Why is my #results Quiz object nil? - ruby-on-rails

Question

I pass the following to the results/index.html.erb view:
def create
#results = Quiz.where(user_id: current_user.id)
redirect_to results_path
end
(I've changed the above action BACK to create).
Then, in my results/index.html.erb view:
<div class="container">
<!-- Example row of columns -->
<div class="row">
<h1>Results page</h1>
<div class="col-md-12">
<p>Eventually a user's results will appear here...</p>
<p><%= #results %></p>
<p><%= #results.inspect %></p>
<p><%= current_user.quiz %></p>
<h4>Quiz Answer</h4>
<p><%= #results.answer1 %></p>
<p><%= #results.answer2 %></p>
<p><%= #results.answer3 %></p>
<p><%= #results.answer4 %></p>
<p><%= #results.answer5 %></p>
<p><%= #results.answer6 %></p>
<p><%= #results.answer7 %></p>
<p><%= #results.answer8 %></p>
</div>
</div>
<footer>
<p><a class="btn btn-default" href="showmetheskills.html" role="button">next</a></p>
</footer>
</div> <!-- /container -->
(I know it's not 'best practise' to have numbered attributes on a Model; ignore that part.)
I get the error:
undefined method 'answer1' for nil:NilClass
Why is #results nil, when I set it IN THE ACTION Rails is asking for?
The Quiz is created in the QuizzesController:
def new
#user = current_user
#quiz = Quiz.create(user_id: current_user.id)
end
Which triggers quizzes/new.html.erb which renders the quiz partial.
What's the problem?

Answer 1

#results is nil because you've done a redirect. Either render the view
def update
#results = Quiz.where(user_id: current_user.id)
render: 'results#index'
end
Or do the redirect and get the results there which would be my preferred option, but I'd question why you're sending them to the update action without updating anything.
def update
redirect_to results_path
end
def ResultsController
def index
#results = Quiz.where(user_id: current_user.id)
end
end
Either way things like #results.answer1 won't work because you have an active record relation. You either need to loop
<% #results.each do |result| %>
<%= result.answer1 %>
<% end %>
Or grab the first result
#results = Quiz.where(user_id: current_user.id).first

Answer 2

In your case #results is an array and you call some answer1, answer2, answer3... methods(that are not defined yet I guess) on array that also does not exists.
Next:
You initialize #results in update action, but expect it to work in resuzlts/index.html.erb.
To show #results in index html you need to load this variable in index action.
Update
If you want your index action to show something, put this line:
#results = Quiz.where(user_id: current_user.id)
into index action
def index
# here
end
and remove answer1, answer2, answer3.... from index.html.erb, they really makes no sense.
Also, index.html.erb should look like this:
<div class="col-md-12">
<p><%= current_user.quiz %></p>
<h4>Quiz Answer</h4>
<% #results.each do |result| %>
<p><%= result.answer %></p>
<% end %>
</div>
this would work only if you have answer defined for result. Hard to say what is what in your app.