fix question update as teacher

app/graphql/mutations/create_question.rb

@@ -7,26 +7,26 @@ module Mutations
     argument :question, Inputs::QuestionCreateInput, required: true
 
     def resolve(question:)
-      question = question.to_h
-      reviewer_user_id = question.delete(:reviewer_user_id)
+      question_attributes = question.to_h
+      reviewer_user_id = question_attributes.delete(:reviewer_user_id)
 
-      record = Question.new(question)
-      record.user_id = context[:current_user].id
+      question = Question.new(question_attributes)
+      question.user_id = context[:current_user].id
 
-      policy = QuestionPolicy.new(context[:current_user], record)
+      policy = QuestionPolicy.new(context[:current_user], question)
 
       raise Pundit::NotAuthorizedError unless policy.create?
 
       ActiveRecord::Base.transaction do
-        record.save!
+        question.save!
 
-        if reviewer_user_id.present? && question[:status] != "draft"
-          record.review_requests.create!(user_id: reviewer_user_id)
+        if reviewer_user_id.present? && question_attributes[:status] != "draft"
+          question.review_requests.create!(user_id: reviewer_user_id)
         end
 
-        { question: record, errors: [] }
+        { question: question, errors: [] }
       rescue ActiveRecord::RecordInvalid
-        { question: nil, errors: record.errors.full_messages }
+        { question: nil, errors: question.errors.full_messages }
       end
     rescue Pundit::NotAuthorizedError => e
       { question: nil, errors: [e.message] }