Is it possible to transform `Column<EntityId<T>>` to `ExpressionWithColumnType<T>`...

# exposed

[Gustav Elmgren]

Is it possible to transform Column<EntityId<T>> to ExpressionWithColumnType<T> in some way?

[Gustav Elmgren]

For example, using

Entity.id.castTo(LongColumnType()

Would that be stupid?

[Gustav Elmgren]

The main reason is that I have a method that accepts ExpressionWithColumnType<T>, and it wont accept the id, but any other parameter. And it works if I use castTo. But it seems a bit overkill to actually cast (in the generated SQL) it just so the typing works.

[Emil Kantis]

can you change the method?

[Gustav Elmgren]

Yeah, I should be able to do that.

[Emil Kantis]

fun <T> method(expr: ExpressionWithColumnType<T>) -> fun <T, S : ExpressionWithColumnType<T>> method(expr: S) should do the trick, no?

[Emil Kantis]

since Column<T> extends ExpressionWithColumnType<T>

[Gustav Elmgren]

I think I tried that, but I might have done it completely wrong.

Type mismatch.
Required:
ExpressionWithColumnType<Long>
Found:
Column<EntityID<Long>>

[Gustav Elmgren]

Nvm, it must be my implementation that does something strange. It accepted it when I tried your snippet.

[Gustav Elmgren]

Oh. The problem is probably because I have <T : Comparable<T>, K : ExpressionWithColumnType<in T>>, and T is a simple Long. I guess I could transform it by using EntityId()

[Gustav Elmgren]

Yeah, it all works when I created the related EntityId. Thanks!