def create_class(klass, client=None):
from models.orient_sql_utils import is_model
from models.orient_sql_utils import get_model_extensions
if not is_model(klass):
raise ValueError("Only OrientDB models can be used to create Orient classes")
if client is None:
client = get_connection()
class_name = get_orient_valid_class_name(klass)
create_str = 'CREATE CLASS %s' % class_name
parents = get_model_extensions(klass)
if len(parents) > 0:
if len(parents) > 1:
extenders = ",".join(parents)
else:
extenders = parents[0]
create_str = '%s EXTENDS %s' % (create_str, extenders)
instance = klass()
LOGGER.debug("creating class with command %s" % create_str)
client.command(create_str)
for k in instance._fields.keys():
if not instance._fields[k].inherited:
field_str = 'CREATE PROPERTY %s.%s %s' % (class_name,
instance._py_to_orient_field_mapping[k],
instance._fields[k].orientdb_type)
LOGGER.debug("applying property with command %s" % (field_str))
client.command(field_str)
def test_is_model(self):
self.assertFalse(is_model(Foo))
self.assertFalse(is_model(Foo()))
self.assertTrue(is_model(ImAModel))
self.assertTrue(is_model(ImAModel()))
self.assertTrue(is_model(IAMToo))
self.assertTrue(is_model(IAMToo()))
self.assertTrue(is_model(AndMeThree))
self.assertTrue(is_model(AndMeThree()))