]> git.mxchange.org Git - quix0rs-gnu-social.git/blobdiff - classes/Subscription.php
Merge branch 'master' into social-master
[quix0rs-gnu-social.git] / classes / Subscription.php
index f40239989c7cd7674b7d4a954325dc546d65f700..4d7eb524dcf8d89da61e4ba15d9a2bac39d7b7cc 100644 (file)
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
+if (!defined('GNUSOCIAL')) { exit(1); }
 
 /**
  * Table Definition for subscription
  */
-require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
-
 class Subscription extends Managed_DataObject
 {
     const CACHE_WINDOW = 201;
     const FORCE = true;
 
-    ###START_AUTOCODE
-    /* the code below is auto generated do not remove the above tag */
-
     public $__table = 'subscription';                    // table name
     public $subscriber;                      // int(4)  primary_key not_null
     public $subscribed;                      // int(4)  primary_key not_null
@@ -67,18 +62,6 @@ class Subscription extends Managed_DataObject
                 'subscription_token_idx' => array('token'),
             ),
         );
-    }    
-
-    /* Static get */
-    function staticGet($k,$v=null)
-    { return Memcached_DataObject::staticGet('Subscription',$k,$v); }
-
-    /* the code above is auto generated do not remove the tag below */
-    ###END_AUTOCODE
-
-    function pkeyGet($kv)
-    {
-        return Memcached_DataObject::pkeyGet('Subscription', $kv);
     }
 
     /**
@@ -91,16 +74,8 @@ class Subscription extends Managed_DataObject
      * @return mixed Subscription or Subscription_queue: new subscription info
      */
 
-    static function start($subscriber, $other, $force=false)
+    static function start(Profile $subscriber, Profile $other, $force=false)
     {
-        // @fixme should we enforce this as profiles in callers instead?
-        if ($subscriber instanceof User) {
-            $subscriber = $subscriber->getProfile();
-        }
-        if ($other instanceof User) {
-            $other = $other->getProfile();
-        }
-
         if (!$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.'));
@@ -108,7 +83,7 @@ class Subscription extends Managed_DataObject
 
         if (self::exists($subscriber, $other)) {
             // TRANS: Exception thrown when trying to subscribe while already subscribed.
-            throw new Exception(_('Already subscribed!'));
+            throw new AlreadyFulfilledException(_('Already subscribed!'));
         }
 
         if ($other->hasBlocked($subscriber)) {
@@ -117,8 +92,8 @@ class Subscription extends Managed_DataObject
         }
 
         if (Event::handle('StartSubscribe', array($subscriber, $other))) {
-            $otherUser = User::staticGet('id', $other->id);
-            if ($otherUser && $otherUser->subscribe_policy == User::SUBSCRIBE_POLICY_MODERATE && !$force) {
+            $otherUser = User::getKV('id', $other->id);
+            if ($otherUser instanceof User && $otherUser->subscribe_policy == User::SUBSCRIBE_POLICY_MODERATE && !$force) {
                 $sub = Subscription_queue::saveNew($subscriber, $other);
                 $sub->notify();
             } else {
@@ -133,20 +108,25 @@ class Subscription extends Managed_DataObject
                 $subscriber->blowSubscriptionCount();
                 $other->blowSubscriberCount();
 
-                if (!empty($otherUser) &&
+                if ($otherUser instanceof User &&
                     $otherUser->autosubscribe &&
                     !self::exists($other, $subscriber) &&
                     !$subscriber->hasBlocked($other)) {
 
                     try {
                         self::start($other, $subscriber);
+                    } catch (AlreadyFulfilledException $e) {
+                        // This shouldn't happen due to !self::exists above
+                        common_debug('Tried to autosubscribe a user to its new subscriber.');
                     } catch (Exception $e) {
                         common_log(LOG_ERR, "Exception during autosubscribe of {$other->nickname} to profile {$subscriber->id}: {$e->getMessage()}");
                     }
                 }
             }
 
-            Event::handle('EndSubscribe', array($subscriber, $other));
+            if ($sub instanceof Subscription) { // i.e. not SubscriptionQueue
+                Event::handle('EndSubscribe', array($subscriber, $other));
+            }
         }
 
         return $sub;
@@ -171,7 +151,7 @@ class Subscription extends Managed_DataObject
 
         $result = $sub->insert();
 
-        if (!$result) {
+        if ($result===false) {
             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.'));
@@ -191,11 +171,11 @@ class Subscription extends Managed_DataObject
 
     function notifyEmail()
     {
-        $subscribedUser = User::staticGet('id', $this->subscribed);
+        $subscribedUser = User::getKV('id', $this->subscribed);
 
-        if (!empty($subscribedUser)) {
+        if ($subscribedUser instanceof User) {
 
-            $subscriber = Profile::staticGet('id', $this->subscriber);
+            $subscriber = Profile::getKV('id', $this->subscriber);
 
             mail_subscribe_notify_profile($subscribedUser, $subscriber);
         }
@@ -205,11 +185,11 @@ class Subscription extends Managed_DataObject
      * Cancel a subscription
      *
      */
-    function cancel($subscriber, $other)
+    static function cancel(Profile $subscriber, Profile $other)
     {
         if (!self::exists($subscriber, $other)) {
             // TRANS: Exception thrown when trying to unsibscribe without a subscription.
-            throw new Exception(_('Not subscribed!'));
+            throw new AlreadyFulfilledException(_('Not subscribed!'));
         }
 
         // Don't allow deleting self subs
@@ -250,17 +230,25 @@ class Subscription extends Managed_DataObject
         return;
     }
 
-    function exists($subscriber, $other)
+    static function exists(Profile $subscriber, Profile $other)
     {
         $sub = Subscription::pkeyGet(array('subscriber' => $subscriber->id,
                                            'subscribed' => $other->id));
-        return (empty($sub)) ? false : true;
+        return ($sub instanceof Subscription);
     }
 
     function asActivity()
     {
-        $subscriber = Profile::staticGet('id', $this->subscriber);
-        $subscribed = Profile::staticGet('id', $this->subscribed);
+        $subscriber = Profile::getKV('id', $this->subscriber);
+        $subscribed = Profile::getKV('id', $this->subscribed);
+
+        if (!$subscriber instanceof Profile) {
+            throw new NoProfileException($this->subscriber);
+        }
+
+        if (!$subscribed instanceof Profile) {
+            throw new NoProfileException($this->subscribed);
+        }
 
         $act = new Activity();
 
@@ -279,8 +267,8 @@ class Subscription extends Managed_DataObject
                                $subscriber->getBestName(),
                                $subscribed->getBestName());
 
-        $act->actor     = ActivityObject::fromProfile($subscriber);
-        $act->objects[] = ActivityObject::fromProfile($subscribed);
+        $act->actor     = $subscriber->asActivityObject();
+        $act->objects[] = $subscribed->asActivityObject();
 
         $url = common_local_url('AtomPubShowSubscription',
                                 array('subscriber' => $subscriber->id,
@@ -299,117 +287,100 @@ class Subscription extends Managed_DataObject
      * 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,
-                                 $limit = PROFILES_PER_PAGE)
-    {
-        if ($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,
-                                             $limit)
+    public static function bySubscriber($profile_id, $offset = 0, $limit = PROFILES_PER_PAGE)
     {
-        $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');
+        }
 
-        $sub->subscribed = $subscribedId;
+        $cacheKey = 'subscription:by-'.$by_type.':'.$profile_id;
 
-        $sub->whereAdd('subscriber != ' . $subscribedId);
+        $queryoffset = $offset;
+        $querylimit = $limit;
 
+        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 ($queryoffset === 0 && $querylimit === self::CACHE_WINDOW) {
+            self::cacheSet($cacheKey, $ids);
+            return array_slice($ids, $offset, $limit);
         }
 
-        return $subs;
+        return $ids;
     }
 
     /**
@@ -418,18 +389,16 @@ class Subscription extends Managed_DataObject
      * Because we cache subscriptions, it's useful to flush them
      * here.
      *
-     * @param mixed $orig Original version of object
+     * @param mixed $dataObject Original version of object
      *
      * @return boolean success flag.
      */
-    function update($orig=null)
+    function update($dataObject=false)
     {
-        $result = parent::update($orig);
-
         self::blow('subscription:by-subscriber:'.$this->subscriber);
         self::blow('subscription:by-subscribed:'.$this->subscribed);
 
-        return $result;
+        return parent::update($dataObject);
     }
 
     function getURI()