gnu-social/plugins/Bookmark/Notice_bookmark.php

<?php
/**
 * Data class to mark notices as bookmarks
 *
 * PHP version 5
 *
 * @category Data
 * @package  StatusNet
 * @author   Evan Prodromou <evan@status.net>
 * @license  http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
 * @link     http://status.net/
 *
 * StatusNet - the distributed open-source microblogging tool
 * Copyright (C) 2009, StatusNet, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

if (!defined('STATUSNET')) {
    exit(1);
}

/**
 * For storing the fact that a notice is a bookmark
 *
 * @category Bookmark
 * @package  StatusNet
 * @author   Evan Prodromou <evan@status.net>
 * @license  http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
 * @link     http://status.net/
 *
 * @see      DB_DataObject
 */

class Notice_bookmark extends Memcached_DataObject
{
    public $__table = 'notice_bookmark'; // table name
    public $notice_id;                   // int(4)  primary_key not_null
	public $title;                       // varchar(255)
	public $description;                 // text

    /**
     * Get an instance by key
     *
     * This is a utility method to get a single instance with a given key value.
     *
     * @param string $k Key to use to lookup (usually 'user_id' for this class)
     * @param mixed  $v Value to lookup
     *
     * @return User_greeting_count object found, or null for no hits
     *
     */

    function staticGet($k, $v=null)
    {
        return Memcached_DataObject::staticGet('Notice_bookmark', $k, $v);
    }

    /**
     * return table definition for DB_DataObject
     *
     * DB_DataObject needs to know something about the table to manipulate
     * instances. This method provides all the DB_DataObject needs to know.
     *
     * @return array array of column definitions
     */

    function table()
    {
        return array('notice_id' => DB_DATAOBJECT_INT + DB_DATAOBJECT_NOTNULL,
                     'title' => DB_DATAOBJECT_STR,
					 'description' => DB_DATAOBJECT_STR);
    }

    /**
     * return key definitions for DB_DataObject
     *
     * @return array list of key field names
     */

    function keys()
    {
        return array_keys($this->keyTypes());
    }

    /**
     * return key definitions for Memcached_DataObject
     *
     * @return array associative array of key definitions
     */

    function keyTypes()
    {
        return array('notice_id' => 'K');
    }

    /**
     * Magic formula for non-autoincrementing integer primary keys
     *
     * @return array magic three-false array that stops auto-incrementing.
     */

    function sequenceKey()
    {
        return array(false, false, false);
    }

	static function getByURL($user, $url)
	{
		$file = File::staticGet('url', $url);
		if (!empty($file)) {
			$f2p = new File_to_post();
			$f2p->file_id = $file->id;
			if ($f2p->find()) {
				while ($f2p->fetch()) {
					$n = Notice::staticGet('id', $f2p->post_id);
					if (!empty($n)) {
						if ($n->profile_id == $user->id) {
							$nb = Notice_bookmark::staticGet('notice_id', $n->id);
							if (!empty($nb)) {
								return $nb;
							}
						}
					}
				}
			}
		}
		return null;
	}

	static function saveNew($user, $title, $url, $rawtags, $description, $options=null)
	{
		$nb = self::getByURL($user, $url);

		if (!empty($nb)) {
			throw new ClientException(_('Bookmark already exists.'));
		}

		if (empty($options)) {
			$options = array();
		}

		if (is_string($rawtags)) {
			$rawtags = preg_split('/[\s,]+/', $rawtags);
		}

		$tags = array();
		$replies = array();

		// filter "for:nickname" tags

		foreach ($rawtags as $tag) {
			if (strtolower(mb_substr($tag, 0, 4)) == 'for:') {
				$nickname = mb_substr($tag, 4);
				$other = common_relative_profile($user->getProfile(),
												 $nickname);
				if (!empty($other)) {
					$replies[] = $other->getUri();
				}
			} else {
				$tags[] = common_canonical_tag($tag);
			}
		}

		$hashtags = array();
		$taglinks = array();

		foreach ($tags as $tag) {
			$hashtags[] = '#'.$tag;
			$attrs = array('href' => Notice_tag::url($tag),
						   'rel'  => $tag,
						   'class' => 'tag');
			$taglinks[] = XMLStringer::estring('a', $attrs, $tag);
		}

		$content = sprintf(_('"%s" %s %s %s'),
						   $title,
						   File_redirection::makeShort($url, $user),
						   $description,
						   implode(' ', $hashtags));

		$rendered = sprintf(_('<span class="xfolkentry">'.
							  '<a class="taggedlink" href="%s">%s</a> '.
							  '<span class="description">%s</span> '.
							  '<span class="meta">%s</span>'.
							  '</span>'),
							htmlspecialchars($url),
							htmlspecialchars($title),
							htmlspecialchars($description),
							implode(' ', $taglinks));

		$options = array_merge($options, array('urls' => array($url),
											   'rendered' => $rendered,
											   'tags' => $tags,
											   'replies' => $replies));

		$saved = Notice::saveNew($user->id,
								 $content,
								 'web',
								 $options);

		if (!empty($saved)) {
			$nb = new Notice_bookmark();
			$nb->notice_id   = $saved->id;
			$nb->title       = $title;
			$nb->description = $description;
			$nb->insert();
		}

		return $saved;
	}
}