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 update(obj, client=None):
if client is None:
client = get_connection()
class_name = get_orient_valid_class_name(obj)
update_str = "UPDATE %s " % class_name
values = {}
for k in obj._fields.keys():
values[obj._py_to_orient_field_mapping[k]] = obj._fields[k].orient_value()
update_str = "%s CONTENT %s" % (update_str, json.dumps(values))
resp = client.command(update_str)
rec = resp[0]
return rec
def insert(obj, client=None):
if client is None:
client = get_connection()
class_name = get_orient_valid_class_name(obj)
insert_str = "INSERT INTO %s" % class_name
values = {}
for k in obj._fields.keys():
values[obj._py_to_orient_field_mapping[k]] = obj._fields[k].orient_value()
insert_str = "%s CONTENT %s" % (insert_str, json.dumps(values))
LOGGER.debug("executing insert command: %s" % insert_str)
resp = client.command(insert_str)
rec = resp[0]
obj.rid = rec._rid
return rec
def delete(rid, client=None):
if client is None:
client = get_connection()
return client.record_delete(rid)
def load(rid, client=None):
if client is None:
client = get_connection()
return client.record_load(rid)
def _setup_db(self):
settings = get_test_db_settings()
self.client = get_connection(orientdb_settings=settings)
self.db_name = settings['db_name']