3 * Table Definition for fave
6 class Fave extends Managed_DataObject
8 public $__table = 'fave'; // table name
9 public $notice_id; // int(4) primary_key not_null
10 public $user_id; // int(4) primary_key not_null
11 public $uri; // varchar(191) not 255 because utf8mb4 takes more space not 255 because utf8mb4 takes more space
12 public $created; // datetime multiple_key not_null
13 public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
15 public static function schemaDef()
19 'notice_id' => array('type' => 'int', 'not null' => true, 'description' => 'notice that is the favorite'),
20 'user_id' => array('type' => 'int', 'not null' => true, 'description' => 'user who likes this notice'),
21 'uri' => array('type' => 'varchar', 'length' => 191, 'description' => 'universally unique identifier, usually a tag URI'),
22 'created' => array('type' => 'datetime', 'not null' => true, 'description' => 'date this record was created'),
23 'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
25 'primary key' => array('notice_id', 'user_id'),
26 'unique keys' => array(
27 'fave_uri_key' => array('uri'),
29 'foreign keys' => array(
30 'fave_notice_id_fkey' => array('notice', array('notice_id' => 'id')),
31 'fave_user_id_fkey' => array('profile', array('user_id' => 'id')), // note: formerly referenced notice.id, but we can now record remote users' favorites
34 'fave_notice_id_idx' => array('notice_id'),
35 'fave_user_id_idx' => array('user_id', 'modified'),
36 'fave_modified_idx' => array('modified'),
42 * Save a favorite record.
43 * @fixme post-author notification should be moved here
45 * @param Profile $actor the local or remote Profile who favorites
46 * @param Notice $target the notice that is favorited
47 * @return Fave record on success
48 * @throws Exception on failure
50 static function addNew(Profile $actor, Notice $target) {
51 if (self::existsForProfile($target, $actor)) {
52 // TRANS: Client error displayed when trying to mark a notice as favorite that already is a favorite.
53 throw new AlreadyFulfilledException(_('You have already favorited this!'));
56 $act = new Activity();
57 $act->type = ActivityObject::ACTIVITY;
58 $act->verb = ActivityVerb::FAVORITE;
60 $act->id = self::newUri($actor, $target, common_sql_date($act->time));
61 $act->title = _("Favor");
62 // TRANS: Message that is the "content" of a favorite (%1$s is the actor's nickname, %2$ is the favorited
63 // notice's nickname and %3$s is the content of the favorited notice.)
64 $act->content = sprintf(_('%1$s favorited something by %2$s: %3$s'),
65 $actor->getNickname(), $target->getProfile()->getNickname(),
66 $target->rendered ?: $target->content);
67 $act->actor = $actor->asActivityObject();
68 $act->target = $target->asActivityObject();
69 $act->objects = array(clone($act->target));
71 $url = common_local_url('AtomPubShowFavorite', array('profile'=>$actor->id, 'notice'=>$target->id));
72 $act->selfLink = $url;
73 $act->editLink = $url;
75 // saveActivity will in turn also call Fave::saveActivityObject which does
76 // what this function used to do before this commit.
77 $stored = Notice::saveActivity($act, $actor);
82 public function removeEntry(Profile $actor, Notice $target)
85 $fave->user_id = $actor->getID();
86 $fave->notice_id = $target->getID();
87 if (!$fave->find(true)) {
88 // TRANS: Client error displayed when trying to remove a 'favor' when there is none in the first place.
89 throw new AlreadyFulfilledException(_('This is already not favorited.'));
92 $result = $fave->delete();
93 if ($result === false) {
94 common_log_db_error($fave, 'DELETE', __FILE__);
95 // TRANS: Server error displayed when removing a favorite from the database fails.
96 throw new ServerException(_('Could not delete favorite.'));
99 Fave::blowCacheForProfileId($actor->getID());
100 Fave::blowCacheForNoticeId($target->getID());
103 // exception throwing takeover!
104 public function insert()
106 if (parent::insert()===false) {
107 common_log_db_error($this, 'INSERT', __FILE__);
108 throw new ServerException(sprintf(_m('Could not store new object of type %s'), get_called_class()));
110 self::blowCacheForProfileId($this->user_id);
111 self::blowCacheForNoticeId($this->notice_id);
115 public function delete($useWhere=false)
117 $profile = Profile::getKV('id', $this->user_id);
118 $notice = Notice::getKV('id', $this->notice_id);
122 if (Event::handle('StartDisfavorNotice', array($profile, $notice, &$result))) {
124 $result = parent::delete($useWhere);
126 self::blowCacheForProfileId($this->user_id);
127 self::blowCacheForNoticeId($this->notice_id);
128 self::blow('popular');
131 Event::handle('EndDisfavorNotice', array($profile, $notice));
138 function stream($user_id, $offset=0, $limit=NOTICES_PER_PAGE, $own=false, $since_id=0, $max_id=0)
140 $stream = new FaveNoticeStream($user_id, $own);
142 return $stream->getNotices($offset, $limit, $since_id, $max_id);
145 function idStream($user_id, $offset=0, $limit=NOTICES_PER_PAGE, $own=false, $since_id=0, $max_id=0)
147 $stream = new FaveNoticeStream($user_id, $own);
149 return $stream->getNoticeIds($offset, $limit, $since_id, $max_id);
152 function asActivity()
154 $target = $this->getTarget();
155 $actor = $this->getActor();
157 $act = new Activity();
159 $act->verb = ActivityVerb::FAVORITE;
161 // FIXME: rationalize this with URL below
163 $act->id = $this->getUri();
165 $act->time = strtotime($this->created);
166 // TRANS: Activity title when marking a notice as favorite.
167 $act->title = _("Favor");
168 // TRANS: Message that is the "content" of a favorite (%1$s is the actor's nickname, %2$ is the favorited
169 // notice's nickname and %3$s is the content of the favorited notice.)
170 $act->content = sprintf(_('%1$s favorited something by %2$s: %3$s'),
171 $actor->getNickname(), $target->getProfile()->getNickname(),
172 $target->rendered ?: $target->content);
174 $act->actor = $actor->asActivityObject();
175 $act->target = $target->asActivityObject();
176 $act->objects = array(clone($act->target));
178 $url = common_local_url('AtomPubShowFavorite',
179 array('profile' => $actor->id,
180 'notice' => $target->id));
182 $act->selfLink = $url;
183 $act->editLink = $url;
188 static function existsForProfile($notice, Profile $scoped)
190 $fave = self::pkeyGet(array('user_id'=>$scoped->id, 'notice_id'=>$notice->id));
192 return ($fave instanceof Fave);
196 * Fetch a stream of favorites by profile
198 * @param integer $profileId Profile that faved
199 * @param integer $offset Offset from last
200 * @param integer $limit Number to get
202 * @return mixed stream of faves, use fetch() to iterate
204 * @todo Cache results
205 * @todo integrate with Fave::stream()
208 static function byProfile($profileId, $offset, $limit)
212 $fav->user_id = $profileId;
214 $fav->orderBy('modified DESC');
216 $fav->limit($offset, $limit);
223 static function countByProfile(Profile $profile)
225 $c = Cache::instance();
227 $cnt = $c->get(Cache::key('fave:count_by_profile:'.$profile->id));
228 if (is_integer($cnt)) {
234 $faves->user_id = $profile->id;
235 $cnt = (int) $faves->count('notice_id');
238 $c->set(Cache::key('fave:count_by_profile:'.$profile->id), $cnt);
244 static protected $_faves = array();
247 * All faves of this notice
249 * @param Notice $notice A notice we wish to get faves for (may still be ArrayWrapper)
251 * @return array Array of Fave objects
253 static public function byNotice($notice)
255 if (!isset(self::$_faves[$notice->id])) {
256 self::fillFaves(array($notice->id));
258 return self::$_faves[$notice->id];
261 static public function fillFaves(array $notice_ids)
263 $faveMap = Fave::listGet('notice_id', $notice_ids);
264 self::$_faves = array_replace(self::$_faves, $faveMap);
267 static public function blowCacheForProfileId($profile_id)
269 $cache = Cache::instance();
271 // Faves don't happen chronologically, so we need to blow
273 $cache->delete(Cache::key('fave:ids_by_user:'.$profile_id));
274 $cache->delete(Cache::key('fave:ids_by_user:'.$profile_id.';last'));
275 $cache->delete(Cache::key('fave:ids_by_user_own:'.$profile_id));
276 $cache->delete(Cache::key('fave:ids_by_user_own:'.$profile_id.';last'));
277 $cache->delete(Cache::key('fave:count_by_profile:'.$profile_id));
280 static public function blowCacheForNoticeId($notice_id)
282 $cache = Cache::instance();
284 $cache->delete(Cache::key('fave:list-ids:notice_id:'.$notice_id));
288 // Remember that we want the _activity_ notice here, not faves applied
289 // to the supplied Notice (as with byNotice)!
290 static public function fromStored(Notice $stored)
292 $class = get_called_class();
293 $object = new $class;
294 $object->uri = $stored->uri;
295 if (!$object->find(true)) {
296 throw new NoResultException($object);
302 * Retrieves the _targeted_ notice of a verb (such as the notice that was
303 * _favorited_, but not the favorite activity itself).
305 * @param Notice $stored The activity notice.
307 * @throws NoResultException when it can't find what it's looking for.
309 static public function getTargetFromStored(Notice $stored)
311 return self::fromStored($stored)->getTarget();
314 static public function getObjectType()
319 public function asActivityObject(Profile $scoped=null)
321 $actobj = new ActivityObject();
322 $actobj->id = $this->getUri();
323 $actobj->type = ActivityUtils::resolveUri(self::getObjectType());
324 $actobj->actor = $this->getActorObject();
325 $actobj->target = $this->getTargetObject();
326 $actobj->objects = array(clone($actobj->target));
327 $actobj->verb = ActivityVerb::FAVORITE;
328 $actobj->title = ActivityUtils::verbToTitle($actobj->verb);
329 $actobj->content = $this->getTarget()->rendered ?: $this->getTarget()->content;
334 * @param ActivityObject $actobj The _favored_ notice (which we're "in-reply-to")
335 * @param Notice $stored The _activity_ notice, i.e. the favor itself.
337 static public function parseActivityObject(ActivityObject $actobj, Notice $stored)
339 $local = ActivityUtils::findLocalObject($actobj->getIdentifiers());
340 if (!$local instanceof Notice) {
341 // $local always returns something, but this was not what we expected. Something is wrong.
342 throw new Exception('Something other than a Notice was returned from findLocalObject');
345 $actor = $stored->getProfile();
346 $object = new Fave();
347 $object->user_id = $stored->getProfile()->id;
348 $object->notice_id = $local->id;
349 $object->uri = $stored->uri;
350 $object->created = $stored->created;
351 $object->modified = $stored->modified;
355 static public function extendActivity(Notice $stored, Activity $act, Profile $scoped=null)
357 $target = self::getTargetFromStored($stored);
359 // The following logic was copied from StatusNet's Activity plugin
360 if (ActivityUtils::compareTypes($target->verb, array(ActivityVerb::POST))) {
361 // "I like the thing you posted"
362 $act->objects = $target->asActivity()->objects;
364 // "I like that you did whatever you did"
365 $act->target = $target->asActivityObject();
366 $act->objects = array(clone($act->target));
368 $act->context->replyToID = $target->getUri();
369 $act->context->replyToUrl = $target->getUrl();
370 $act->title = ActivityUtils::verbToTitle($act->verb);
373 static function saveActivityObject(ActivityObject $actobj, Notice $stored)
375 $object = self::parseActivityObject($actobj, $stored);
376 $object->insert(); // exception throwing in Fave's case!
378 self::blowCacheForProfileId($object->user_id);
379 self::blowCacheForNoticeId($object->notice_id);
380 self::blow('popular');
382 Event::handle('EndFavorNotice', array($stored->getProfile(), $object->getTarget()));
386 public function getAttentionArray() {
387 // not all objects can/should carry attentions, so we don't require extending this
388 // the format should be an array with URIs to mentioned profiles
392 public function getTarget()
394 // throws exception on failure
395 $target = new Notice();
396 $target->id = $this->notice_id;
397 if (!$target->find(true)) {
398 throw new NoResultException($target);
404 public function getTargetObject()
406 return $this->getTarget()->asActivityObject();
409 protected $_stored = array();
411 public function getStored()
413 if (!isset($this->_stored[$this->uri])) {
414 $stored = new Notice();
415 $stored->uri = $this->uri;
416 if (!$stored->find(true)) {
417 throw new NoResultException($stored);
419 $this->_stored[$this->uri] = $stored;
421 return $this->_stored[$this->uri];
424 public function getActor()
426 $profile = new Profile();
427 $profile->id = $this->user_id;
428 if (!$profile->find(true)) {
429 throw new NoResultException($profile);
434 public function getActorObject()
436 return $this->getActor()->asActivityObject();
439 public function getUri()
441 if (!empty($this->uri)) {
445 // We (should've in this case) created it ourselves, so we tag it ourselves
446 return self::newUri($this->getActor(), $this->getTarget(), $this->created);
449 static function newUri(Profile $actor, Managed_DataObject $target, $created=null)
451 if (is_null($created)) {
452 $created = common_sql_now();
454 return TagURI::mint(strtolower(get_called_class()).':%d:%s:%d:%s',
456 ActivityUtils::resolveUri(self::getObjectType(), true),
458 common_date_iso8601($created));