3 * Data class for remembering notice-to-status mappings
9 * @author Evan Prodromou <evan@status.net>
10 * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
11 * @link http://status.net/
13 * StatusNet - the distributed open-source microblogging tool
14 * Copyright (C) 2010, StatusNet, Inc.
16 * This program is free software: you can redistribute it and/or modify
17 * it under the terms of the GNU Affero General Public License as published by
18 * the Free Software Foundation, either version 3 of the License, or
19 * (at your option) any later version.
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU Affero General Public License for more details.
26 * You should have received a copy of the GNU Affero General Public License
27 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 if (!defined('STATUSNET')) {
34 require_once INSTALLDIR . '/classes/Memcached_DataObject.php';
37 * Data class for mapping notices to statuses
39 * Notices flow back and forth between Twitter and StatusNet. We use this
40 * table to remember which StatusNet notice corresponds to which Twitter
43 * Note that notice_id is unique only within a single database; if you
44 * want to share this data for some reason, get the notice's URI and use
45 * that instead, since it's universally unique.
49 * @author Evan Prodromou <evan@status.net>
50 * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
51 * @link http://status.net/
56 class Notice_to_status extends Managed_DataObject
58 public $__table = 'notice_to_status'; // table name
59 public $notice_id; // int(4) primary_key not_null
60 public $status_id; // int(4)
61 public $created; // datetime
64 * return table definition for DB_DataObject
66 * DB_DataObject needs to know something about the table to manipulate
67 * instances. This method provides all the DB_DataObject needs to know.
69 * @return array array of column definitions
73 return array('notice_id' => DB_DATAOBJECT_INT + DB_DATAOBJECT_NOTNULL,
74 'status_id' => DB_DATAOBJECT_INT + DB_DATAOBJECT_NOTNULL,
75 'created' => DB_DATAOBJECT_STR + DB_DATAOBJECT_DATE + DB_DATAOBJECT_TIME + DB_DATAOBJECT_NOTNULL);
79 * return key definitions for DB_DataObject
81 * DB_DataObject needs to know about keys that the table has, since it
82 * won't appear in StatusNet's own keys list. In most cases, this will
83 * simply reference your keyTypes() function.
85 * @return array list of key field names
89 return array_keys($this->keyTypes());
93 * return key definitions for Memcached_DataObject
95 * Our caching system uses the same key definitions, but uses a different
96 * method to get them. This key information is used to store and clear
97 * cached data, so be sure to list any key that will be used for static
100 * @return array associative array of key definitions, field name to type:
101 * 'K' for primary key: for compound keys, add an entry for each component;
102 * 'U' for unique keys: compound keys are not well supported here.
106 return array('notice_id' => 'K', 'status_id' => 'U');
110 * Magic formula for non-autoincrementing integer primary keys
112 * If a table has a single integer column as its primary key, DB_DataObject
113 * assumes that the column is auto-incrementing and makes a sequence table
114 * to do this incrementation. Since we don't need this for our class, we
115 * overload this method and return the magic formula that DB_DataObject needs.
117 * @return array magic three-false array that stops auto-incrementing.
119 function sequenceKey()
121 return array(false, false, false);
125 * Save a mapping between a notice and a status
126 * Warning: status_id values may not fit in 32-bit integers.
128 * @param integer $notice_id ID of the notice in StatusNet
129 * @param integer $status_id ID of the status in Twitter
131 * @return Notice_to_status new object for this value
133 static function saveNew($notice_id, $status_id)
135 if (empty($notice_id)) {
136 throw new Exception("Invalid notice_id $notice_id");
138 $n2s = Notice_to_status::staticGet('notice_id', $notice_id);
144 if (empty($status_id)) {
145 throw new Exception("Invalid status_id $status_id");
147 $n2s = Notice_to_status::staticGet('status_id', $status_id);
153 common_debug("Mapping notice {$notice_id} to Twitter status {$status_id}");
155 $n2s = new Notice_to_status();
157 $n2s->notice_id = $notice_id;
158 $n2s->status_id = $status_id;
159 $n2s->created = common_sql_now();