X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=classes%2FSubscription.php;h=1d4f37929b900bd740d173939516401bd693988b;hb=061c8d959ba8351b145a27690d5a4caa477915ca;hp=0679c0925004bbdbb9410e3624fef8ff899a8774;hpb=cfeb1bfa419e886a1b60dfcbd4260d2f5de0515b;p=quix0rs-gnu-social.git diff --git a/classes/Subscription.php b/classes/Subscription.php index 0679c09250..1d4f37929b 100644 --- a/classes/Subscription.php +++ b/classes/Subscription.php @@ -26,6 +26,8 @@ require_once INSTALLDIR.'/classes/Memcached_DataObject.php'; class Subscription extends Memcached_DataObject { + const CACHE_WINDOW = 201; + ###START_AUTOCODE /* the code below is auto generated do not remove the above tag */ @@ -71,14 +73,17 @@ class Subscription extends Memcached_DataObject } if (!$subscriber->hasRight(Right::SUBSCRIBE)) { + // TRANS: Exception thrown when trying to subscribe while being banned from subscribing. throw new Exception(_('You have been banned from subscribing.')); } if (self::exists($subscriber, $other)) { + // TRANS: Exception thrown when trying to subscribe while already subscribed. throw new Exception(_('Already subscribed!')); } if ($other->hasBlocked($subscriber)) { + // TRANS: Exception thrown when trying to subscribe to a user who has blocked the subscribing user. throw new Exception(_('User has blocked you.')); } @@ -88,6 +93,9 @@ class Subscription extends Memcached_DataObject self::blow('user:notices_with_friends:%d', $subscriber->id); + self::blow('subscription:by-subscriber:'.$subscriber->id); + self::blow('subscription:by-subscribed:'.$other->id); + $subscriber->blowSubscriptionCount(); $other->blowSubscriberCount(); @@ -129,6 +137,7 @@ class Subscription extends Memcached_DataObject if (!$result) { common_log_db_error($sub, 'INSERT', __FILE__); + // TRANS: Exception thrown when a subscription could not be stored on the server. throw new Exception(_('Could not save subscription.')); } @@ -160,17 +169,18 @@ class Subscription extends Memcached_DataObject * Cancel a subscription * */ - function cancel($subscriber, $other) { if (!self::exists($subscriber, $other)) { + // TRANS: Exception thrown when trying to unsibscribe without a subscription. throw new Exception(_('Not subscribed!')); } // Don't allow deleting self subs if ($subscriber->id == $other->id) { - throw new Exception(_('Couldn\'t delete self-subscription.')); + // TRANS: Exception thrown when trying to unsubscribe a user from themselves. + throw new Exception(_('Could not delete self-subscription.')); } if (Event::handle('StartUnsubscribe', array($subscriber, $other))) { @@ -197,7 +207,8 @@ class Subscription extends Memcached_DataObject if (!$result) { common_log_db_error($token, 'DELETE', __FILE__); - throw new Exception(_('Couldn\'t delete subscription OMB token.')); + // TRANS: Exception thrown when the OMB token for a subscription could not deleted on the server. + throw new Exception(_('Could not delete subscription OMB token.')); } } else { common_log(LOG_ERR, "Couldn't find credentials with token {$token->tok}"); @@ -208,11 +219,15 @@ class Subscription extends Memcached_DataObject if (!$result) { common_log_db_error($sub, 'DELETE', __FILE__); - throw new Exception(_('Couldn\'t delete subscription.')); + // TRANS: Exception thrown when a subscription could not be deleted on the server. + throw new Exception(_('Could not delete subscription.')); } self::blow('user:notices_with_friends:%d', $subscriber->id); + self::blow('subscription:by-subscriber:'.$subscriber->id); + self::blow('subscription:by-subscribed:'.$other->id); + $subscriber->blowSubscriptionCount(); $other->blowSubscriberCount(); @@ -228,4 +243,185 @@ class Subscription extends Memcached_DataObject 'subscribed' => $other->id)); return (empty($sub)) ? false : true; } + + function asActivity() + { + $subscriber = Profile::staticGet('id', $this->subscriber); + $subscribed = Profile::staticGet('id', $this->subscribed); + + $act = new Activity(); + + $act->verb = ActivityVerb::FOLLOW; + + // XXX: rationalize this with the URL + + $act->id = TagURI::mint('follow:%d:%d:%s', + $subscriber->id, + $subscribed->id, + common_date_iso8601($this->created)); + + $act->time = strtotime($this->created); + // TRANS: Activity tile when subscribing to another person. + $act->title = _("Follow"); + // TRANS: Notification given when one person starts following another. + // TRANS: %1$s is the subscriber, %2$s is the subscribed. + $act->content = sprintf(_('%1$s is now following %2$s.'), + $subscriber->getBestName(), + $subscribed->getBestName()); + + $act->actor = ActivityObject::fromProfile($subscriber); + $act->objects[] = ActivityObject::fromProfile($subscribed); + + $url = common_local_url('AtomPubShowSubscription', + array('subscriber' => $subscriber->id, + 'subscribed' => $subscribed->id)); + + $act->selfLink = $url; + $act->editLink = $url; + + return $act; + } + + /** + * Stream of subscriptions with the same subscriber + * + * Useful for showing pages that list subscriptions in reverse + * chronological order. Has offset & limit to make paging + * easy. + * + * @param integer $subscriberId Profile ID of the subscriber + * @param integer $offset Offset from latest + * @param integer $limit Maximum number to fetch + * + * @return Subscription stream of subscriptions; use fetch() to iterate + */ + + static function bySubscriber($subscriberId, + $offset = 0, + $limit = PROFILES_PER_PAGE) + { + if ($offset + $limit > self::CACHE_WINDOW) { + return new ArrayWrapper(self::realBySubscriber($subscriberId, + $offset, + $limit)); + } else { + $key = 'subscription:by-subscriber:'.$subscriberId; + $window = self::cacheGet($key); + if ($window === false) { + $window = self::realBySubscriber($subscriberId, + 0, + self::CACHE_WINDOW); + self::cacheSet($key, $window); + } + return new ArrayWrapper(array_slice($window, + $offset, + $limit)); + } + } + + private static function realBySubscriber($subscriberId, + $offset, + $limit) + { + $sub = new Subscription(); + + $sub->subscriber = $subscriberId; + + $sub->whereAdd('subscribed != ' . $subscriberId); + + $sub->orderBy('created DESC'); + $sub->limit($offset, $limit); + + $sub->find(); + + $subs = array(); + + while ($sub->fetch()) { + $subs[] = clone($sub); + } + + return $subs; + } + + /** + * Stream of subscriptions with the same subscribed profile + * + * Useful for showing pages that list subscribers in reverse + * chronological order. Has offset & limit to make paging + * easy. + * + * @param integer $subscribedId Profile ID of the subscribed + * @param integer $offset Offset from latest + * @param integer $limit Maximum number to fetch + * + * @return Subscription stream of subscriptions; use fetch() to iterate + */ + + static function bySubscribed($subscribedId, + $offset = 0, + $limit = PROFILES_PER_PAGE) + { + if ($offset + $limit > self::CACHE_WINDOW) { + return new ArrayWrapper(self::realBySubscribed($subscribedId, + $offset, + $limit)); + } else { + $key = 'subscription:by-subscribed:'.$subscribedId; + $window = self::cacheGet($key); + if ($window === false) { + $window = self::realBySubscribed($subscribedId, + 0, + self::CACHE_WINDOW); + self::cacheSet($key, $window); + } + return new ArrayWrapper(array_slice($window, + $offset, + $limit)); + } + } + + private static function realBySubscribed($subscribedId, + $offset, + $limit) + { + $sub = new Subscription(); + + $sub->subscribed = $subscribedId; + + $sub->whereAdd('subscriber != ' . $subscribedId); + + $sub->orderBy('created DESC'); + $sub->limit($offset, $limit); + + $sub->find(); + + $subs = array(); + + while ($sub->fetch()) { + $subs[] = clone($sub); + } + + return $subs; + } + + /** + * Flush cached subscriptions when subscription is updated + * + * Because we cache subscriptions, it's useful to flush them + * here. + * + * @param mixed $orig Original version of object + * + * @return boolean success flag. + */ + + function update($orig=null) + { + $result = parent::update($orig); + + self::blow('subscription:by-subscriber:'.$this->subscriber); + self::blow('subscription:by-subscribed:'.$this->subscribed); + + return $result; + } }