datastore_types.py 文件源码

def PropertyTypeName(value):
  """Returns the name of the type of the given property value, as a string.

  Raises BadValueError if the value is not a valid property type.

  Args:
    value: any valid property value

  Returns:
    string
  """
  if value.__class__ in _PROPERTY_MEANINGS:
    meaning = _PROPERTY_MEANINGS[value.__class__]
    name = entity_pb.Property._Meaning_NAMES[meaning]
    return name.lower().replace('_', ':')
  elif isinstance(value, basestring):
    return 'string'
  elif isinstance(value, users.User):
    return 'user'
  elif isinstance(value, long):
    return 'int'
  elif value is None:
    return 'null'
  else:
    return typename(value).lower()