@classmethod
  def QueryComments(cls, client, viewpoint_id, callback, excl_start_key=None, limit=None):
    def _OnQueryComments(comments):
      callback((comments, comments[-1].comment_id if len(comments) > 0 else None))

    Comment.RangeQuery(client, viewpoint_id, range_desc=None, limit=limit, col_names=None,
                       callback=_OnQueryComments, excl_start_key=excl_start_key)
Testing GeometryField with a SRID set.
dataset/ETHPy150Open viewfinderco/viewfinder/backend/db/viewpoint.py/Viewpoint.QueryComments--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/Django-1.6.10/django/contrib/gis/tests/test_geoforms.py/GeometryFieldTest.test_srid