/// <summary> /// upsert edge and ensure to side is unique /// </summary> /// <typeparam name="TEdge"></typeparam> /// <typeparam name="TFrom"></typeparam> /// <typeparam name="TTo"></typeparam> /// <param name="arangoDatabase"></param> /// <param name="from"></param> /// <param name="to"></param> /// <param name="setter"></param> /// <returns></returns> public static TEdge UpsertEdgeUniqueTo <TEdge, TFrom, TTo>(this IArangoDatabase arangoDatabase, TFrom from, TTo to, Action <TEdge> setter = null) where TEdge : EdgeBase, new() where TFrom : VertexBase where TTo : VertexBase { TEdge edge = new TEdge(); edge._from = from.GetId(); edge._to = to.GetId(); edge.BuildIdWithFromTo(); setter?.Invoke(edge); arangoDatabase.UpsertEdgeUniqueTo(edge); return(edge); }