diff --git a/src/applications/herald/storage/HeraldRule.php b/src/applications/herald/storage/HeraldRule.php
index d57be2dba5..28b0899b09 100644
--- a/src/applications/herald/storage/HeraldRule.php
+++ b/src/applications/herald/storage/HeraldRule.php
@@ -1,253 +1,265 @@
 <?php
 
 final class HeraldRule extends HeraldDAO
   implements
     PhabricatorFlaggableInterface,
-    PhabricatorPolicyInterface {
+    PhabricatorPolicyInterface,
+    PhabricatorDestructableInterface {
 
   const TABLE_RULE_APPLIED = 'herald_ruleapplied';
 
   protected $name;
   protected $authorPHID;
 
   protected $contentType;
   protected $mustMatchAll;
   protected $repetitionPolicy;
   protected $ruleType;
   protected $isDisabled = 0;
   protected $triggerObjectPHID;
 
   protected $configVersion = 36;
 
   // phids for which this rule has been applied
   private $ruleApplied = self::ATTACHABLE;
   private $validAuthor = self::ATTACHABLE;
   private $author = self::ATTACHABLE;
   private $conditions;
   private $actions;
   private $triggerObject = self::ATTACHABLE;
 
   public function getConfiguration() {
     return array(
       self::CONFIG_AUX_PHID => true,
     ) + parent::getConfiguration();
   }
 
   public function generatePHID() {
     return PhabricatorPHID::generateNewPHID(HeraldPHIDTypeRule::TYPECONST);
   }
 
   public function getRuleApplied($phid) {
     return $this->assertAttachedKey($this->ruleApplied, $phid);
   }
 
   public function setRuleApplied($phid, $applied) {
     if ($this->ruleApplied === self::ATTACHABLE) {
       $this->ruleApplied = array();
     }
     $this->ruleApplied[$phid] = $applied;
     return $this;
   }
 
   public function loadConditions() {
     if (!$this->getID()) {
       return array();
     }
     return id(new HeraldCondition())->loadAllWhere(
       'ruleID = %d',
       $this->getID());
   }
 
   public function attachConditions(array $conditions) {
     assert_instances_of($conditions, 'HeraldCondition');
     $this->conditions = $conditions;
     return $this;
   }
 
   public function getConditions() {
     // TODO: validate conditions have been attached.
     return $this->conditions;
   }
 
   public function loadActions() {
     if (!$this->getID()) {
       return array();
     }
     return id(new HeraldAction())->loadAllWhere(
       'ruleID = %d',
       $this->getID());
   }
 
   public function attachActions(array $actions) {
     // TODO: validate actions have been attached.
     assert_instances_of($actions, 'HeraldAction');
     $this->actions = $actions;
     return $this;
   }
 
   public function getActions() {
     return $this->actions;
   }
 
   public function loadEdits() {
     if (!$this->getID()) {
       return array();
     }
     $edits = id(new HeraldRuleEdit())->loadAllWhere(
       'ruleID = %d ORDER BY dateCreated DESC',
       $this->getID());
 
     return $edits;
   }
 
   public function logEdit($editor_phid, $action) {
     id(new HeraldRuleEdit())
       ->setRuleID($this->getID())
       ->setRuleName($this->getName())
       ->setEditorPHID($editor_phid)
       ->setAction($action)
       ->save();
   }
 
   public function saveConditions(array $conditions) {
     assert_instances_of($conditions, 'HeraldCondition');
     return $this->saveChildren(
       id(new HeraldCondition())->getTableName(),
       $conditions);
   }
 
   public function saveActions(array $actions) {
     assert_instances_of($actions, 'HeraldAction');
     return $this->saveChildren(
       id(new HeraldAction())->getTableName(),
       $actions);
   }
 
   protected function saveChildren($table_name, array $children) {
     assert_instances_of($children, 'HeraldDAO');
 
     if (!$this->getID()) {
       throw new Exception("Save rule before saving children.");
     }
 
     foreach ($children as $child) {
       $child->setRuleID($this->getID());
     }
 
     $this->openTransaction();
       queryfx(
         $this->establishConnection('w'),
         'DELETE FROM %T WHERE ruleID = %d',
         $table_name,
         $this->getID());
       foreach ($children as $child) {
         $child->save();
       }
     $this->saveTransaction();
   }
 
   public function delete() {
     $this->openTransaction();
       queryfx(
         $this->establishConnection('w'),
         'DELETE FROM %T WHERE ruleID = %d',
         id(new HeraldCondition())->getTableName(),
         $this->getID());
       queryfx(
         $this->establishConnection('w'),
         'DELETE FROM %T WHERE ruleID = %d',
         id(new HeraldAction())->getTableName(),
         $this->getID());
       $result = parent::delete();
     $this->saveTransaction();
 
     return $result;
   }
 
   public function hasValidAuthor() {
     return $this->assertAttached($this->validAuthor);
   }
 
   public function attachValidAuthor($valid) {
     $this->validAuthor = $valid;
     return $this;
   }
 
   public function getAuthor() {
     return $this->assertAttached($this->author);
   }
 
   public function attachAuthor(PhabricatorUser $user) {
     $this->author = $user;
     return $this;
   }
 
   public function isGlobalRule() {
     return ($this->getRuleType() === HeraldRuleTypeConfig::RULE_TYPE_GLOBAL);
   }
 
   public function isPersonalRule() {
     return ($this->getRuleType() === HeraldRuleTypeConfig::RULE_TYPE_PERSONAL);
   }
 
   public function isObjectRule() {
     return ($this->getRuleType() == HeraldRuleTypeConfig::RULE_TYPE_OBJECT);
   }
 
   public function attachTriggerObject($trigger_object) {
     $this->triggerObject = $trigger_object;
     return $this;
   }
 
   public function getTriggerObject() {
     return $this->assertAttached($this->triggerObject);
   }
 
 
 /* -(  PhabricatorPolicyInterface  )----------------------------------------- */
 
 
   public function getCapabilities() {
     return array(
       PhabricatorPolicyCapability::CAN_VIEW,
       PhabricatorPolicyCapability::CAN_EDIT,
     );
   }
 
   public function getPolicy($capability) {
     if ($this->isGlobalRule()) {
       switch ($capability) {
         case PhabricatorPolicyCapability::CAN_VIEW:
           return PhabricatorPolicies::POLICY_USER;
         case PhabricatorPolicyCapability::CAN_EDIT:
           $app = 'PhabricatorApplicationHerald';
           $herald = PhabricatorApplication::getByClass($app);
           $global = HeraldCapabilityManageGlobalRules::CAPABILITY;
           return $herald->getPolicy($global);
       }
     } else if ($this->isObjectRule()) {
       return $this->getTriggerObject()->getPolicy($capability);
     } else {
       return PhabricatorPolicies::POLICY_NOONE;
     }
   }
 
   public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
     if ($this->isPersonalRule()) {
       return ($viewer->getPHID() == $this->getAuthorPHID());
     } else {
       return false;
     }
   }
 
   public function describeAutomaticCapability($capability) {
     if ($this->isPersonalRule()) {
       return pht("A personal rule's owner can always view and edit it.");
     } else if ($this->isObjectRule()) {
       return pht("Object rules inherit the policies of their objects.");
     }
 
     return null;
   }
 
+
+/* -(  PhabricatorDestructableInterface  )----------------------------------- */
+
+  public function destroyObjectPermanently(
+    PhabricatorDestructionEngine $engine) {
+
+    $this->openTransaction();
+    $this->delete();
+    $this->saveTransaction();
+  }
+
 }