Implement ApplicationSearch in Files

Summary: Ref T2625. Ref T1163. A couple of small generalization nudges, but this is almost entirely straightforward.

Test Plan: Executed various File queries.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T1163, T2625

Differential Revision: https://secure.phabricator.com/D6091

src/applications/files/query/PhabricatorFileQuery.php

@@ -8,6 +8,8 @@ final class PhabricatorFileQuery
   private $authorPHIDs;
   private $explicitUploads;
   private $transforms;
+  private $dateCreatedAfter;
+  private $dateCreatedBefore;
 
   public function withIDs(array $ids) {
     $this->ids = $ids;
@@ -24,6 +26,16 @@ final class PhabricatorFileQuery
     return $this;
   }
 
+  public function withDateCreatedBefore($date_created_before) {
+    $this->dateCreatedBefore = $date_created_before;
+    return $this;
+  }
+
+  public function withDateCreatedAfter($date_created_after) {
+    $this->dateCreatedAfter = $date_created_after;
+    return $this;
+  }
+
   /**
    * Select files which are transformations of some other file. For example,
    * you can use this query to find previously generated thumbnails of an image
@@ -156,6 +168,20 @@ final class PhabricatorFileQuery
       $where[] = qsprintf($conn_r, '(%Q)', implode(') OR (', $clauses));
     }
 
+    if ($this->dateCreatedAfter) {
+      $where[] = qsprintf(
+        $conn_r,
+        'f.dateCreated >= %d',
+        $this->dateCreatedAfter);
+    }
+
+    if ($this->dateCreatedBefore) {
+      $where[] = qsprintf(
+        $conn_r,
+        'f.dateCreated <= %d',
+        $this->dateCreatedBefore);
+    }
+
     return $this->formatWhereClause($where);
   }