[ORM] A way to customize mongodb exceptions

[LSafer]

It is way easier and more performant to depend on the MongoDB to perform the validation (like unique)

But it is not easy to catch those errors and re-throw them with custom messages

I am thinking of an Option to catch those errors and automatically handle them at the proper place using the error's pathname

fun ObjectSchemaBuilder.foo() {
  // idk the actual exception name
   catch<MongoDBUniquenessInvalidationError> { error ->
      if (error.pathname == this.pathname) {
          rethrow(RuntimeError( "foo uniqueness wasn't met" ))
      }
   }
}