private Create(TypeExpr token, GraphClass graphClass, OrientSqlExpr @from, OrientSqlExpr @to, OrientSqlExpr set)
{
_token = token;
_graphClass = graphClass;
_from = @from;
_to = to;
_set = set;
}
public CreateEdgeMutation(T edge, V @from, V to, List <IGraphMutation> mutations, IdentifierFactory factory) : this(edge, factory)
{
var f = mutations.FirstOrDefault(p => p.GraphItem == @from)?.Identifier;
var t = mutations.FirstOrDefault(p => p.GraphItem == to)?.Identifier;
_query = (@from?.Rid, to?.Rid, f, t) switch
{
(string fromV, string toV, _, _) =>
new Let(
new Create(new Edge(), new GraphClass(Item.GetType()), new From(new Rid(fromV)), new To(new Rid(toV)), GetSetter()), Identifier),
(null, string toV, Identifier fV, _) =>
new Let(
new Create(new Edge(), new GraphClass(Item.GetType()), new From(fV), new To(new Rid(toV)), GetSetter()), Identifier),
(string fromV, null, _, Identifier tV) =>
new Let(
new Create(new Edge(), new GraphClass(Item.GetType()), new From(new Rid(fromV)), new To(tV), GetSetter()), Identifier),
(null, null, Identifier fV, Identifier tV) =>
new Let(
new Create(new Edge(), new GraphClass(Item.GetType()), new From(fV), new To(tV), GetSetter()), Identifier),
_ => throw new InvalidOperationException()
}
;
}
private Let(Identifier identifier, OrientSqlExpr expr)
{
_identifier = identifier;
_expr = expr;
}
private To(OrientSqlExpr expr)
{
_expr = expr;
}