diff --git a/src/applications/calendar/controller/PhabricatorCalendarEventViewController.php b/src/applications/calendar/controller/PhabricatorCalendarEventViewController.php
index c6bb1a5ae8..07f2762f63 100644
--- a/src/applications/calendar/controller/PhabricatorCalendarEventViewController.php
+++ b/src/applications/calendar/controller/PhabricatorCalendarEventViewController.php
@@ -1,297 +1,302 @@
 <?php
 
 final class PhabricatorCalendarEventViewController
   extends PhabricatorCalendarController {
 
   private $id;
 
   public function shouldAllowPublic() {
     return true;
   }
 
   public function willProcessRequest(array $data) {
     $this->id = $data['id'];
   }
 
   public function processRequest() {
     $request = $this->getRequest();
     $viewer = $request->getUser();
 
     $sequence = $request->getURIData('sequence');
 
     $event = id(new PhabricatorCalendarEventQuery())
       ->setViewer($viewer)
       ->withIDs(array($this->id))
       ->executeOne();
     if (!$event) {
       return new Aphront404Response();
     }
 
     if ($sequence && $event->getIsRecurring()) {
       $event = $event->generateNthGhost($sequence, $viewer);
     } else if ($sequence) {
       return new Aphront404Response();
     }
 
     $title = 'E'.$event->getID();
     $page_title = $title.' '.$event->getName();
     $crumbs = $this->buildApplicationCrumbs();
     $crumbs->addTextCrumb($title, '/E'.$event->getID());
 
     $timeline = $this->buildTransactionTimeline(
       $event,
       new PhabricatorCalendarEventTransactionQuery());
 
     $header = $this->buildHeaderView($event);
     $actions = $this->buildActionView($event);
     $properties = $this->buildPropertyView($event);
 
     $properties->setActionList($actions);
     $box = id(new PHUIObjectBoxView())
       ->setHeader($header)
       ->addPropertyList($properties);
 
     $is_serious = PhabricatorEnv::getEnvConfig('phabricator.serious-business');
     $add_comment_header = $is_serious
       ? pht('Add Comment')
       : pht('Add To Plate');
     $draft = PhabricatorDraft::newFromUserAndKey($viewer, $event->getPHID());
     $add_comment_form = id(new PhabricatorApplicationTransactionCommentView())
       ->setUser($viewer)
       ->setObjectPHID($event->getPHID())
       ->setDraft($draft)
       ->setHeaderText($add_comment_header)
       ->setAction(
         $this->getApplicationURI('/event/comment/'.$event->getID().'/'))
       ->setSubmitButtonName(pht('Add Comment'));
 
     return $this->buildApplicationPage(
       array(
         $crumbs,
         $box,
         $timeline,
         $add_comment_form,
       ),
       array(
         'title' => $page_title,
       ));
   }
 
   private function buildHeaderView(PhabricatorCalendarEvent $event) {
     $viewer = $this->getRequest()->getUser();
     $id = $event->getID();
 
     $is_cancelled = $event->getIsCancelled();
     $icon = $is_cancelled ? ('fa-times') : ('fa-calendar');
     $color = $is_cancelled ? ('grey') : ('green');
     $status = $is_cancelled ? pht('Cancelled') : pht('Active');
 
     $invite_status = $event->getUserInviteStatus($viewer->getPHID());
     $status_invited = PhabricatorCalendarEventInvitee::STATUS_INVITED;
     $is_invite_pending = ($invite_status == $status_invited);
 
     $header = id(new PHUIHeaderView())
       ->setUser($viewer)
       ->setHeader($event->getName())
       ->setStatus($icon, $color, $status)
       ->setPolicyObject($event);
 
     if ($is_invite_pending) {
       $decline_button = id(new PHUIButtonView())
         ->setTag('a')
         ->setIcon(id(new PHUIIconView())
           ->setIconFont('fa-times grey'))
         ->setHref($this->getApplicationURI("/event/decline/{$id}/"))
         ->setWorkflow(true)
         ->setText(pht('Decline'));
 
       $accept_button = id(new PHUIButtonView())
         ->setTag('a')
         ->setIcon(id(new PHUIIconView())
           ->setIconFont('fa-check green'))
         ->setHref($this->getApplicationURI("/event/accept/{$id}/"))
         ->setWorkflow(true)
         ->setText(pht('Accept'));
 
       $header->addActionLink($decline_button)
         ->addActionLink($accept_button);
     }
     return $header;
   }
 
   private function buildActionView(PhabricatorCalendarEvent $event) {
     $viewer = $this->getRequest()->getUser();
     $id = $event->getID();
     $is_cancelled = $event->getIsCancelled();
     $is_attending = $event->getIsUserAttending($viewer->getPHID());
 
     $actions = id(new PhabricatorActionListView())
       ->setObjectURI($this->getApplicationURI('event/'.$id.'/'))
       ->setUser($viewer)
       ->setObject($event);
 
     $can_edit = PhabricatorPolicyFilter::hasCapability(
       $viewer,
       $event,
       PhabricatorPolicyCapability::CAN_EDIT);
 
     if (!$event->getIsGhostEvent()) {
       $actions->addAction(
         id(new PhabricatorActionView())
           ->setName(pht('Edit Event'))
           ->setIcon('fa-pencil')
           ->setHref($this->getApplicationURI("event/edit/{$id}/"))
           ->setDisabled(!$can_edit)
           ->setWorkflow(!$can_edit));
     }
 
     if ($is_attending) {
       $actions->addAction(
         id(new PhabricatorActionView())
           ->setName(pht('Decline Event'))
           ->setIcon('fa-user-times')
           ->setHref($this->getApplicationURI("event/join/{$id}/"))
           ->setWorkflow(true));
     } else {
       $actions->addAction(
         id(new PhabricatorActionView())
           ->setName(pht('Join Event'))
           ->setIcon('fa-user-plus')
           ->setHref($this->getApplicationURI("event/join/{$id}/"))
           ->setWorkflow(true));
     }
 
     if ($is_cancelled) {
       $actions->addAction(
         id(new PhabricatorActionView())
           ->setName(pht('Reinstate Event'))
           ->setIcon('fa-plus')
           ->setHref($this->getApplicationURI("event/cancel/{$id}/"))
           ->setDisabled(!$can_edit)
           ->setWorkflow(true));
     } else {
       $actions->addAction(
         id(new PhabricatorActionView())
           ->setName(pht('Cancel Event'))
           ->setIcon('fa-times')
           ->setHref($this->getApplicationURI("event/cancel/{$id}/"))
           ->setDisabled(!$can_edit)
           ->setWorkflow(true));
     }
 
     return $actions;
   }
 
   private function buildPropertyView(PhabricatorCalendarEvent $event) {
     $viewer = $this->getRequest()->getUser();
 
     $properties = id(new PHUIPropertyListView())
       ->setUser($viewer)
       ->setObject($event);
 
     if ($event->getIsAllDay()) {
       $date_start = phabricator_date($event->getDateFrom(), $viewer);
       $date_end = phabricator_date($event->getDateTo(), $viewer);
 
       if ($date_start == $date_end) {
         $properties->addProperty(
           pht('Time'),
           phabricator_date($event->getDateFrom(), $viewer));
       } else {
         $properties->addProperty(
           pht('Starts'),
           phabricator_date($event->getDateFrom(), $viewer));
         $properties->addProperty(
           pht('Ends'),
           phabricator_date($event->getDateTo(), $viewer));
       }
     } else {
       $properties->addProperty(
         pht('Starts'),
         phabricator_datetime($event->getDateFrom(), $viewer));
 
       $properties->addProperty(
         pht('Ends'),
         phabricator_datetime($event->getDateTo(), $viewer));
     }
 
     if ($event->getIsRecurring()) {
       $properties->addProperty(
         pht('Recurs'),
-        idx($event->getRecurrenceFrequency(), 'rule'));
+        ucwords(idx($event->getRecurrenceFrequency(), 'rule')));
+      if ($event->getIsGhostEvent()) {
+        $properties->addProperty(
+          pht('Recurrence of Event'),
+          $viewer->renderHandle($event->getInstanceOfEventPHID()));
+      }
     }
 
     $properties->addProperty(
       pht('Host'),
       $viewer->renderHandle($event->getUserPHID()));
 
     $invitees = $event->getInvitees();
     foreach ($invitees as $key => $invitee) {
       if ($invitee->isUninvited()) {
         unset($invitees[$key]);
       }
     }
 
     if ($invitees) {
       $invitee_list = new PHUIStatusListView();
 
       $icon_invited = PHUIStatusItemView::ICON_OPEN;
       $icon_attending = PHUIStatusItemView::ICON_ACCEPT;
       $icon_declined = PHUIStatusItemView::ICON_REJECT;
 
       $status_invited = PhabricatorCalendarEventInvitee::STATUS_INVITED;
       $status_attending = PhabricatorCalendarEventInvitee::STATUS_ATTENDING;
       $status_declined = PhabricatorCalendarEventInvitee::STATUS_DECLINED;
 
       $icon_map = array(
         $status_invited => $icon_invited,
         $status_attending => $icon_attending,
         $status_declined => $icon_declined,
       );
 
       $icon_color_map = array(
         $status_invited => null,
         $status_attending => 'green',
         $status_declined => 'red',
       );
 
       foreach ($invitees as $invitee) {
         $item = new PHUIStatusItemView();
         $invitee_phid = $invitee->getInviteePHID();
         $status = $invitee->getStatus();
         $target = $viewer->renderHandle($invitee_phid);
         $icon = $icon_map[$status];
         $icon_color = $icon_color_map[$status];
 
         $item->setIcon($icon, $icon_color)
           ->setTarget($target);
         $invitee_list->addItem($item);
       }
     } else {
       $invitee_list = phutil_tag(
         'em',
         array(),
         pht('None'));
     }
 
     $properties->addProperty(
       pht('Invitees'),
       $invitee_list);
 
     $properties->invokeWillRenderEvent();
 
     $icon_display = PhabricatorCalendarIcon::renderIconForChooser(
       $event->getIcon());
     $properties->addProperty(
       pht('Icon'),
       $icon_display);
 
     $properties->addSectionHeader(
       pht('Description'),
       PHUIPropertyListView::ICON_SUMMARY);
     $properties->addTextContent($event->getDescription());
 
     return $properties;
   }
 
 }
diff --git a/src/applications/calendar/storage/PhabricatorCalendarEvent.php b/src/applications/calendar/storage/PhabricatorCalendarEvent.php
index 5110974306..3207e9897f 100644
--- a/src/applications/calendar/storage/PhabricatorCalendarEvent.php
+++ b/src/applications/calendar/storage/PhabricatorCalendarEvent.php
@@ -1,476 +1,476 @@
 <?php
 
 final class PhabricatorCalendarEvent extends PhabricatorCalendarDAO
   implements PhabricatorPolicyInterface,
   PhabricatorMarkupInterface,
   PhabricatorApplicationTransactionInterface,
   PhabricatorSubscribableInterface,
   PhabricatorTokenReceiverInterface,
   PhabricatorDestructibleInterface,
   PhabricatorMentionableInterface,
   PhabricatorFlaggableInterface {
 
   protected $name;
   protected $userPHID;
   protected $dateFrom;
   protected $dateTo;
   protected $description;
   protected $isCancelled;
   protected $isAllDay;
   protected $icon;
   protected $mailKey;
 
   protected $isRecurring = 0;
   protected $recurrenceFrequency = array();
   protected $recurrenceEndDate;
 
   private $isGhostEvent = false;
   protected $instanceOfEventPHID;
   protected $sequenceIndex;
 
   protected $viewPolicy;
   protected $editPolicy;
 
   const DEFAULT_ICON = 'fa-calendar';
 
   private $invitees = self::ATTACHABLE;
   private $appliedViewer;
 
   public static function initializeNewCalendarEvent(
     PhabricatorUser $actor,
     $mode) {
     $app = id(new PhabricatorApplicationQuery())
       ->setViewer($actor)
       ->withClasses(array('PhabricatorCalendarApplication'))
       ->executeOne();
 
     $view_policy = null;
     $is_recurring = 0;
 
     if ($mode == 'public') {
       $view_policy = PhabricatorPolicies::getMostOpenPolicy();
     } else if ($mode == 'recurring') {
       $is_recurring = true;
     } else {
       $view_policy = $actor->getPHID();
     }
 
     return id(new PhabricatorCalendarEvent())
       ->setUserPHID($actor->getPHID())
       ->setIsCancelled(0)
       ->setIsAllDay(0)
       ->setIsRecurring($is_recurring)
       ->setIcon(self::DEFAULT_ICON)
       ->setViewPolicy($view_policy)
       ->setEditPolicy($actor->getPHID())
       ->attachInvitees(array())
       ->applyViewerTimezone($actor);
   }
 
   public function applyViewerTimezone(PhabricatorUser $viewer) {
     if ($this->appliedViewer) {
       throw new Exception(pht('Viewer timezone is already applied!'));
     }
 
     $this->appliedViewer = $viewer;
 
     if (!$this->getIsAllDay()) {
       return $this;
     }
 
     $zone = $viewer->getTimeZone();
 
 
     $this->setDateFrom(
       $this->getDateEpochForTimeZone(
         $this->getDateFrom(),
         new DateTimeZone('Pacific/Kiritimati'),
         'Y-m-d',
         null,
         $zone));
 
     $this->setDateTo(
       $this->getDateEpochForTimeZone(
         $this->getDateTo(),
         new DateTimeZone('Pacific/Midway'),
         'Y-m-d 23:59:00',
         '-1 day',
         $zone));
 
     return $this;
   }
 
 
   public function removeViewerTimezone(PhabricatorUser $viewer) {
     if (!$this->appliedViewer) {
       throw new Exception(pht('Viewer timezone is not applied!'));
     }
 
     if ($viewer->getPHID() != $this->appliedViewer->getPHID()) {
       throw new Exception(pht('Removed viewer must match applied viewer!'));
     }
 
     $this->appliedViewer = null;
 
     if (!$this->getIsAllDay()) {
       return $this;
     }
 
     $zone = $viewer->getTimeZone();
 
     $this->setDateFrom(
       $this->getDateEpochForTimeZone(
         $this->getDateFrom(),
         $zone,
         'Y-m-d',
         null,
         new DateTimeZone('Pacific/Kiritimati')));
 
     $this->setDateTo(
       $this->getDateEpochForTimeZone(
         $this->getDateTo(),
         $zone,
         'Y-m-d',
         '+1 day',
         new DateTimeZone('Pacific/Midway')));
 
     return $this;
   }
 
   private function getDateEpochForTimeZone(
     $epoch,
     $src_zone,
     $format,
     $adjust,
     $dst_zone) {
 
     $src = new DateTime('@'.$epoch);
     $src->setTimeZone($src_zone);
 
     if (strlen($adjust)) {
       $adjust = ' '.$adjust;
     }
 
     $dst = new DateTime($src->format($format).$adjust, $dst_zone);
     return $dst->format('U');
   }
 
   public function save() {
     if ($this->appliedViewer) {
       throw new Exception(
         pht(
           'Can not save event with viewer timezone still applied!'));
     }
 
     if (!$this->mailKey) {
       $this->mailKey = Filesystem::readRandomCharacters(20);
     }
 
     return parent::save();
   }
 
   /**
    * Get the event start epoch for evaluating invitee availability.
    *
    * When assessing availability, we pretend events start earlier than they
    * really. This allows us to mark users away for the entire duration of a
    * series of back-to-back meetings, even if they don't strictly overlap.
    *
    * @return int Event start date for availability caches.
    */
   public function getDateFromForCache() {
     return ($this->getDateFrom() - phutil_units('15 minutes in seconds'));
   }
 
   protected function getConfiguration() {
     return array(
       self::CONFIG_AUX_PHID => true,
       self::CONFIG_COLUMN_SCHEMA => array(
         'name' => 'text',
         'dateFrom' => 'epoch',
         'dateTo' => 'epoch',
         'description' => 'text',
         'isCancelled' => 'bool',
         'isAllDay' => 'bool',
         'icon' => 'text32',
         'mailKey' => 'bytes20',
         'isRecurring' => 'bool',
         'recurrenceEndDate' => 'epoch?',
         'instanceOfEventPHID' => 'phid?',
         'sequenceIndex' => 'uint32?',
       ),
       self::CONFIG_KEY_SCHEMA => array(
         'userPHID_dateFrom' => array(
           'columns' => array('userPHID', 'dateTo'),
         ),
       ),
       self::CONFIG_SERIALIZATION => array(
         'recurrenceFrequency' => self::SERIALIZATION_JSON,
       ),
     ) + parent::getConfiguration();
   }
 
   public function generatePHID() {
     return PhabricatorPHID::generateNewPHID(
       PhabricatorCalendarEventPHIDType::TYPECONST);
   }
 
   public function getMonogram() {
     return 'E'.$this->getID();
   }
 
   public function getInvitees() {
     return $this->assertAttached($this->invitees);
   }
 
   public function attachInvitees(array $invitees) {
     $this->invitees = $invitees;
     return $this;
   }
 
   public function getUserInviteStatus($phid) {
     $invitees = $this->getInvitees();
     $invitees = mpull($invitees, null, 'getInviteePHID');
 
     $invited = idx($invitees, $phid);
     if (!$invited) {
       return PhabricatorCalendarEventInvitee::STATUS_UNINVITED;
     }
     $invited = $invited->getStatus();
     return $invited;
   }
 
   public function getIsUserAttending($phid) {
     $attending_status = PhabricatorCalendarEventInvitee::STATUS_ATTENDING;
 
     $old_status = $this->getUserInviteStatus($phid);
     $is_attending = ($old_status == $attending_status);
 
     return $is_attending;
   }
 
   public function getIsUserInvited($phid) {
     $uninvited_status = PhabricatorCalendarEventInvitee::STATUS_UNINVITED;
     $declined_status = PhabricatorCalendarEventInvitee::STATUS_DECLINED;
     $status = $this->getUserInviteStatus($phid);
     if ($status == $uninvited_status || $status == $declined_status) {
       return false;
     }
     return true;
   }
 
   public function getIsGhostEvent() {
     return $this->isGhostEvent;
   }
 
   public function setIsGhostEvent($is_ghost_event) {
     $this->isGhostEvent = $is_ghost_event;
     return $this;
   }
 
   public function generateNthGhost(
     $sequence_index,
     PhabricatorUser $actor) {
 
     $frequency = $this->getFrequencyUnit();
     $modify_key = '+'.$sequence_index.' '.$frequency;
 
     $date = $this->dateFrom;
     $date_time = PhabricatorTime::getDateTimeFromEpoch($date, $actor);
     $date_time->modify($modify_key);
     $date = $date_time->format('U');
 
     $duration = $this->dateTo - $this->dateFrom;
 
     $edit_policy = PhabricatorPolicies::POLICY_NOONE;
 
     $ghost_event = id(clone $this)
       ->setIsGhostEvent(true)
       ->setDateFrom($date)
       ->setDateTo($date + $duration)
-      ->setIsRecurring(false)
-      ->setRecurrenceFrequency(null)
+      ->setIsRecurring(true)
+      ->setRecurrenceFrequency($this->recurrenceFrequency)
       ->setInstanceOfEventPHID($this->getPHID())
       ->setSequenceIndex($sequence_index)
       ->setEditPolicy($edit_policy);
 
     return $ghost_event;
   }
 
   public function getFrequencyUnit() {
     $frequency = idx($this->recurrenceFrequency, 'rule');
 
     switch ($frequency) {
       case 'daily':
         return 'day';
       case 'weekly':
         return 'week';
       case 'monthly':
         return 'month';
       case 'yearly':
         return 'yearly';
       default:
         return 'day';
     }
   }
 
   public function getURI() {
     $uri = '/'.$this->getMonogram();
     if ($this->isGhostEvent) {
       $uri = $uri.'/'.$this->sequenceIndex;
     }
     return $uri;
   }
 
 /* -(  Markup Interface  )--------------------------------------------------- */
 
 
   /**
    * @task markup
    */
   public function getMarkupFieldKey($field) {
     $hash = PhabricatorHash::digest($this->getMarkupText($field));
     $id = $this->getID();
     return "calendar:T{$id}:{$field}:{$hash}";
   }
 
 
   /**
    * @task markup
    */
   public function getMarkupText($field) {
     return $this->getDescription();
   }
 
 
   /**
    * @task markup
    */
   public function newMarkupEngine($field) {
     return PhabricatorMarkupEngine::newCalendarMarkupEngine();
   }
 
 
   /**
    * @task markup
    */
   public function didMarkupText(
     $field,
     $output,
     PhutilMarkupEngine $engine) {
     return $output;
   }
 
 
   /**
    * @task markup
    */
   public function shouldUseMarkupCache($field) {
     return (bool)$this->getID();
   }
 
 /* -(  PhabricatorPolicyInterface  )----------------------------------------- */
 
 
   public function getCapabilities() {
     return array(
       PhabricatorPolicyCapability::CAN_VIEW,
       PhabricatorPolicyCapability::CAN_EDIT,
     );
   }
 
   public function getPolicy($capability) {
     switch ($capability) {
       case PhabricatorPolicyCapability::CAN_VIEW:
         return $this->getViewPolicy();
       case PhabricatorPolicyCapability::CAN_EDIT:
         return $this->getEditPolicy();
     }
   }
 
   public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
     // The owner of a task can always view and edit it.
     $user_phid = $this->getUserPHID();
     if ($this->isGhostEvent) {
       return false;
     }
     if ($user_phid) {
       $viewer_phid = $viewer->getPHID();
       if ($viewer_phid == $user_phid) {
         return true;
       }
     }
 
     if ($capability == PhabricatorPolicyCapability::CAN_VIEW) {
       $status = $this->getUserInviteStatus($viewer->getPHID());
       if ($status == PhabricatorCalendarEventInvitee::STATUS_INVITED ||
         $status == PhabricatorCalendarEventInvitee::STATUS_ATTENDING ||
         $status == PhabricatorCalendarEventInvitee::STATUS_DECLINED) {
         return true;
       }
     }
 
     return false;
   }
 
   public function describeAutomaticCapability($capability) {
     return pht('The owner of an event can always view and edit it,
       and invitees can always view it, except if the event is an
       instance of a recurring event.');
   }
 
 /* -(  PhabricatorApplicationTransactionInterface  )------------------------- */
 
 
   public function getApplicationTransactionEditor() {
     return new PhabricatorCalendarEventEditor();
   }
 
   public function getApplicationTransactionObject() {
     return $this;
   }
 
   public function getApplicationTransactionTemplate() {
     return new PhabricatorCalendarEventTransaction();
   }
 
   public function willRenderTimeline(
     PhabricatorApplicationTransactionView $timeline,
     AphrontRequest $request) {
 
     return $timeline;
   }
 
 /* -(  PhabricatorSubscribableInterface  )----------------------------------- */
 
 
   public function isAutomaticallySubscribed($phid) {
     return ($phid == $this->getUserPHID());
   }
 
   public function shouldShowSubscribersProperty() {
     return true;
   }
 
   public function shouldAllowSubscription($phid) {
     return true;
   }
 
 /* -(  PhabricatorTokenReceiverInterface  )---------------------------------- */
 
 
   public function getUsersToNotifyOfTokenGiven() {
     return array($this->getUserPHID());
   }
 
 /* -(  PhabricatorDestructibleInterface  )----------------------------------- */
 
 
   public function destroyObjectPermanently(
     PhabricatorDestructionEngine $engine) {
 
     $this->openTransaction();
     $this->delete();
     $this->saveTransaction();
   }
 }
diff --git a/src/applications/calendar/storage/PhabricatorCalendarEventTransaction.php b/src/applications/calendar/storage/PhabricatorCalendarEventTransaction.php
index 64656b48e4..2d24281562 100644
--- a/src/applications/calendar/storage/PhabricatorCalendarEventTransaction.php
+++ b/src/applications/calendar/storage/PhabricatorCalendarEventTransaction.php
@@ -1,513 +1,511 @@
 <?php
 
 final class PhabricatorCalendarEventTransaction
   extends PhabricatorApplicationTransaction {
 
   const TYPE_NAME = 'calendar.name';
   const TYPE_START_DATE = 'calendar.startdate';
   const TYPE_END_DATE = 'calendar.enddate';
   const TYPE_DESCRIPTION = 'calendar.description';
   const TYPE_CANCEL = 'calendar.cancel';
   const TYPE_ALL_DAY = 'calendar.allday';
   const TYPE_ICON = 'calendar.icon';
   const TYPE_INVITE = 'calendar.invite';
 
   const TYPE_RECURRING = 'calendar.recurring';
   const TYPE_FREQUENCY = 'calendar.frequency';
   const TYPE_RECURRENCE_END_DATE = 'calendar.recurrenceenddate';
 
   const TYPE_INSTANCE_OF_EVENT = 'calendar.instanceofevent';
   const TYPE_SEQUENCE_INDEX = 'calendar.sequenceindex';
 
   const MAILTAG_RESCHEDULE = 'calendar-reschedule';
   const MAILTAG_CONTENT = 'calendar-content';
   const MAILTAG_OTHER = 'calendar-other';
 
   public function getApplicationName() {
     return 'calendar';
   }
 
   public function getApplicationTransactionType() {
     return PhabricatorCalendarEventPHIDType::TYPECONST;
   }
 
   public function getApplicationTransactionCommentObject() {
     return new PhabricatorCalendarEventTransactionComment();
   }
 
   public function getRequiredHandlePHIDs() {
     $phids = parent::getRequiredHandlePHIDs();
 
     switch ($this->getTransactionType()) {
       case self::TYPE_NAME:
       case self::TYPE_START_DATE:
       case self::TYPE_END_DATE:
       case self::TYPE_DESCRIPTION:
       case self::TYPE_CANCEL:
       case self::TYPE_ALL_DAY:
       case self::TYPE_RECURRING:
       case self::TYPE_FREQUENCY:
       case self::TYPE_RECURRENCE_END_DATE:
       case self::TYPE_INSTANCE_OF_EVENT:
       case self::TYPE_SEQUENCE_INDEX:
         $phids[] = $this->getObjectPHID();
         break;
       case self::TYPE_INVITE:
         $new = $this->getNewValue();
         foreach ($new as $phid => $status) {
           $phids[] = $phid;
         }
         break;
     }
 
     return $phids;
   }
 
   public function shouldHide() {
     $old = $this->getOldValue();
     switch ($this->getTransactionType()) {
       case self::TYPE_START_DATE:
       case self::TYPE_END_DATE:
       case self::TYPE_DESCRIPTION:
       case self::TYPE_CANCEL:
       case self::TYPE_ALL_DAY:
       case self::TYPE_INVITE:
       case self::TYPE_RECURRING:
       case self::TYPE_FREQUENCY:
       case self::TYPE_RECURRENCE_END_DATE:
       case self::TYPE_INSTANCE_OF_EVENT:
       case self::TYPE_SEQUENCE_INDEX:
         return ($old === null);
     }
     return parent::shouldHide();
   }
 
   public function getIcon() {
     switch ($this->getTransactionType()) {
       case self::TYPE_ICON:
         return $this->getNewValue();
       case self::TYPE_NAME:
       case self::TYPE_START_DATE:
       case self::TYPE_END_DATE:
       case self::TYPE_DESCRIPTION:
       case self::TYPE_ALL_DAY:
       case self::TYPE_CANCEL:
       case self::TYPE_RECURRING:
       case self::TYPE_FREQUENCY:
       case self::TYPE_RECURRENCE_END_DATE:
       case self::TYPE_INSTANCE_OF_EVENT:
       case self::TYPE_SEQUENCE_INDEX:
         return 'fa-pencil';
         break;
       case self::TYPE_INVITE:
         return 'fa-user-plus';
         break;
     }
     return parent::getIcon();
   }
 
   public function getTitle() {
     $author_phid = $this->getAuthorPHID();
     $object_phid = $this->getObjectPHID();
 
     $old = $this->getOldValue();
     $new = $this->getNewValue();
 
     $type = $this->getTransactionType();
     switch ($type) {
       case self::TYPE_NAME:
         if ($old === null) {
           return pht(
             '%s created this event.',
             $this->renderHandleLink($author_phid));
         } else {
           return pht(
             '%s changed the name of this event from %s to %s.',
             $this->renderHandleLink($author_phid),
             $old,
             $new);
         }
       case self::TYPE_START_DATE:
         if ($old) {
           return pht(
             '%s edited the start date of this event.',
             $this->renderHandleLink($author_phid));
         }
         break;
       case self::TYPE_END_DATE:
         if ($old) {
           return pht(
             '%s edited the end date of this event.',
             $this->renderHandleLink($author_phid));
         }
         break;
       case self::TYPE_DESCRIPTION:
         return pht(
           "%s updated the event's description.",
           $this->renderHandleLink($author_phid));
       case self::TYPE_ALL_DAY:
         if ($new) {
           return pht(
             '%s made this an all day event.',
             $this->renderHandleLink($author_phid));
         } else {
           return pht(
             '%s converted this from an all day event.',
             $this->renderHandleLink($author_phid));
         }
       case self::TYPE_ICON:
         return pht(
           '%s set this event\'s icon to %s.',
           $this->renderHandleLink($author_phid),
           PhabricatorCalendarIcon::getLabel($new));
         break;
       case self::TYPE_CANCEL:
         if ($new) {
           return pht(
             '%s cancelled this event.',
             $this->renderHandleLink($author_phid));
         } else {
           return pht(
             '%s reinstated this event.',
             $this->renderHandleLink($author_phid));
         }
       case self::TYPE_INVITE:
         $text = null;
 
         if (count($old) === 1
           && count($new) === 1
           && isset($old[$author_phid])) {
           // user joined/declined/accepted event themself
           $old_status = $old[$author_phid];
           $new_status = $new[$author_phid];
 
           if ($old_status !== $new_status) {
             switch ($new_status) {
               case PhabricatorCalendarEventInvitee::STATUS_INVITED:
                 $text = pht(
                   '%s has joined this event.',
                   $this->renderHandleLink($author_phid));
                   break;
               case PhabricatorCalendarEventInvitee::STATUS_ATTENDING:
                 $text = pht(
                   '%s is attending this event.',
                   $this->renderHandleLink($author_phid));
                   break;
               case PhabricatorCalendarEventInvitee::STATUS_DECLINED:
               case PhabricatorCalendarEventInvitee::STATUS_UNINVITED:
                 $text = pht(
                   '%s has declined this event.',
                   $this->renderHandleLink($author_phid));
                   break;
               default:
                 $text = pht(
                   '%s has changed their status for this event.',
                   $this->renderHandleLink($author_phid));
                 break;
             }
           }
         } else {
           // user changed status for many users
           $self_joined = null;
           $self_declined = null;
           $added = array();
           $uninvited = array();
 
           foreach ($new as $phid => $status) {
             if ($status == PhabricatorCalendarEventInvitee::STATUS_INVITED
               || $status == PhabricatorCalendarEventInvitee::STATUS_ATTENDING) {
               // added users
               $added[] = $phid;
             } else if (
               $status == PhabricatorCalendarEventInvitee::STATUS_DECLINED
               || $status == PhabricatorCalendarEventInvitee::STATUS_UNINVITED) {
               $uninvited[] = $phid;
             }
           }
 
           $count_added = count($added);
           $count_uninvited = count($uninvited);
           $added_text = null;
           $uninvited_text = null;
 
           if ($count_added > 0 && $count_uninvited == 0) {
             $added_text = $this->renderHandleList($added);
             $text = pht('%s invited %s.',
               $this->renderHandleLink($author_phid),
               $added_text);
           } else if ($count_added > 0 && $count_uninvited > 0) {
             $added_text = $this->renderHandleList($added);
             $uninvited_text = $this->renderHandleList($uninvited);
             $text = pht('%s invited %s and uninvited: %s',
               $this->renderHandleLink($author_phid),
               $added_text,
               $uninvited_text);
           } else if ($count_added == 0 && $count_uninvited > 0) {
             $uninvited_text = $this->renderHandleList($uninvited);
             $text = pht('%s uninvited %s.',
               $this->renderHandleLink($author_phid),
               $uninvited_text);
           } else {
             $text = pht('%s updated the invitee list.',
               $this->renderHandleLink($author_phid));
           }
         }
         return $text;
       case self::TYPE_RECURRING:
       case self::TYPE_FREQUENCY:
       case self::TYPE_RECURRENCE_END_DATE:
       case self::TYPE_INSTANCE_OF_EVENT:
       case self::TYPE_SEQUENCE_INDEX:
         return pht('Recurring event has been updated');
     }
     return parent::getTitle();
   }
 
   public function getTitleForFeed() {
     $author_phid = $this->getAuthorPHID();
     $object_phid = $this->getObjectPHID();
 
     $old = $this->getOldValue();
     $new = $this->getNewValue();
 
     $viewer = $this->getViewer();
 
     $type = $this->getTransactionType();
     switch ($type) {
       case self::TYPE_NAME:
         if ($old === null) {
           return pht(
             '%s created %s',
             $this->renderHandleLink($author_phid),
             $this->renderHandleLink($object_phid));
         } else {
           return pht(
             '%s changed the name of %s from %s to %s.',
             $this->renderHandleLink($author_phid),
             $this->renderHandleLink($object_phid),
             $old,
             $new);
         }
       case self::TYPE_START_DATE:
         if ($old) {
           $old = phabricator_datetime($old, $viewer);
           $new = phabricator_datetime($new, $viewer);
           return pht(
             '%s changed the start date of %s from %s to %s.',
             $this->renderHandleLink($author_phid),
             $this->renderHandleLink($object_phid),
             $old,
             $new);
         }
         break;
       case self::TYPE_END_DATE:
         if ($old) {
           $old = phabricator_datetime($old, $viewer);
           $new = phabricator_datetime($new, $viewer);
           return pht(
             '%s edited the end date of %s from %s to %s.',
             $this->renderHandleLink($author_phid),
             $this->renderHandleLink($object_phid),
             $old,
             $new);
         }
         break;
       case self::TYPE_DESCRIPTION:
         return pht(
           '%s updated the description of %s.',
           $this->renderHandleLink($author_phid),
           $this->renderHandleLink($object_phid));
       case self::TYPE_ALL_DAY:
         if ($new) {
           return pht(
             '%s made %s an all day event.',
             $this->renderHandleLink($author_phid),
             $this->renderHandleLink($object_phid));
         } else {
           return pht(
             '%s converted %s from an all day event.',
             $this->renderHandleLink($author_phid),
             $this->renderHandleLink($object_phid));
         }
       case self::TYPE_ICON:
         return pht(
           '%s set the icon for %s to %s.',
           $this->renderHandleLink($author_phid),
           $this->renderHandleLink($object_phid),
           PhabricatorCalendarIcon::getLabel($new));
       case self::TYPE_CANCEL:
         if ($new) {
           return pht(
             '%s cancelled %s.',
             $this->renderHandleLink($author_phid),
             $this->renderHandleLink($object_phid));
         } else {
           return pht(
             '%s reinstated %s.',
             $this->renderHandleLink($author_phid),
             $this->renderHandleLink($object_phid));
         }
       case self::TYPE_INVITE:
         $text = null;
 
         if (count($old) === 1
           && count($new) === 1
           && isset($old[$author_phid])) {
           // user joined/declined/accepted event themself
           $old_status = $old[$author_phid];
           $new_status = $new[$author_phid];
 
           if ($old_status !== $new_status) {
             switch ($new_status) {
               case PhabricatorCalendarEventInvitee::STATUS_INVITED:
                 $text = pht(
                   '%s has joined %s.',
                   $this->renderHandleLink($author_phid),
                   $this->renderHandleLink($object_phid));
                   break;
               case PhabricatorCalendarEventInvitee::STATUS_ATTENDING:
                 $text = pht(
                   '%s is attending %s.',
                   $this->renderHandleLink($author_phid),
                   $this->renderHandleLink($object_phid));
                   break;
               case PhabricatorCalendarEventInvitee::STATUS_DECLINED:
               case PhabricatorCalendarEventInvitee::STATUS_UNINVITED:
                 $text = pht(
                   '%s has declined %s.',
                   $this->renderHandleLink($author_phid),
                   $this->renderHandleLink($object_phid));
                   break;
               default:
                 $text = pht(
                   '%s has changed their status of %s.',
                   $this->renderHandleLink($author_phid),
                   $this->renderHandleLink($object_phid));
                 break;
             }
           }
         } else {
           // user changed status for many users
           $self_joined = null;
           $self_declined = null;
           $added = array();
           $uninvited = array();
 
-          // $event = $this->renderHandleLink($object_phid);
-
           foreach ($new as $phid => $status) {
             if ($status == PhabricatorCalendarEventInvitee::STATUS_INVITED
               || $status == PhabricatorCalendarEventInvitee::STATUS_ATTENDING) {
               // added users
               $added[] = $phid;
             } else if (
               $status == PhabricatorCalendarEventInvitee::STATUS_DECLINED
               || $status == PhabricatorCalendarEventInvitee::STATUS_UNINVITED) {
               $uninvited[] = $phid;
             }
           }
 
           $count_added = count($added);
           $count_uninvited = count($uninvited);
           $added_text = null;
           $uninvited_text = null;
 
           if ($count_added > 0 && $count_uninvited == 0) {
             $added_text = $this->renderHandleList($added);
             $text = pht('%s invited %s to %s.',
               $this->renderHandleLink($author_phid),
               $added_text,
               $this->renderHandleLink($object_phid));
           } else if ($count_added > 0 && $count_uninvited > 0) {
             $added_text = $this->renderHandleList($added);
             $uninvited_text = $this->renderHandleList($uninvited);
             $text = pht('%s invited %s and uninvited %s to %s',
               $this->renderHandleLink($author_phid),
               $added_text,
               $uninvited_text,
               $this->renderHandleLink($object_phid));
           } else if ($count_added == 0 && $count_uninvited > 0) {
             $uninvited_text = $this->renderHandleList($uninvited);
             $text = pht('%s uninvited %s to %s.',
               $this->renderHandleLink($author_phid),
               $uninvited_text,
               $this->renderHandleLink($object_phid));
           } else {
             $text = pht('%s updated the invitee list of %s.',
               $this->renderHandleLink($author_phid),
               $this->renderHandleLink($object_phid));
           }
         }
         return $text;
       case self::TYPE_RECURRING:
       case self::TYPE_FREQUENCY:
       case self::TYPE_RECURRENCE_END_DATE:
       case self::TYPE_INSTANCE_OF_EVENT:
       case self::TYPE_SEQUENCE_INDEX:
         return pht('Recurring event has been updated');
     }
 
     return parent::getTitleForFeed();
   }
 
   public function getColor() {
     $old = $this->getOldValue();
     $new = $this->getNewValue();
 
     switch ($this->getTransactionType()) {
       case self::TYPE_NAME:
       case self::TYPE_START_DATE:
       case self::TYPE_END_DATE:
       case self::TYPE_DESCRIPTION:
       case self::TYPE_CANCEL:
       case self::TYPE_INVITE:
         return PhabricatorTransactions::COLOR_GREEN;
     }
 
     return parent::getColor();
   }
 
 
   public function hasChangeDetails() {
     switch ($this->getTransactionType()) {
       case self::TYPE_DESCRIPTION:
         return ($this->getOldValue() !== null);
     }
 
     return parent::hasChangeDetails();
   }
 
   public function renderChangeDetails(PhabricatorUser $viewer) {
     switch ($this->getTransactionType()) {
       case self::TYPE_DESCRIPTION:
         $old = $this->getOldValue();
         $new = $this->getNewValue();
 
         return $this->renderTextCorpusChangeDetails(
           $viewer,
           $old,
           $new);
     }
 
     return parent::renderChangeDetails($viewer);
   }
 
   public function getMailTags() {
     $tags = array();
     switch ($this->getTransactionType()) {
       case self::TYPE_NAME:
       case self::TYPE_DESCRIPTION:
       case self::TYPE_INVITE:
       case self::TYPE_ICON:
         $tags[] = self::MAILTAG_CONTENT;
         break;
       case self::TYPE_START_DATE:
       case self::TYPE_END_DATE:
       case self::TYPE_CANCEL:
         $tags[] = self::MAILTAG_RESCHEDULE;
         break;
     }
     return $tags;
   }
 
 }