Form processor with type specs doesn't coerce int arrays inside hashes

[Morozzzko]

If you use Dry::Validation:Form with type_specs = true and arrays inside hashes (see example below), it won't coerce the values inside the array and fail instead.

        Dry::Validation.Form do
          configure do
            config.type_specs = true
          end

          required(:foo).schema do
            required(:bar, :array).each(:int?)
          end
        end

There are two workarounds I have found:

1. Don't use the type_specs (duh) (probably not a good solution)
2. Define a type similar to IntArray = Dry::Types['form.array'].of(Dry::Types['coercible.int']) and use it in the validation block (required(:bar, IntArray).each(:int?))

This seems like a bug, so I'm opening this issue

UPD: wrote some tests to demonstrate both the problem and the 2nd solution workaround

[flash-gordon]

It's not obvious how it should work in dry-schema

required(:bar).value(:array).each(Types::Params::Integer, :int?)

throws an error

[flash-gordon]

probably related to #424 and #291

[solnic]

@flash-gordon re your example, please report an issue in dry-schema, and here's what should work:

required(:bar).value(array[:integer]).each(:int?)

[flash-gordon]

ref dry-rb/dry-schema#21