Enable prefilling of projects and priority fields in Maniphest task creation

Summary:
Projects and priority inputs can be prefilled similar to how title
and description fields work.

Prefilling of projects already worked but used PHIDs instead of
more user friendly name so I changed that too.

Test Plan:
Visit [[/maniphest/task/create/?projects=Maniphest;Easy&priority=100&assign=vrana&title=Hip-hip&description=hooray!|example]]
and see prefilled form fields.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley

CC: Korvin, epriestley, aran

Differential Revision: https://secure.phabricator.com/D7394

src/applications/maniphest/controller/ManiphestTaskEditController.php

@@ -49,9 +49,49 @@ final class ManiphestTaskEditController extends ManiphestController {
         $task->setTitle($request->getStr('title'));
 
         if ($can_edit_projects) {
-          $default_projects = $request->getStr('projects');
-          if ($default_projects) {
-            $task->setProjectPHIDs(explode(';', $default_projects));
+          $projects = $request->getStr('projects');
+          if ($projects) {
+            $tokens = explode(';', $projects);
+
+            $slug_map = id(new PhabricatorProjectQuery())
+              ->setViewer($user)
+              ->withPhrictionSlugs($tokens)
+              ->execute();
+
+            $name_map = id(new PhabricatorProjectQuery())
+              ->setViewer($user)
+              ->withNames($tokens)
+              ->execute();
+
+            $phid_map = id(new PhabricatorProjectQuery())
+              ->setViewer($user)
+              ->withPHIDs($tokens)
+              ->execute();
+
+            $all_map = mpull($slug_map, null, 'getPhrictionSlug') +
+              mpull($name_map, null, 'getName') +
+              mpull($phid_map, null, 'getPHID');
+
+            $default_projects = array();
+            foreach ($tokens as $token) {
+              if (isset($all_map[$token])) {
+                $default_projects[] = $all_map[$token]->getPHID();
+              }
+            }
+
+            if ($default_projects) {
+              $task->setProjectPHIDs($default_projects);
+            }
+          }
+        }
+
+        if ($can_edit_priority) {
+          $priority = $request->getInt('priority');
+          if ($priority !== null) {
+            $priority_map = ManiphestTaskPriority::getTaskPriorityMap();
+            if (isset($priority_map[$priority])) {
+                $task->setPriority($priority);
+            }
           }
         }
 

src/applications/project/query/PhabricatorProjectQuery.php

@@ -7,6 +7,7 @@ final class PhabricatorProjectQuery
   private $phids;
   private $memberPHIDs;
   private $slugs;
+  private $names;
 
   private $status       = 'status-any';
   const STATUS_ANY      = 'status-any';
@@ -43,6 +44,11 @@ final class PhabricatorProjectQuery
     return $this;
   }
 
+  public function withNames(array $names) {
+    $this->names = $names;
+    return $this;
+  }
+
   public function needMembers($need_members) {
     $this->needMembers = $need_members;
     return $this;
@@ -224,6 +230,13 @@ final class PhabricatorProjectQuery
         $this->slugs);
     }
 
+    if ($this->names) {
+      $where[] = qsprintf(
+        $conn_r,
+        'name IN (%Ls)',
+        $this->names);
+    }
+
     $where[] = $this->buildPagingClause($conn_r);
 
     return $this->formatWhereClause($where);