File content/comments/extension-point/CommentsTopics.class.php

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<?php
/**
 * @package     Content
 * @subpackage  Comments\extension-point
 * @copyright   &copy; 2005-2019 PHPBoost
 * @license     https://www.gnu.org/licenses/gpl-3.0.html GNU/GPL-3.0
 * @author      Kevin MASSY <reidlos@phpboost.com>
 * @version     PHPBoost 5.2 - last update: 2014 12 22
 * @since       PHPBoost 3.0 - 2012 05 22
*/

class CommentsTopics implements CommentsExtensionPoint
{
    private $comments_topics = array();

    public function __construct(Array $comments_topics)
    {
        if (is_array($comments_topics))
        {
            foreach ($comments_topics as $topic)
            {
                if (!$this->topic_exists($topic->get_topic_identifier()))
                {
                    $this->comments_topics[$topic->get_topic_identifier()] = $topic;
                }
                else
                {
                    throw new Exception($topic->get_topic_identifier() . ' already exists');
                }
            }
        }
    }

    public function get_comments_topics()
    {
        return $this->comments_topics;
    }

    public function get_comments_topic($identifier = CommentsTopic::DEFAULT_TOPIC_IDENTIFIER)
    {
        if ($this->topic_exists($identifier))
        {
            return $this->comments_topics[$identifier];
        }
        throw new Exception($identifier . ' not exists');
    }

    public function topic_exists($identifier)
    {
        return array_key_exists($identifier, $this->comments_topics);
    }
}
?>