* Cancel a subscription
*
*/
- function cancel(Profile $subscriber, Profile $other)
+ static function cancel(Profile $subscriber, Profile $other)
{
if (!self::exists($subscriber, $other)) {
// TRANS: Exception thrown when trying to unsibscribe without a subscription.
return;
}
- function exists($subscriber, $other)
+ static function exists(Profile $subscriber, Profile $other)
{
$sub = Subscription::pkeyGet(array('subscriber' => $subscriber->id,
'subscribed' => $other->id));
* chronological order. Has offset & limit to make paging
* easy.
*
- * @param integer $subscriberId Profile ID of the subscriber
+ * @param integer $profile_id ID of the subscriber profile
* @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,
- $limit = PROFILES_PER_PAGE)
+ public static function bySubscriber($profile_id, $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;
+ // "by subscriber" means it is the list of subscribed users we want
+ $ids = self::getSubscribedIDs($profile_id, $offset, $limit);
+ return Subscription::listFind('subscribed', $ids);
}
/**
- * Stream of subscriptions with the same subscribed profile
+ * Stream of subscriptions with the same subscriber
*
- * Useful for showing pages that list subscribers in reverse
+ * Useful for showing pages that list subscriptions in reverse
* chronological order. Has offset & limit to make paging
* easy.
*
- * @param integer $subscribedId Profile ID of the subscribed
+ * @param integer $profile_id ID of the subscribed profile
* @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,
- $limit = PROFILES_PER_PAGE)
+ public static function bySubscribed($profile_id, $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));
- }
+ // "by subscribed" means it is the list of subscribers we want
+ $ids = self::getSubscriberIDs($profile_id, $offset, $limit);
+ return Subscription::listFind('subscriber', $ids);
+ }
+
+
+ // The following are helper functions to the subscription lists,
+ // notably the public ones get used in places such as Profile
+ public static function getSubscribedIDs($profile_id, $offset, $limit) {
+ return self::getSubscriptionIDs('subscribed', $profile_id, $offset, $limit);
+ }
+
+ public static function getSubscriberIDs($profile_id, $offset, $limit) {
+ return self::getSubscriptionIDs('subscriber', $profile_id, $offset, $limit);
}
- private static function realBySubscribed($subscribedId,
- $offset,
- $limit)
+ private static function getSubscriptionIDs($get_type, $profile_id, $offset, $limit)
{
- $sub = new Subscription();
+ switch ($get_type) {
+ case 'subscribed':
+ $by_type = 'subscriber';
+ break;
+ case 'subscriber':
+ $by_type = 'subscribed';
+ break;
+ default:
+ throw new Exception('Bad type argument to getSubscriptionIDs');
+ }
+
+ $cacheKey = 'subscription:by-'.$by_type.':'.$profile_id;
- $sub->subscribed = $subscribedId;
+ $queryoffset = $offset;
+ $querylimit = $limit;
- $sub->whereAdd('subscriber != ' . $subscribedId);
+ if ($offset + $limit <= self::CACHE_WINDOW) {
+ // Oh, it seems it should be cached
+ $ids = self::cacheGet($cacheKey);
+ if (is_array($ids)) {
+ return array_slice($ids, $offset, $limit);
+ }
+ // Being here indicates we didn't find anything cached
+ // so we'll have to fill it up simultaneously
+ $queryoffset = 0;
+ $querylimit = self::CACHE_WINDOW;
+ }
+ $sub = new Subscription();
+ $sub->$by_type = $profile_id;
+ $sub->selectAdd($get_type);
+ $sub->whereAdd("{$get_type} != {$profile_id}");
$sub->orderBy('created DESC');
- $sub->limit($offset, $limit);
+ $sub->limit($queryoffset, $querylimit);
- $sub->find();
+ if (!$sub->find()) {
+ return array();
+ }
- $subs = array();
+ $ids = $sub->fetchAll($get_type);
- while ($sub->fetch()) {
- $subs[] = clone($sub);
+ // If we're simultaneously filling up cache, remember to slice
+ if ($offset === 0 && $querylimit === self::CACHE_WINDOW) {
+ self::cacheSet($cacheKey, $ids);
+ return array_slice($ids, $offset, $limit);
}
- return $subs;
+ return $ids;
}
/**
projects / quix0rs-gnu-social.git / blobdiff