Build answer with opposite attribute of first answer - ruby-on-rails

Question

My form creates a question and answers. For true and false I currently have one answer being submitted that is the correct answer. I am trying to figure out how to make another answer with the same attributes except have the opposite value, either True or False.
Since the answers are created with the question I'm not sure what to do. I was thinking of the controller having something like, #question.answers.build(question: params[:content]) but am lost. Is there a #question.answers.build.where(content: (#question.content.opposite)) or something? Any help aprreciated
The controller:
def new_tf
#question = Question.new
#question.answers.build
end
def create
#question = Question.new(question_params)
respond_to do |format|
if #question.save
format.html { redirect_to #question, notice: 'Question was successfully created.' }
format.json { render action: 'show', status: :created, location: #question }
else
format.html { render action: 'new' }
format.json { render json: #question.errors, status: :unprocessable_entity }
end
end
end
def question_params
params.require(:question).permit(:content, :question_type, :category, :product_id, :active, :user_id, answers_attributes: [ :content, :correct, :question_id ] ).
merge user_id: current_user.id
end
The form:
<h1>New True/False Question</h1>
<%= link_to 'Back', questions_path %>
<%= form_for #question, url: new_tf_question_path(#question) do |f| %>
<%= render 'shared/error_questions' %>
<%= f.label :content, "Question" %><br>
<%= f.text_field :content, class: "input-lg" %>
<%= f.label :category %><br>
<%= f.select :category, [ ["IP Voice Telephony", "ip_voice"], ["IP Video Surveillance", "ip_video_surveillance"], ["IP Video Telephony", "ip_video_telephony"], ["Enterprise Gateways", "enterprise_gateways"], ["Consumer ATAs", "consumer_atas"], ["IP PBX", "ip_pbx"] ], {prompt: "Select Category"}, class: "input-lg" %>
<%= f.label :product_id %><br>
<%= f.collection_select :product_id, Product.all, :id, :name, {prompt: "Select a product"}, {class: "form-control input-lg"} %>
<%= f.label :active %><br>
<%= f.check_box :active %>
<%= f.fields_for :answers do |builder| %>
<%= render 'tf_answers', :f => builder %>
<% end %>
<%= f.select :question_type, [["True False", "TF"]], {class: "form-control input-lg"}, style: "visibility: hidden" %>
<%= f.submit "Create Question", class: "btn btn-lg btn-primary", style: "margin-top: 45px;" %>
<% end %>
The _tf_answers.erb.rb
<%= f.check_box :correct, {checked: true, style: "visibility: hidden"} %>
<%= f.label :content, "Answer" %>
<%= f.text_field :content, :value => 'True', :readonly => true, :class => "input-lg", :id => "answer" %>
<%= button_tag "Toggle True/False", :id => "toggle", :class => "btn btn-small btn-inverse", :type => "button" %>
<script>
function checkAnswer() {
var answer = $('#answer').val();
if ('False' == answer) {
$("#answer").val('True');
} else {
$("#answer").val('False');
}
}
$(document).ready(function(){
$('#toggle').click(function () {
checkAnswer();
});
});
</script>

Answer 1

I ended up creating a new answer after the first one saved.
if #question.save
#answer = Answer.find_by_question_id(#question.id)
if #answer.content == "True"
Answer.create(content: "False", question_id: #answer.question_id, correct: false)
end
if #answer.content == "False"
Answer.create(content: "True", question_id: #answer.question_id, correct: false)
end
Ta-da!

Answer 2

Why doesn't your model automatically create both answers? Extend the save method in your model and you won't have to have this logic in your controller. It probably belongs there anyway.