Explicitly load assets in revision list

Summary:
Rendering method shouldn't load data.
The view probably shouldn't load data either because it is a job for component (object that both loads data and displays them) but we don't have that concept in Phabricator.
This at least improves the architecture a little bit.

Test Plan: /differential/

Reviewers: epriestley

Reviewed By: epriestley

CC: alanh, aran, Korvin

Differential Revision: https://secure.phabricator.com/D3325

src/applications/differential/controller/DifferentialRevisionListController.php

@@ -439,7 +439,8 @@ final class DifferentialRevisionListController extends DifferentialController {
 
         $view = id(clone $template)
           ->setHighlightAge(true)
-          ->setRevisions($active);
+          ->setRevisions($active)
+          ->loadAssets();
         $views[] = array(
           'title' => 'Action Required',
           'view'  => $view,
@@ -468,7 +469,8 @@ final class DifferentialRevisionListController extends DifferentialController {
         }
 
         $view = id(clone $template)
-          ->setRevisions($waiting);
+          ->setRevisions($waiting)
+          ->loadAssets();
         $views[] = array(
           'title' => 'Waiting On Others',
           'view'  => $view,
@@ -486,7 +488,8 @@ final class DifferentialRevisionListController extends DifferentialController {
           'all'         => 'Revisions',
         );
         $view = id(clone $template)
-          ->setRevisions($revisions);
+          ->setRevisions($revisions)
+          ->loadAssets();
         $views[] = array(
           'title' => idx($titles, $filter),
           'view'  => $view,

src/applications/differential/controller/DifferentialRevisionViewController.php

@@ -862,7 +862,8 @@ final class DifferentialRevisionViewController extends DifferentialController {
     $view = id(new DifferentialRevisionListView())
       ->setRevisions($revisions)
       ->setFields(DifferentialRevisionListView::getDefaultFields())
-      ->setUser($this->getRequest()->getUser());
+      ->setUser($this->getRequest()->getUser())
+      ->loadAssets();
 
     $phids = $view->getRequiredHandlePHIDs();
     $handles = id(new PhabricatorObjectHandleData($phids))->loadHandles();

src/applications/differential/view/DifferentialRevisionListView.php

@@ -22,6 +22,7 @@
 final class DifferentialRevisionListView extends AphrontView {
 
   private $revisions;
+  private $flags = array();
   private $handles;
   private $user;
   private $fields;
@@ -69,6 +70,23 @@ final class DifferentialRevisionListView extends AphrontView {
     return $this;
   }
 
+  public function loadAssets() {
+    $user = $this->user;
+    if (!$user) {
+      throw new Exception("Call setUser() before loadAssets()!");
+    }
+    if ($this->revisions === null) {
+      throw new Exception("Call setRevisions() before loadAssets()!");
+    }
+
+    $this->flags = id(new PhabricatorFlagQuery())
+      ->withOwnerPHIDs(array($user->getPHID()))
+      ->withObjectPHIDs(mpull($this->revisions, 'getPHID'))
+      ->execute();
+
+    return $this;
+  }
+
   public function render() {
 
     $user = $this->user;
@@ -88,11 +106,7 @@ final class DifferentialRevisionListView extends AphrontView {
     Javelin::initBehavior('phabricator-tooltips', array());
     require_celerity_resource('aphront-tooltip-css');
 
-    $flags = id(new PhabricatorFlagQuery())
-      ->withOwnerPHIDs(array($user->getPHID()))
-      ->withObjectPHIDs(mpull($this->revisions, 'getPHID'))
-      ->execute();
-    $flagged = mpull($flags, null, 'getObjectPHID');
+    $flagged = mpull($this->flags, null, 'getObjectPHID');
 
     foreach ($this->fields as $field) {
       $field->setUser($this->user);

src/applications/diffusion/controller/DiffusionController.php

@@ -137,7 +137,8 @@ abstract class DiffusionController extends PhabricatorController {
     $view = id(new DifferentialRevisionListView())
       ->setRevisions($revisions)
       ->setFields(DifferentialRevisionListView::getDefaultFields())
-      ->setUser($this->getRequest()->getUser());
+      ->setUser($this->getRequest()->getUser())
+      ->loadAssets();
 
     $phids = $view->getRequiredHandlePHIDs();
     $handles = id(new PhabricatorObjectHandleData($phids))->loadHandles();

src/applications/directory/controller/PhabricatorDirectoryMainController.php

@@ -326,7 +326,8 @@ final class PhabricatorDirectoryMainController
       ->setHighlightAge(true)
       ->setRevisions($active)
       ->setFields(DifferentialRevisionListView::getDefaultFields())
-      ->setUser($user);
+      ->setUser($user)
+      ->loadAssets();
     $phids = array_merge(
       array($user_phid),
       $revision_view->getRequiredHandlePHIDs());