Function UpdateEdgeProperty

src/graph/graph_hub.c:285–320

}

void UpdateEdgeProperty
(
	GraphContext *gc,             // graph context
	EdgeID id,                    // edge ID
	RelationID r_id,              // relation ID
	NodeID src_id,                // source node ID
	NodeID dest_id,               // destination node ID
	Attribute_ID attr_id,         // attribute ID
	SIValue v                     // new attribute value
) {
	Edge e; // edge to delete

	// get src node, dest node and edge from the graph
	int res;
	UNUSED(res);

	res = Graph_GetEdge(gc->g, id, &e);
	ASSERT(res != 0);

	// set edge relation, src and destination node
	Edge_SetSrcNodeID(&e, src_id);
	Edge_SetDestNodeID(&e, dest_id);
	Edge_SetRelationID(&e, r_id);

	if(attr_id == ATTRIBUTE_ID_ALL) {
		AttributeSet_Free(e.attributes);
	} else if(GraphEntity_GetProperty((GraphEntity *)&e, attr_id) == ATTRIBUTE_NOTFOUND) {
		AttributeSet_AddNoClone(e.attributes, &attr_id, &v, 1, true);
	} else {
		AttributeSet_UpdateNoClone(e.attributes, attr_id, v);
	}

	Schema *schema = GraphContext_GetSchemaByID(gc, r_id, SCHEMA_EDGE);
	ASSERT(schema != NULL);
	Schema_AddEdgeToIndices(schema, &e);
}

void UpdateNodeLabels
(