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 Memcached_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 * Get an instance by key
66 * This is a utility method to get a single instance with a given key value.
68 * @param string $k Key to use to lookup
69 * @param mixed $v Value to lookup
71 * @return Notice_to_status object found, or null for no hits
75 function staticGet($k, $v=null)
77 return Memcached_DataObject::staticGet('Notice_to_status', $k, $v);
81 * return table definition for DB_DataObject
83 * DB_DataObject needs to know something about the table to manipulate
84 * instances. This method provides all the DB_DataObject needs to know.
86 * @return array array of column definitions
91 return array('notice_id' => DB_DATAOBJECT_INT + DB_DATAOBJECT_NOTNULL,
92 'status_id' => DB_DATAOBJECT_INT + DB_DATAOBJECT_NOTNULL,
93 'created' => DB_DATAOBJECT_STR + DB_DATAOBJECT_DATE + DB_DATAOBJECT_TIME + DB_DATAOBJECT_NOTNULL);
97 * return key definitions for DB_DataObject
99 * DB_DataObject needs to know about keys that the table has, since it
100 * won't appear in StatusNet's own keys list. In most cases, this will
101 * simply reference your keyTypes() function.
103 * @return array list of key field names
108 return array_keys($this->keyTypes());
112 * return key definitions for Memcached_DataObject
114 * Our caching system uses the same key definitions, but uses a different
115 * method to get them. This key information is used to store and clear
116 * cached data, so be sure to list any key that will be used for static
119 * @return array associative array of key definitions, field name to type:
120 * 'K' for primary key: for compound keys, add an entry for each component;
121 * 'U' for unique keys: compound keys are not well supported here.
126 return array('notice_id' => 'K', 'status_id' => 'U');
130 * Magic formula for non-autoincrementing integer primary keys
132 * If a table has a single integer column as its primary key, DB_DataObject
133 * assumes that the column is auto-incrementing and makes a sequence table
134 * to do this incrementation. Since we don't need this for our class, we
135 * overload this method and return the magic formula that DB_DataObject needs.
137 * @return array magic three-false array that stops auto-incrementing.
140 function sequenceKey()
142 return array(false, false, false);
146 * Save a mapping between a notice and a status
148 * @param integer $notice_id ID of the notice in StatusNet
149 * @param integer $status_id ID of the status in Twitter
151 * @return Notice_to_status new object for this value
154 static function saveNew($notice_id, $status_id)
156 $n2s = Notice_to_status::staticGet('notice_id', $notice_id);
162 $n2s = Notice_to_status::staticGet('status_id', $status_id);
168 $n2s = new Notice_to_status();
170 $n2s->notice_id = $notice_id;
171 $n2s->status_id = $status_id;
172 $n2s->created = common_sql_now();