UnknownFormat Error When Doing an AJAX Search - ruby-on-rails

Question

I wish to have a little search box, which will allow the user to search other users by name, with the results showing in the box in a sort of list. Much like how, on a site like amazon, you can type a search into the bar and it will have a dropdown, except on mine I am not doing "autocomplete" (at least not yet)
At the moment, however, when I try to search, it says "ActionController::UnknownFormat in ChatRoomsController#search_users", with an explanation:
ChatRoomsController#search_users is missing a template for this request
format and variant. request.formats: ["text/html"] request.variant: []
NOTE! For XHR/Ajax or API requests, this action would normally respond
with 204 No Content: an empty white screen. Since you're loading it in a
web browser, we assume that you expected to actually render a template,
not nothing, so we're showing an error to be extra-clear. If you expect
204 No Content, carry on. That's what you'll get from an XHR or API
request. Give it a shot.
So it seems to be saying that this isn't an AJAX request, but I have have pretty much copied my code from the RailsCast on AJAX searching (just removed some pagination bits), so this confuses me.
Here are the relevant parts of my code:
# chat_rooms/show.html.erb
<%= form_tag search_path, :id => "search", :method => 'get' do %>
<%= text_field_tag :search, params[:search] %>
<%= submit_tag "Search for User", :name => nil, class: "button-butt" %>
<% end %>
<% for result in #users_results %>
<%= result.name %>
<% end %>
and the controller:
# chat_rooms_controller.rb
def search_users
#users_results = User.search(params[:search])
end
the model's search method:
# user.rb
def self.search(term)
where('name LIKE ?', "%#{term}%")
end
I think my routing is OK, but just in case it isn't:
# routes.rb
get '/search_users', to: 'chat_rooms#search_users', as: 'search'
and finally, the javascript:
#application.js
//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require_tree .
$("#search input").keyup(function() {
$.get($("#search").attr("action"), $("#search").serialize(), null, "script");
return false;
});
Any help would be appreciated.

Answer 1

# routes.rb
get '/search_users', to: 'chat_rooms#search_users', as: 'search'
Since your routes.rb specifies that you will have a search_users action in ChatRoomsController and it(action) seems to be present.
When request arrived from the form, it landed on that action but, since the template named search_users.html.erb is missing, its displaying this error.
Solution
Either handle the request and respond with a template mentioned in the error message; or, rename and redesign the routes and controller.
Edit: 1
I just want to send the search request, and have the results pop into the list below the searchbar if you see what I mean.
If so, do following:
# chat_rooms_controller.rb
def search_users
#users_results = User.search(params[:search])
render :show
end
Plz comment, if its not helping.