After saving a custom query, redirect to its results page

Summary:
Ref T2625. Currently, after saving a query the user is redirected to "/search/", which isn't especially useful. Instead, redirect them back into the application they came from and to the query results page.

Also, query hashes may contain ".", which does not match `\w`. Use `[^/]` instead.

Test Plan: Saved some custom queries.

Reviewers: btrahan, blc

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2625

Differential Revision: https://secure.phabricator.com/D6055

src/applications/paste/application/PhabricatorApplicationPaste.php

@@ -36,7 +36,7 @@ final class PhabricatorApplicationPaste extends PhabricatorApplication {
         'create/'                 => 'PhabricatorPasteEditController',
         'edit/(?P<id>[1-9]\d*)/'  => 'PhabricatorPasteEditController',
         'filter/(?P<filter>\w+)/' => 'PhabricatorPasteListController',
-        'query/(?P<queryKey>\w+)/'=> 'PhabricatorPasteListController',
+        'query/(?P<queryKey>[^/]+)/'=> 'PhabricatorPasteListController',
         'savedqueries/'           => 'PhabricatorPasteQueriesController',
       ),
     );

src/applications/paste/query/PhabricatorPasteSearchEngine.php

@@ -105,4 +105,8 @@ final class PhabricatorPasteSearchEngine
     return $this;
   }
 
+  public function getQueryResultsPageURI(PhabricatorSavedQuery $query) {
+    return '/paste/query/'.$query->getQueryKey().'/';
+  }
+
 }

src/applications/search/application/PhabricatorApplicationSearch.php

@@ -34,7 +34,7 @@ final class PhabricatorApplicationSearch extends PhabricatorApplication {
         'index/(?P<phid>[^/]+)/' => 'PhabricatorSearchIndexController',
         'hovercard/(?P<mode>retrieve|test)/' =>
           'PhabricatorSearchHovercardController',
-        'name/(?P<queryKey>\w+)/' => 'PhabricatorSearchNameController',
+        'name/(?P<queryKey>[^/]+)/' => 'PhabricatorSearchNameController',
         ),
     );
   }

src/applications/search/controller/PhabricatorSearchNameController.php

@@ -16,17 +16,16 @@ final class PhabricatorSearchNameController
     $request = $this->getRequest();
     $user = $request->getUser();
 
-    if ($this->queryKey) {
     $saved_query = id(new PhabricatorSavedQueryQuery())
       ->setViewer($user)
       ->withQueryKeys(array($this->queryKey))
       ->executeOne();
+
     if (!$saved_query) {
       return new Aphront404Response();
     }
-    } else {
-      return new Aphront404Response();
-    }
+
+    $engine = $saved_query->newEngine();
 
     if ($request->isFormPost()) {
       $named_query = id(new PhabricatorNamedQuery())
@@ -42,7 +41,7 @@ final class PhabricatorSearchNameController
       }
 
       return id(new AphrontRedirectResponse())
-        ->setURI('/search/');
+        ->setURI($engine->getQueryResultsPageURI($saved_query));
     }
 
     $form = id(new AphrontFormView())

src/applications/search/engine/PhabricatorApplicationSearchEngine.php

@@ -34,4 +34,13 @@ abstract class PhabricatorApplicationSearchEngine {
    */
   abstract public function buildSearchForm(PhabricatorSavedQuery $query);
 
+
+  /**
+   * Return an application URI corresponding to the results page of a query.
+   * Normally, this is something like `/application/query/QUERYKEY/`.
+   *
+   * @param   PhabricatorSavedQuery   The query to build a URI for.
+   * @return  string                  URI where the query can be executed.
+   */
+  abstract public function getQueryResultsPageURI(PhabricatorSavedQuery $query);
 }

src/applications/search/storage/PhabricatorSavedQuery.php

@@ -31,12 +31,19 @@ final class PhabricatorSavedQuery extends PhabricatorSearchDAO
       throw new Exception(pht("Engine class is null."));
     }
 
+    // Instantiate the engine to make sure it's valid.
+    $this->newEngine();
+
     $serial = $this->getEngineClassName().serialize($this->parameters);
     $this->queryKey = PhabricatorHash::digestForIndex($serial);
 
     return parent::save();
   }
 
+  public function newEngine() {
+    return newv($this->getEngineClassName(), array());
+  }
+
 
 /* -(  PhabricatorPolicyInterface  )----------------------------------------- */