remove choices from validate_required

"""
warning: attempting to determine the presence of embed_many field :choices with validate_required/3 ... which has no effect.
You can pass the :required option to Ecto.Changeset.cast_embed/3 to achieve this.
"""

Author: heyzec

lib/cadet/assessments/question_types/mcq_question.ex

@@ -20,7 +20,7 @@ defmodule Cadet.Assessments.QuestionTypes.MCQQuestion do
     |> cast(params, @required_fields)
     |> cast_embed(:choices, with: &MCQChoice.changeset/2, required: true)
     |> validate_one_correct_answer
-    |> validate_required(@required_fields ++ ~w(choices)a)
+    |> validate_required(@required_fields)
   end
 
   defp validate_one_correct_answer(changeset) do