Cleaned up and completed current dashboard milestone.

Left to do:
- Directory reorganization.

BUG=
TEST=

Review URL: https://webrtc-codereview.appspot.com/384003

git-svn-id: http://webrtc.googlecode.com/svn/trunk@1605 4adac7df-926f-26a2-2b94-8c16560cd09d

tools/quality_tracking/dashboard/load_coverage.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python
+#-*- coding: utf-8 -*-
+#  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
+#
+#  Use of this source code is governed by a BSD-style license
+#  that can be found in the LICENSE file in the root of the source
+#  tree. An additional intellectual property rights grant can be found
+#  in the file PATENTS.  All contributing project authors may
+#  be found in the AUTHORS file in the root of the source tree.
+
+"""Loads coverage data from the database."""
+
+__author__ = 'phoglund@webrtc.org (Patrik Höglund)'
+
+from google.appengine.ext import db
+import gviz_api
+
+
+class CoverageDataLoader:
+  """ Loads coverage data from the database."""
+
+  def load_coverage_json_data(self):
+    coverage_entries = db.GqlQuery('SELECT * '
+                                   'FROM CoverageData '
+                                   'ORDER BY date ASC')
+    data = []
+    for coverage_entry in coverage_entries:
+      data.append({'date': coverage_entry.date,
+                   'line_coverage': coverage_entry.line_coverage,
+                   'function_coverage': coverage_entry.function_coverage,
+                  })
+
+    description = {
+        'date': ('datetime', 'Date'),
+        'line_coverage': ('number', 'Line Coverage'),
+        'function_coverage': ('number', 'Function Coverage')
+    }
+    coverage_data = gviz_api.DataTable(description, data)
+    return coverage_data.ToJSon(order_by='date')