Provide ordering options in Diffusion application search

Summary: Fixes T2298. Allows repositories to be ordered by name, callsign, commit, or date created. Slightly messy because of cursor paging.

Test Plan: Sorted commits.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2298

Differential Revision: https://secure.phabricator.com/D6919

src/applications/repository/query/PhabricatorRepositoryQuery.php

@@ -12,6 +12,12 @@ final class PhabricatorRepositoryQuery
   const STATUS_ALL = 'status-all';
   private $status = self::STATUS_ALL;
 
+  const ORDER_CREATED = 'order-created';
+  const ORDER_COMMITTED = 'order-committed';
+  const ORDER_CALLSIGN = 'order-callsign';
+  const ORDER_NAME = 'order-name';
+  private $order = self::ORDER_CREATED;
+
   private $needMostRecentCommits;
   private $needCommitCounts;
 
@@ -30,10 +36,6 @@ final class PhabricatorRepositoryQuery
     return $this;
   }
 
-  protected function getReversePaging() {
-    return true;
-  }
-
   public function withStatus($status) {
     $this->status = $status;
     return $this;
@@ -49,6 +51,10 @@ final class PhabricatorRepositoryQuery
     return $this;
   }
 
+  public function setOrder($order) {
+    $this->order = $order;
+    return $this;
+  }
 
   protected function loadPage() {
     $table = new PhabricatorRepository();
@@ -124,16 +130,144 @@ final class PhabricatorRepositoryQuery
     return $repositories;
   }
 
+  public function getReversePaging() {
+    switch ($this->order) {
+      case self::ORDER_CALLSIGN:
+      case self::ORDER_NAME:
+        return true;
+    }
+    return false;
+  }
+
+  protected function getPagingColumn() {
+
+    // TODO: Add a key for ORDER_NAME.
+    // TODO: Add a key for ORDER_COMMITTED.
+
+    $order = $this->order;
+    switch ($order) {
+      case self::ORDER_CREATED:
+        return 'r.id';
+      case self::ORDER_COMMITTED:
+        return 's.epoch';
+      case self::ORDER_CALLSIGN:
+        return 'r.callsign';
+      case self::ORDER_NAME:
+        return 'r.name';
+      default:
+        throw new Exception("Unknown order '{$order}!'");
+    }
+  }
+
+  private function loadCursorObject($id) {
+    $results = id(new PhabricatorRepositoryQuery())
+      ->setViewer($this->getViewer())
+      ->withIDs(array($id))
+      ->execute();
+    return head($results);
+  }
+
+  protected function buildPagingClause(AphrontDatabaseConnection $conn_r) {
+    $default = parent::buildPagingClause($conn_r);
+
+    $before_id = $this->getBeforeID();
+    $after_id = $this->getAfterID();
+
+    if (!$before_id && !$after_id) {
+      return $default;
+    }
+
+    $order = $this->order;
+    if ($order == self::ORDER_CREATED) {
+      return $default;
+    }
+
+    if ($before_id) {
+      $cursor = $this->loadCursorObject($before_id);
+    } else {
+      $cursor = $this->loadCursorObject($after_id);
+    }
+
+    if (!$cursor) {
+      return null;
+    }
+
+    switch ($order) {
+      case self::ORDER_COMMITTED:
+        $commit = $cursor->getMostRecentCommit();
+        if (!$commit) {
+          return null;
+        }
+        $epoch = $commit->getEpoch();
+        if ($before_id) {
+          return qsprintf(
+            $conn_r,
+            '(s.epoch %Q %d OR (s.epoch = %d AND r.id %Q %d))',
+            $this->getReversePaging() ? '<' : '>',
+            $epoch,
+            $epoch,
+            $this->getReversePaging() ? '<' : '>',
+            $cursor->getID());
+        } else {
+          return qsprintf(
+            $conn_r,
+            '(s.epoch %Q %d OR (s.epoch = %d AND r.id %Q %d))',
+            $this->getReversePaging() ? '>' : '<',
+            $epoch,
+            $epoch,
+            $this->getReversePaging() ? '>' : '<',
+            $cursor->getID());
+        }
+      case self::ORDER_CALLSIGN:
+        if ($before_id) {
+          return qsprintf(
+            $conn_r,
+            '(r.callsign %Q %s)',
+            $this->getReversePaging() ? '<' : '>',
+            $cursor->getCallsign());
+        } else {
+          return qsprintf(
+            $conn_r,
+            '(r.callsign %Q %s)',
+            $this->getReversePaging() ? '>' : '<',
+            $cursor->getCallsign());
+        }
+      case self::ORDER_NAME:
+        if ($before_id) {
+          return qsprintf(
+            $conn_r,
+            '(r.name %Q %s OR (r.name = %s AND r.id %Q %d))',
+            $this->getReversePaging() ? '<' : '>',
+            $cursor->getName(),
+            $cursor->getName(),
+            $this->getReversePaging() ? '<' : '>',
+            $cursor->getID());
+        } else {
+          return qsprintf(
+            $conn_r,
+            '(r.name %Q %s OR (r.name = %s AND r.id %Q %d))',
+            $this->getReversePaging() ? '>' : '<',
+            $cursor->getName(),
+            $cursor->getName(),
+            $this->getReversePaging() ? '>' : '<',
+            $cursor->getID());
+        }
+      default:
+        throw new Exception("Unknown order '{$order}'!");
+    }
+  }
+
   private function buildJoinsClause(AphrontDatabaseConnection $conn_r) {
     $joins = array();
 
     $join_summary_table = $this->needCommitCounts ||
-                          $this->needMostRecentCommits;
+                          $this->needMostRecentCommits ||
+                          ($this->order == self::ORDER_COMMITTED);
 
     if ($join_summary_table) {
       $joins[] = qsprintf(
         $conn_r,
-        'LEFT JOIN %T summary ON r.id = summary.repositoryID',
+        'LEFT JOIN %T s ON r.id = s.repositoryID',
         PhabricatorRepository::TABLE_SUMMARY);
     }
 

src/applications/repository/query/PhabricatorRepositorySearchEngine.php

@@ -8,6 +8,7 @@ final class PhabricatorRepositorySearchEngine
 
     $saved->setParameter('callsigns', $request->getStrList('callsigns'));
     $saved->setParameter('status', $request->getStr('status'));
+    $saved->setParameter('order', $request->getStr('order'));
 
     return $saved;
   }
@@ -28,6 +29,14 @@ final class PhabricatorRepositorySearchEngine
       $query->withStatus($status);
     }
 
+    $order = $saved->getParameter('order');
+    $order = idx($this->getOrderValues(), $order);
+    if ($order) {
+      $query->setOrder($order);
+    } else {
+      $query->setOrder(head($this->getOrderValues()));
+    }
+
     return $query;
   }
 
@@ -48,7 +57,13 @@ final class PhabricatorRepositorySearchEngine
           ->setName('status')
           ->setLabel(pht('Status'))
           ->setValue($saved_query->getParameter('status'))
-          ->setOptions($this->getStatusOptions()));
+          ->setOptions($this->getStatusOptions()))
+      ->appendChild(
+        id(new AphrontFormSelectControl())
+          ->setName('order')
+          ->setLabel(pht('Order'))
+          ->setValue($saved_query->getParameter('order'))
+          ->setOptions($this->getOrderOptions()));
   }
 
   protected function getURI($path) {
@@ -95,4 +110,23 @@ final class PhabricatorRepositorySearchEngine
     );
   }
 
+  private function getOrderOptions() {
+    return array(
+      'committed' => pht('Most Recent Commit'),
+      'name' => pht('Name'),
+      'callsign' => pht('Callsign'),
+      'created' => pht('Date Created'),
+    );
+  }
+
+  private function getOrderValues() {
+    return array(
+      'committed' => PhabricatorRepositoryQuery::ORDER_COMMITTED,
+      'name' => PhabricatorRepositoryQuery::ORDER_NAME,
+      'callsign' => PhabricatorRepositoryQuery::ORDER_CALLSIGN,
+      'created' => PhabricatorRepositoryQuery::ORDER_CREATED,
+    );
+  }
+
+
 }