Question

I am watching on railscasts and tried to write the example with my own hands.
But I got an trouble with the step of: Creating The Form.

It requires creating association between Survey and Question.
But this association cannot be established in my rails application so no questions appear in the form

Here are the codes

Survey model:

class Survey < ActiveRecord::Base
  attr_accessible :name, :questions
  has_many :questions, :dependent => :destroy
  accepts_nested_attributes_for :questions

end

Question model:

class Question < ActiveRecord::Base
  attr_accessible :context, :survey_id
  belongs_to :survey
end

Surveys_Controller method:

  # GET /surveys/new
  # GET /surveys/new.json
  def new
    @survey = Survey.new
    3.times {@survey.questions.build}


    respond_to do |format|
      format.html # new.html.erb
      format.json { render json: @survey }
    end
  end

question part in _form.html.erb

  <% f.fields_for :questions do |builder|%>
    <%= builder.label :context, "Question" %><br />
    <%= builder.text_area :context, :rows => 3 %>
  <% end %>

Here is what I got from testing in console

irb(main):010:0> @survey = Survey.new
=> #<Survey id: nil, name: nil, created_at: nil, updated_at: nil>
irb(main):011:0> 3.times {@survey.questions.build}
=> 3
irb(main):012:0> @survey.questions
=> [#<Question id: nil, survey_id: nil, context: nil, created_at: nil, updated_a
t: nil>, #<Question id: nil, survey_id: nil, context: nil, created_at: nil, upda
ted_at: nil>, #<Question id: nil, survey_id: nil, context: nil, created_at: nil,
 updated_at: nil>]

Answer 1

haha, i am being stupid.
It is a dumb question.
It doesn’t matter about the association.

I made a typing mistake on

<% f.fields_for :questions do |builder|%>

it should return some texts inserting into HTML document rather than just processing as ruby code

it should be <%= f.fields_for :questions do |builder|%>

But thank you all of your answers 🙂