[Findit] Datamodel change for triaging at CL level.

appengine/findit/model/base_suspected_cl.py

 # 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
 
 
-class WfSuspectedCL(ndb.Model):
-  """Represents suspected cl that causes failures on Chromium waterfall builds.
-
-  'Wf' is short for waterfall.
-  """
+class BaseSuspectedCL(ndb.Model):
+  """Represents base information about a suspected cl."""
 
   # Repo or project name of the suspected CL, eg: chromium, etc.
   repo_name = ndb.StringProperty(indexed=True)
 
   # The Git hash revision of the suspected CL.
   revision = ndb.StringProperty(indexed=False)
 
   # The commit position of the suspected CL.
   # Might not be available for some repo.
   commit_position = ndb.IntegerProperty(indexed=False)
 
-  # The list of builds in which the suspected CL caused some breakage.
-  builds = ndb.JsonProperty(indexed=False)
+  # Time when the CL was identified as a suspect for the first time.
+  identified_time = ndb.DateTimeProperty(indexed=False)
 
-  # Is the suspected CL the culprit or not.
-  is_culprit = ndb.BooleanProperty(indexed=True, default=None)
-
-  # From which approach do we get this suspected CL: HEURISTIC, TRY_JOB or BOTH.
-  approach = ndb.IntegerProperty(indexed=True)
-
-  # Failure type: failure_type.COMPILE or failure_type.TEST.
-  failure_type = ndb.IntegerProperty(indexed=True)
+  # Time when the CL was updated.
+  updated_time = ndb.DateTimeProperty(indexed=True)
 
   @property
   def project_name(self):
     return self.repo_name
 
   @classmethod
   def _CreateKey(cls, repo_name, revision):  # pragma: no cover
     return ndb.Key(cls.__name__, '%s/%s' % (repo_name, revision))
 
   @classmethod
   def Create(cls, repo_name, revision, commit_position):  # pragma: no cover
     instance = cls(key=cls._CreateKey(repo_name, revision))
     instance.repo_name = repo_name
     instance.revision = revision
     instance.commit_position = commit_position
-    instance.builds = []
     return instance
 
   @classmethod
   def Get(cls, repo_name, revision):  # pragma: no cover
-    return cls._CreateKey(repo_name, revision).get()
+    return cls._CreateKey(repo_name, revision).get()