Extra links popping up at bottom of page?

Question

I have answers associated with questions, but after creating a new question, it should have 0 answers.

In this chunk of code

<% @question.answers.each do |ans| %>

    <div class="container">
        <div class="row-fluid">
        </p>

        <p>
            <%= ans.answer %>
        </p>

        <h5><em>
            <%= ans.commenter %> posted 
            <%= link_to "Answer comments", [@question,ans] %>

        </em></h5>

    </div>
</div>
<% end %>

Even after newly creating a question, a non-existent answer without an answer field appears on the view, and there's a link to question/1/answers (obviously answers isn't a valid path). Is there a reason for this?

Looks like the problem would be more likely be found in the controller. Could you post that code too? — thorsten müller, Feb 23 '14 at 08:26

score 2 · Accepted Answer · answered Feb 23 '14 at 10:22

You create some answers instances after creating the question I suppose. It may be the question_controller code or models/question.rb code. You can analyze the code and find the issue over there.

The simple workaround is to add condition

<% if @question.answers.empty? %>
  <p>No answers yet.</p>
<% else %>
  <% @question.answers.each do |ans| %>
  ...
<% end %>

score 1 · Answer 2 · edited May 23 '17 at 10:26

.build

This problem will likely be caused by the saving of an answer each time you create a question

I'd imagine you're doing something like this:

#app/controllers/questions_controller.rb
def new
    @question = Question.new
    @question.answers.build
end

def create
    @question = Question.new(question_params)
    @question.save
end 

private

def question_params
    params.require(:question).permit(answers_attributes: [])
end

Each time you build an associative object, you're basically creating an entry in the database, which will be associated to the parent object

Extra links popping up at bottom of page?

2 Answers2