Description

I would like to suggest passing the request object to the expression evaluation of the EntityValueResolver. This would make it possible to use parameters of the request body which is useful in REST APIs.

In the resolver we only need to change the following line in the findViaExpression method:

-         $variables = array_merge($request->attributes->all(), ['repository' => $repository]);
+         $variables = array_merge($request->attributes->all(), [
+             'repository' => $repository,
+             'request' => $request,
+         ]); 

Example

Now, one could use the expression like this:

public function createAction(
    #[MapEntity(expr: 'repository.find(request.toArray()["userId"])')]
    User $user,
) {}

What do you think?