discussions,
array $posts
) : string {
// Format the forums and discussion to make them more easily accessed later.
$forums = array_reduce($forums, function($carry, $forum) {
$carry[$forum->get_id()] = $forum;
return $carry;
}, []);
$discussions = array_reduce($discussions, function($carry, $discussion) {
$carry[$discussion->get_id()] = $discussion;
return $carry;
}, []);
$exportedposts = $this->exportedpostsbuilder->build(
$user,
$forums,
$discussions,
$posts
);
if ($this->postprocessfortemplate !== null) {
// We've got some post processing to do!
$exportedposts = ($this->postprocessfortemplate)($exportedposts, $forums, $discussions, $user);
}
return $this->renderer->render_from_template(
$this->template,
['posts' => array_values($exportedposts)]
);
}
}