Multiple types for an attribute with params.expect

rubyonrails-talk
1

Previously I’ve been using this to say that I expect value to be either a scalar, an array of values, or a hash:

def submission_params
  params.require(:submission).permit(
    results_attributes: [ :element_id, :value, { value: [] }, { value: {} } ]
  )
end

It’s a form builder and for legacy reasons the value can be any of those types since it could be a simple text field, or at its most complicated, a date field for example.

I can’t seem to find a way to make this work with params.expect. Just wondering if anyone else has found a way?

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