payloadcms
feat: better select type
What?
Add type support for return value when select is used. Instead of returning the string | Relation in to-one relations and (string | Relation)[] not proper type is returned - Relation or Relation[] for cases when the relation is explicitly selected.
NOTE1: string can be replaced with number, depends on the IDs you use in your app NOTE2: Relation is a collection type
Why?
Because it is frustrating working with union types when you know that in runtime you will have this typing
How?
I have expanded TransformDataWithSelect type.
Type checking is done using a type utils Equal that resolves to true if types are same and false otherwise. We type a variable with this and assign true to a variable. If type resolves to false you get an error.
Should I add type checks in every test case?
Future works?
- We should add same support for
depth. - Add support for nested selects?
