We don't guess the current profile anymore if the value of the profile === -1 Also sets $this->scoped for all ScopingNoticeStream inheritors, which just like in an Action can be null if we're not scoped in any way (logged in).
456 lines
17 KiB
PHP
456 lines
17 KiB
PHP
<?php
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/**
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* Table Definition for fave
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*/
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class Fave extends Managed_DataObject
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{
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public $__table = 'fave'; // table name
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public $notice_id; // int(4) primary_key not_null
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public $user_id; // int(4) primary_key not_null
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public $uri; // varchar(191) not 255 because utf8mb4 takes more space not 255 because utf8mb4 takes more space
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public $created; // datetime multiple_key not_null
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public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
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public static function schemaDef()
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{
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return array(
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'fields' => array(
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'notice_id' => array('type' => 'int', 'not null' => true, 'description' => 'notice that is the favorite'),
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'user_id' => array('type' => 'int', 'not null' => true, 'description' => 'user who likes this notice'),
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'uri' => array('type' => 'varchar', 'length' => 191, 'description' => 'universally unique identifier, usually a tag URI'),
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'created' => array('type' => 'datetime', 'not null' => true, 'description' => 'date this record was created'),
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'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
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),
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'primary key' => array('notice_id', 'user_id'),
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'unique keys' => array(
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'fave_uri_key' => array('uri'),
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),
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'foreign keys' => array(
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'fave_notice_id_fkey' => array('notice', array('notice_id' => 'id')),
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'fave_user_id_fkey' => array('profile', array('user_id' => 'id')), // note: formerly referenced notice.id, but we can now record remote users' favorites
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),
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'indexes' => array(
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'fave_notice_id_idx' => array('notice_id'),
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'fave_user_id_idx' => array('user_id', 'modified'),
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'fave_modified_idx' => array('modified'),
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),
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);
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}
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/**
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* Save a favorite record.
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* @fixme post-author notification should be moved here
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*
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* @param Profile $actor the local or remote Profile who favorites
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* @param Notice $target the notice that is favorited
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* @return Fave record on success
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* @throws Exception on failure
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*/
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static function addNew(Profile $actor, Notice $target) {
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if (self::existsForProfile($target, $actor)) {
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// TRANS: Client error displayed when trying to mark a notice as favorite that already is a favorite.
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throw new AlreadyFulfilledException(_('You have already favorited this!'));
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}
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$act = new Activity();
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$act->type = ActivityObject::ACTIVITY;
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$act->verb = ActivityVerb::FAVORITE;
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$act->time = time();
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$act->id = self::newUri($actor, $target, common_sql_date($act->time));
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$act->title = _("Favor");
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// TRANS: Message that is the "content" of a favorite (%1$s is the actor's nickname, %2$ is the favorited
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// notice's nickname and %3$s is the content of the favorited notice.)
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$act->content = sprintf(_('%1$s favorited something by %2$s: %3$s'),
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$actor->getNickname(), $target->getProfile()->getNickname(),
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$target->getRendered());
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$act->actor = $actor->asActivityObject();
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$act->target = $target->asActivityObject();
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$act->objects = array(clone($act->target));
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$url = common_local_url('AtomPubShowFavorite', array('profile'=>$actor->id, 'notice'=>$target->id));
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$act->selfLink = $url;
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$act->editLink = $url;
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// saveActivity will in turn also call Fave::saveActivityObject which does
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// what this function used to do before this commit.
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$stored = Notice::saveActivity($act, $actor);
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return $stored;
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}
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public function removeEntry(Profile $actor, Notice $target)
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{
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$fave = new Fave();
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$fave->user_id = $actor->getID();
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$fave->notice_id = $target->getID();
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if (!$fave->find(true)) {
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// TRANS: Client error displayed when trying to remove a 'favor' when there is none in the first place.
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throw new AlreadyFulfilledException(_('This is already not favorited.'));
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}
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$result = $fave->delete();
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if ($result === false) {
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common_log_db_error($fave, 'DELETE', __FILE__);
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// TRANS: Server error displayed when removing a favorite from the database fails.
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throw new ServerException(_('Could not delete favorite.'));
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}
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Fave::blowCacheForProfileId($actor->getID());
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Fave::blowCacheForNoticeId($target->getID());
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}
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// exception throwing takeover!
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public function insert()
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{
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if (parent::insert()===false) {
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common_log_db_error($this, 'INSERT', __FILE__);
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throw new ServerException(sprintf(_m('Could not store new object of type %s'), get_called_class()));
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}
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self::blowCacheForProfileId($this->user_id);
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self::blowCacheForNoticeId($this->notice_id);
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return $this;
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}
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public function delete($useWhere=false)
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{
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$result = null;
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try {
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$profile = $this->getActor();
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$notice = $this->getTarget();
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if (Event::handle('StartDisfavorNotice', array($profile, $notice, &$result))) {
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$result = parent::delete($useWhere);
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if ($result !== false) {
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Event::handle('EndDisfavorNotice', array($profile, $notice));
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}
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}
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} catch (NoResultException $e) {
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// In case there's some inconsistency where the profile or notice was deleted without losing the fave db entry
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common_log(LOG_INFO, '"'.get_class($e->obj).'" with id=='.var_export($e->obj->id, true).' object not found when deleting favorite, ignoring...');
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} catch (EmptyIdException $e) {
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// Some buggy instances of GNU social have had favorites with notice id==0 stored in the database
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common_log(LOG_INFO, _ve($e->getMessage()));
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}
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// If we catch an exception above, then $result===null because parent::delete only returns an int>=0 or boolean false
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if (is_null($result)) {
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// Delete it without the event, as something is wrong and we don't want it anyway.
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$result = parent::delete($useWhere);
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}
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// Err, apparently we can reference $this->user_id after parent::delete,
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// I guess it's safe because this is the order it was before!
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self::blowCacheForProfileId($this->user_id);
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self::blowCacheForNoticeId($this->notice_id);
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self::blow('popular');
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return $result;
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}
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// FIXME: Instead of $own, send the scoped Profile so we can pass it along directly to FaveNoticeStream
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// and preferrably we should get a Profile instead of $user_id
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static function stream($user_id, $offset=0, $limit=NOTICES_PER_PAGE, $own=false, $since_id=0, $max_id=0)
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{
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$target = Profile::getByID($user_id);
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$stream = new FaveNoticeStream($target, ($own ? $target : null));
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return $stream->getNotices($offset, $limit, $since_id, $max_id);
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}
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// FIXME: Instead of $own, send the scoped Profile so we can pass it along directly to FaveNoticeStream
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// and preferrably we should get a Profile instead of $user_id
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function idStream($user_id, $offset=0, $limit=NOTICES_PER_PAGE, $own=false, $since_id=0, $max_id=0)
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{
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$target = Profile::getByID($user_id);
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$stream = new FaveNoticeStream($target, ($own ? $target : null));
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return $stream->getNoticeIds($offset, $limit, $since_id, $max_id);
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}
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function asActivity()
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{
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$target = $this->getTarget();
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$actor = $this->getActor();
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$act = new Activity();
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$act->verb = ActivityVerb::FAVORITE;
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// FIXME: rationalize this with URL below
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$act->id = $this->getUri();
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$act->time = strtotime($this->created);
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// TRANS: Activity title when marking a notice as favorite.
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$act->title = _("Favor");
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// TRANS: Message that is the "content" of a favorite (%1$s is the actor's nickname, %2$ is the favorited
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// notice's nickname and %3$s is the content of the favorited notice.)
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$act->content = sprintf(_('%1$s favorited something by %2$s: %3$s'),
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$actor->getNickname(), $target->getProfile()->getNickname(),
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$target->getRendered());
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$act->actor = $actor->asActivityObject();
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$act->target = $target->asActivityObject();
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$act->objects = array(clone($act->target));
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$url = common_local_url('AtomPubShowFavorite',
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array('profile' => $actor->id,
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'notice' => $target->id));
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$act->selfLink = $url;
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$act->editLink = $url;
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return $act;
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}
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static function existsForProfile($notice, Profile $scoped)
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{
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$fave = self::pkeyGet(array('user_id'=>$scoped->id, 'notice_id'=>$notice->id));
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return ($fave instanceof Fave);
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}
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/**
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* Fetch a stream of favorites by profile
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*
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* @param integer $profileId Profile that faved
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* @param integer $offset Offset from last
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* @param integer $limit Number to get
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*
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* @return mixed stream of faves, use fetch() to iterate
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*
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* @todo Cache results
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* @todo integrate with Fave::stream()
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*/
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static function byProfile($profileId, $offset, $limit)
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{
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$fav = new Fave();
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$fav->user_id = $profileId;
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$fav->orderBy('modified DESC');
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$fav->limit($offset, $limit);
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$fav->find();
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return $fav;
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}
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static function countByProfile(Profile $profile)
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{
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$c = Cache::instance();
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if (!empty($c)) {
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$cnt = $c->get(Cache::key('fave:count_by_profile:'.$profile->id));
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if (is_integer($cnt)) {
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return $cnt;
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}
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}
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$faves = new Fave();
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$faves->user_id = $profile->id;
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$cnt = (int) $faves->count('notice_id');
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if (!empty($c)) {
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$c->set(Cache::key('fave:count_by_profile:'.$profile->id), $cnt);
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}
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return $cnt;
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}
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static protected $_faves = array();
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/**
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* All faves of this notice
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*
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* @param Notice $notice A notice we wish to get faves for (may still be ArrayWrapper)
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*
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* @return array Array of Fave objects
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*/
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static public function byNotice($notice)
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{
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if (!isset(self::$_faves[$notice->id])) {
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self::fillFaves(array($notice->id));
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}
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return self::$_faves[$notice->id];
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}
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static public function fillFaves(array $notice_ids)
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{
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$faveMap = Fave::listGet('notice_id', $notice_ids);
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self::$_faves = array_replace(self::$_faves, $faveMap);
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}
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static public function blowCacheForProfileId($profile_id)
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{
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$cache = Cache::instance();
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if ($cache) {
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// Faves don't happen chronologically, so we need to blow
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// ;last cache, too
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$cache->delete(Cache::key('fave:ids_by_user:'.$profile_id));
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$cache->delete(Cache::key('fave:ids_by_user:'.$profile_id.';last'));
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$cache->delete(Cache::key('fave:ids_by_user_own:'.$profile_id));
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$cache->delete(Cache::key('fave:ids_by_user_own:'.$profile_id.';last'));
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$cache->delete(Cache::key('fave:count_by_profile:'.$profile_id));
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}
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}
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static public function blowCacheForNoticeId($notice_id)
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{
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$cache = Cache::instance();
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if ($cache) {
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$cache->delete(Cache::key('fave:list-ids:notice_id:'.$notice_id));
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}
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}
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// Remember that we want the _activity_ notice here, not faves applied
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// to the supplied Notice (as with byNotice)!
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static public function fromStored(Notice $stored)
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{
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$class = get_called_class();
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$object = new $class;
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$object->uri = $stored->uri;
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if (!$object->find(true)) {
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throw new NoResultException($object);
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}
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return $object;
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}
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/**
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* Retrieves the _targeted_ notice of a verb (such as the notice that was
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* _favorited_, but not the favorite activity itself).
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*
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* @param Notice $stored The activity notice.
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*
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* @throws NoResultException when it can't find what it's looking for.
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*/
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static public function getTargetFromStored(Notice $stored)
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{
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return self::fromStored($stored)->getTarget();
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}
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static public function getObjectType()
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{
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return ActivityObject::ACTIVITY;
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}
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public function asActivityObject(Profile $scoped=null)
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{
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$actobj = new ActivityObject();
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$actobj->id = $this->getUri();
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$actobj->type = ActivityUtils::resolveUri(self::getObjectType());
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$actobj->actor = $this->getActorObject();
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$actobj->target = $this->getTargetObject();
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$actobj->objects = array(clone($actobj->target));
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$actobj->verb = ActivityVerb::FAVORITE;
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$actobj->title = ActivityUtils::verbToTitle($actobj->verb);
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$actobj->content = $this->getTarget()->getRendered();
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return $actobj;
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}
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/**
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* @param ActivityObject $actobj The _favored_ notice (which we're "in-reply-to")
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* @param Notice $stored The _activity_ notice, i.e. the favor itself.
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*/
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static public function parseActivityObject(ActivityObject $actobj, Notice $stored)
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{
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// throws exception if nothing was found, but it could also be a non-Notice...
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// FIXME: This should only test _one_ URI (and not the links etc.) though a function like this could be useful in other cases
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$local = ActivityUtils::findLocalObject($actobj->getIdentifiers());
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if (!$local instanceof Notice) {
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// $local always returns something, but this was not what we expected. Something is wrong.
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throw new Exception('Something other than a Notice was returned from findLocalObject');
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}
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$actor = $stored->getProfile();
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$object = new Fave();
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$object->user_id = $stored->getProfile()->id;
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$object->notice_id = $local->id;
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$object->uri = $stored->uri;
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$object->created = $stored->created;
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$object->modified = $stored->modified;
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return $object;
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}
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static public function extendActivity(Notice $stored, Activity $act, Profile $scoped=null)
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{
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$target = self::getTargetFromStored($stored);
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// The following logic was copied from StatusNet's Activity plugin
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if (ActivityUtils::compareVerbs($target->verb, array(ActivityVerb::POST))) {
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// "I like the thing you posted"
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$act->objects = $target->asActivity()->objects;
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} else {
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// "I like that you did whatever you did"
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$act->target = $target->asActivityObject();
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$act->objects = array(clone($act->target));
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}
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$act->context->replyToID = $target->getUri();
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$act->context->replyToUrl = $target->getUrl();
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$act->title = ActivityUtils::verbToTitle($act->verb);
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}
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static function saveActivityObject(ActivityObject $actobj, Notice $stored)
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{
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$object = self::parseActivityObject($actobj, $stored);
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$object->insert(); // exception throwing in Fave's case!
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self::blowCacheForProfileId($object->user_id);
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self::blowCacheForNoticeId($object->notice_id);
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self::blow('popular');
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Event::handle('EndFavorNotice', array($stored->getProfile(), $object->getTarget()));
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return $object;
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}
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public function getTarget()
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{
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return Notice::getByID($this->notice_id);
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}
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public function getTargetObject()
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{
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return $this->getTarget()->asActivityObject();
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}
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protected $_stored = array();
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public function getStored()
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{
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if (!isset($this->_stored[$this->uri])) {
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$stored = new Notice();
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$stored->uri = $this->uri;
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if (!$stored->find(true)) {
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throw new NoResultException($stored);
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}
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$this->_stored[$this->uri] = $stored;
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}
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return $this->_stored[$this->uri];
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}
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public function getActor()
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{
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return Profile::getByID($this->user_id);
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}
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public function getActorObject()
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{
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return $this->getActor()->asActivityObject();
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}
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public function getUri()
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{
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if (!empty($this->uri)) {
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return $this->uri;
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}
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// We (should've in this case) created it ourselves, so we tag it ourselves
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return self::newUri($this->getActor(), $this->getTarget(), $this->created);
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}
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}
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