Fix board links in TaskDetail

Summary: Not sure if this is the correct fix, but I think it's where you intend to go?

Test Plan: Click on link in Task, get the the correct board. Click lots of links of boards and make sure everything still works.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T5361

Differential Revision: https://secure.phabricator.com/D9520

src/applications/maniphest/controller/ManiphestTaskDetailController.php

@@ -565,16 +565,10 @@ final class ManiphestTaskDetailController extends ManiphestController {
         $column = head(array_intersect_key($columns, $in_column_phids));
         if ($column) {
           $column_name = pht('(%s)', $column->getDisplayName());
-          // TODO: This is really hacky but there's no cleaner way to do it
-          // right now, T4022 should give us better tools for this.
-          $column_href = str_replace(
-            'project/view',
-            'project/board',
-            $handle->getURI());
           $column_link = phutil_tag(
             'a',
             array(
-              'href' => $column_href,
+              'href' => $handle->getURI().'board/',
               'class' => 'maniphest-board-link',
             ),
             $column_name);

src/applications/project/application/PhabricatorApplicationProject.php

@@ -79,6 +79,7 @@ final class PhabricatorApplicationProject extends PhabricatorApplication {
       ),
       '/tag/' => array(
         '(?P<slug>[^/]+)/' => 'PhabricatorProjectProfileController',
+        '(?P<slug>[^/]+)/board/' => 'PhabricatorProjectBoardViewController',
       ),
     );
   }

src/applications/project/controller/PhabricatorProjectBoardViewController.php

@@ -4,6 +4,7 @@ final class PhabricatorProjectBoardViewController
   extends PhabricatorProjectBoardController {
 
   private $id;
+  private $slug;
   private $handles;
   private $queryKey;
   private $filter;
@@ -13,7 +14,8 @@ final class PhabricatorProjectBoardViewController
   }
 
   public function willProcessRequest(array $data) {
-    $this->id = $data['id'];
+    $this->id = idx($data, 'id');
+    $this->slug = idx($data, 'slug');
     $this->queryKey = idx($data, 'queryKey');
     $this->filter = (bool)idx($data, 'filter');
   }
@@ -24,12 +26,17 @@ final class PhabricatorProjectBoardViewController
 
     $project = id(new PhabricatorProjectQuery())
       ->setViewer($viewer)
-      ->needImages(true)
-      ->withIDs(array($this->id))
-      ->executeOne();
+      ->needImages(true);
+    if ($this->slug) {
+      $project->withSlugs(array($this->slug));
+    } else {
+      $project->withIDs(array($this->id));
+    }
+    $project = $project->executeOne();
     if (!$project) {
       return new Aphront404Response();
     }
+
     $this->setProject($project);
 
     $columns = id(new PhabricatorProjectColumnQuery())