Add data to table through another

First of all: I have 4 tables:

1) respondents with id and email.

2) inquires with id, question_id, respondent_id

3) question_id with id and text

4) answers with inquiry_id, text

What i want? I want to do next: in my view I have question and text_field and button. If user something answer on question and press button, this data inserts into answer table.

my_controller (asnwer_controller)

  def create
    if request.post?
      Answer.create(:inquiry_id=>@inquiry.id.to_s, :text=>params开发者_开发技巧[:text])
    end
  end

my_view

<% form_for :answer, :url => { :controller => 'answer', :action => 'create' } do |f| %>
    <%= @questions.id %>. <%= @questions.text %><br />
    <%= f.text_area :text, :rols => 10, :cols => 60 %><br />
    <%= submit_tag "Send Survey ", :class => "inputBox" %>
<% end %>

I through i something missed in view & controller. Data not pasting now. Please help!

---

If i understand the question, you want to add data through an intermediate table. So, if a user has many posts, you want to add a post to a user, right ? If user has many posts and you create a new post, you can do it like :

current_user.posts.create(...)

or

current_user.posts << post

Hope that is what you are looking for. If not, please specify a bit more clearly.