pyorient

问题 I am trying to understand how to use the LUCENE Spatial queries in Orientdb 2.2.17 using pyorient. I have note yet figure it out how to select all the properties of a point vertex class that is within a polygon vertex from another class. Region Vertex Class has two properties: name coordinates (EMBEDDED OPolygon) LUCENE index CREATE CLASS Region EXTENDS V CREATE PROPERTY Region.name IF NOT EXISTS STRING CREATE PROPERTY Region.coordinates IF NOT EXISTS EMBEDDED OPolygon CREATE INDEX Region

问题 I am trying to understand how to use the LUCENE Spatial queries in Orientdb 2.2.17 using pyorient. I have note yet figure it out how to select all the properties of a point vertex class that is within a polygon vertex from another class. Region Vertex Class has two properties: name coordinates (EMBEDDED OPolygon) LUCENE index CREATE CLASS Region EXTENDS V CREATE PROPERTY Region.name IF NOT EXISTS STRING CREATE PROPERTY Region.coordinates IF NOT EXISTS EMBEDDED OPolygon CREATE INDEX Region

问题 I don't know how to create a method to delete edges in django rest framework, using orientdb OGM. I'm using pyorient==1.5.5 and OrientDB 3.0.18 version. I have two vertex Classes: ousers, ocompany. Also I have two relationships (edges) Classes: ofriends, oworksat. So for example: To make a ofriends relationship I need two ousers. And to make a oworksat relationship I need one ouser and one ocompany. Every relationship has it own cluster id. I know that I can access to these functions: (Pdb)

问题 I'm trying to create classes with pyorient driver but sometime if class exists I got class exists message. Is there a way to check whether class is exists or not in OrientDB python driver? Here is part of my sample code for class creation... @classmethod def create(cls): cls._cluster_id = OrientEngine.client.command("CREATE CLASS %s EXTENDS V" % cls.__name__) return cls._cluster_id 回答1: Via SQL to check the existence of "OUser" class execute this: SELECT FROM ( SELECT expand( classes ) FROM