Commit d0ea1388 authored by Evan Prodromou's avatar Evan Prodromou

cache stream of subscriptions

parent 7285bbc9
......@@ -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();
$other->blowSubscriberCount();
......@@ -282,6 +290,29 @@ class Subscription extends Memcached_DataObject
static function bySubscriber($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();
......@@ -294,7 +325,13 @@ class Subscription extends Memcached_DataObject
$sub->find();
return $sub;
$subs = array();
while ($sub->fetch()) {
$subs[] = clone($sub);
}
return $subs;
}
/**
......@@ -314,6 +351,29 @@ class Subscription extends Memcached_DataObject
static function bySubscribed($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();
......@@ -326,6 +386,33 @@ class Subscription extends Memcached_DataObject
$sub->find();
return $sub;
$subs = array();
while ($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;
}
}
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