Rendering from another controller with AJAX - ruby-on-rails

Question

I have query to the db, where I ask for specific entries. This is the controller:
def index
#contributions = Contribution.all
#number1 = params[:number1]
#number2 = params[:number2]
#itemsok = Contribution.where("first_item_id = ?",#number1).where("first_item_grade = ?",#number2)
respond_to do |format|
format.html # index.html.erb
format.json { render json: #contributions }
end
Ok and I have a form in the view wich allows me to pass data from the user input
<%= form_tag(contribution_path, :method => "get") do %>
<%= label_tag(:number1, "First Item Id") %>
<%= text_field_tag(:number1) %>
<%= label_tag(:number1, "First Item Grade") %>
<%= text_field_tag(:number2) %>
<%= submit_tag("Do it!" , :remote => true) %>
<% end %>
That works perfectly, but now I want to render this function from the main page index (display_controller, display index.html.erb). I gave all the properties to the display_controller like this:
class DisplayController < ApplicationController
def index
#items = Item.all
#contributions = Contribution.all
#number1 = params[:number1]
#number2 = params[:number2]
#itemsok = Contribution.where("first_item_id = ?",#number1).where("first_item_grade = ?",#number2)
respond_to do |format|
format.html # index.html.erb
format.json { render json: #contributions }
end
end
end
And I have the same form in the display view that is in the contributions view....
Right now what It does is that it redirects me to the contributions part, what I want t achive is to render the results in the display view...
Any thoughts? Thank you very much.
Sorry for my terrible english.
#
I got it
Got it the answer was to change in view the form to selected action
<%= form_tag(contribution_path, :method => "get") do %>
<%= label_tag(:number1, "First Item Id") %>
<%= text_field_tag(:number1) %>
<%= label_tag(:number1, "First Item Grade") %>
<%= text_field_tag(:number2) %>
<%= submit_tag("Do it!" , :remote => true) %>
<% end %>
Change it to
<%= form_tag(display_path, :method => "get") do %>
<%= label_tag(:number1, "First Item Id") %>
<%= text_field_tag(:number1) %>
<%= label_tag(:number1, "First Item Grade") %>
<%= text_field_tag(:number2) %>
<%= submit_tag("Do it!" , :remote => true) %>
<% end %>
In my case this was not working at the beginning but now I figured that it was because I have my display_path as the root_path so I changed it to...
<%= form_tag(root_path, :method => "get") do %>
<%= label_tag(:number1, "First Item Id") %>
<%= text_field_tag(:number1) %>
<%= label_tag(:number1, "First Item Grade") %>
<%= text_field_tag(:number2) %>
<%= submit_tag("Do it!" , :remote => true) %>
<% end %>
And now it works perfectly.
Can someone change this question to answered, I have like 21 of reputation and can't answer my own question. Tanks.

Answer 1

For better code quelity you should avoid repititions of code and make reusable, move that formm to a common partial view and use :url =>{:action => 'my_action'} in the form tag then you can use it any controller index view. While form action it will take the default controller from which it will be rendered.
share/_form.erb.html
<%= form_tag(:url =>{:action => 'my_action'}, :method => "get") do %>
<%= label_tag(:number1, "First Item Id") %>
<%= text_field_tag(:number1) %>
<%= label_tag(:number1, "First Item Grade") %>
<%= text_field_tag(:number2) %>
<%= submit_tag("Do it!" , :remote => true) %>
<% end %>
and in controller respective index view
index.erb.html
<%= render :partial 'share/form' %>
you can even declare variables for action and controller in your index method like
def index
// do something
#action = 'new_action'
#controller = 'new_controller'
// do some more thing
end
and then in form
:url =>{:controller => #controller, :action => #action}