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-rw-r--r--classes/Subscription.php160
1 files changed, 160 insertions, 0 deletions
diff --git a/classes/Subscription.php b/classes/Subscription.php
index e9ad2a5a2..1d4f37929 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 */
@@ -91,6 +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();
@@ -220,6 +225,9 @@ 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();
@@ -245,6 +253,8 @@ class Subscription extends Memcached_DataObject
$act->verb = ActivityVerb::FOLLOW;
+ // XXX: rationalize this with the URL
+
$act->id = TagURI::mint('follow:%d:%d:%s',
$subscriber->id,
$subscribed->id,
@@ -262,6 +272,156 @@ class Subscription extends Memcached_DataObject
$act->actor = ActivityObject::fromProfile($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;
+ }
}