def _ConvertFilter(self, expression):
"""Translates user-provided filter spec into one our backend understands.
Args:
expression: a filter spec to translate
Returns:
A tuple of string filter specs. The first is the frontend spec for post
filtering, the second is a spec that the Datastore Admin API understands.
"""
operation_rewrite_backend = rewrite_backend.OperationsRewriteBackend()
return operation_rewrite_backend.Rewrite(expression)
def _ConvertFilter(self, expression, args):
"""Translates user-provided filter spec into one our backend understands.
Args:
expression: a filter spec to translate
args: the args namespace object
Returns:
A tuple of string filter specs. The first is the frontend spec for post
filtering, the second is a spec that the Datastore Admin API understands.
"""
operation_rewrite_backend = rewrite_backend.OperationsRewriteBackend()
display_info = args.GetDisplayInfo()
defaults = resource_projection_spec.ProjectionSpec(
symbols=display_info.transforms, aliases=display_info.aliases)
return operation_rewrite_backend.Rewrite(expression, defaults=defaults)