[Findit] Adding support for triaging suspected builds from flake analysis

appengine/findit/model/base_triaged_model.py

Index: appengine/findit/model/base_triaged_model.py
diff --git a/appengine/findit/model/base_triaged_model.py b/appengine/findit/model/base_triaged_model.py
new file mode 100644
index 0000000000000000000000000000000000000000..ca008eada110ba8e57cda01315c88faccbc308d8
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+++ b/appengine/findit/model/base_triaged_model.py
@@ -0,0 +1,68 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+from google.appengine.ext import ndb
+
+from common import appengine_util
+from common import time_util
+from model import triage_status
+
+
+class TriageResult(ndb.Model):
+  # The user who updated this result.
+  user_name = ndb.StringProperty(default=None, indexed=False)
+
+  # The time this triage result was determined.
+  triaged_time = ndb.DateTimeProperty(indexed=False, auto_now=True)
+
+  # The result of the analysis as correct or not. If not triaged, the value
+  # should be None. Other traige result codes are up to the child class to set.
+  triage_result = ndb.IntegerProperty(default=None, indexed=True)
+
+  # The version of findit that generated this result. Should primarily be
+  # relevant for entities that are not versioned.
+  findit_version = ndb.StringProperty(default=None, indexed=False)
+
+  # The version number of the entity that is being triaged. Should primarily be
+  # relevant for versioned entites.
+  version_number = ndb.IntegerProperty(default=None, indexed=False)
+
+  # Other information about this result. For example, cl_info for suspected CLs
+  # which may contain repo/revision or the suspected range for a flake analysis.
+  suspect_info = ndb.JsonProperty(default=None, indexed=False)
+
+
+class TriagedModel(ndb.Model):
+  """The parent class for models that can have traige results."""
+
+  def UpdateTriageResult(self, triage_result, suspect_info, user_name,
+                         version_number=None):
+    result = TriageResult()
+    result.user_name = user_name
+    result.triage_result = triage_result
+    result.findit_version = appengine_util.GetCurrentVersion()
+    result.version_number = version_number
+    result.suspect_info = suspect_info
+    self.triage_history.append(result)
+
+  def GetTriageHistory(self):
+    # Gets the triage history of a triaged model as a list of dicts.
+    triage_history = []
+    for triage_record in self.triage_history:
+      triage_history.append({
+          'triaged_time': time_util.FormatDatetime(triage_record.triaged_time),
+          'user_name': triage_record.user_name,
+          'suspect_info': triage_record.suspect_info,
+          'triage_result': (
+              triage_status.TRIAGE_STATUS_TO_DESCRIPTION.get(
+                  triage_record.triage_result)),
+          'findit_version': triage_record.findit_version,
+          'version_number': triage_record.version_number
+      })
+
+    return triage_history
+
+  # Record the triage result history.
+  triage_history = ndb.LocalStructuredProperty(
+      TriageResult, repeated=True, indexed=False, compressed=True)