diff --git a/app/assets/javascripts/application.js b/app/assets/javascripts/application.js
index 088209b..dfff169 100644
--- a/app/assets/javascripts/application.js
+++ b/app/assets/javascripts/application.js
@@ -18,143 +18,3 @@
 //= require turbolinks
 //= require_tree .
 //= require jquery_nested_form
-
-
-(function($) {
-  "use strict"; // Start of use strict
-
-  // Floating label headings for the contact form
-  $("body").on("input propertychange", ".floating-label-form-group", function(e) {
-    $(this).toggleClass("floating-label-form-group-with-value", !!$(e.target).val());
-  }).on("focus", ".floating-label-form-group", function() {
-    $(this).addClass("floating-label-form-group-with-focus");
-  }).on("blur", ".floating-label-form-group", function() {
-    $(this).removeClass("floating-label-form-group-with-focus");
-  });
-
-  // Show the navbar when the page is scrolled up
-  var MQL = 992;
-
-  //primary navigation slide-in effect
-  if ($(window).width() > MQL) {
-    var headerHeight = $('#mainNav').height();
-    $(window).on('scroll', {
-        previousTop: 0
-      },
-      function() {
-        var currentTop = $(window).scrollTop();
-        //check if user is scrolling up
-        if (currentTop < this.previousTop) {
-          //if scrolling up...
-          if (currentTop > 0 && $('#mainNav').hasClass('is-fixed')) {
-            $('#mainNav').addClass('is-visible');
-          } else {
-            $('#mainNav').removeClass('is-visible is-fixed');
-          }
-        } else if (currentTop > this.previousTop) {
-          //if scrolling down...
-          $('#mainNav').removeClass('is-visible');
-          if (currentTop > headerHeight && !$('#mainNav').hasClass('is-fixed')) $('#mainNav').addClass('is-fixed');
-        }
-        this.previousTop = currentTop;
-      });
-  }
-
-})(jQuery); // End of use strict
-
-$('.remove-posts_category:first').hide();
-
-function reorderPostsCategories() {
-  $('#posts_categories-form h4.subsection.new-posts_categories span:visible').each(function(index) {
-    $(this).html(index + 1);
-  });
-};
-
-$(document).on('nested:fieldAdded nested:fieldRemoved', function(event){
-  reorderPostsCategories();
-});
-
-//Rating
-var $stars;
-
-jQuery(document).ready(function ($) {
-
-  // Custom whitelist to allow for using HTML tags in popover content
-  var myDefaultWhiteList = $.fn.tooltip.Constructor.Default.whiteList
-  myDefaultWhiteList.textarea = [];
-  myDefaultWhiteList.button = [];
-
-  $stars = $('.rate-popover');
-  
-  const currentPost = $('#current_post');
-  const postId = currentPost.data('id');
-  let exists_rank = false;
-  let response_request;
-  let rank_id;
-  let new_rank;
-
-  $stars.on('mouseover', function () {
-    var index = $(this).attr('data-index');
-    markStarsAsActive(index);
-  });
-
-  function markStarsAsActive(index) {
-    unmarkActive();
-    for (var i = 0; i <= index; i++) {
-      $($stars.get(i)).addClass('amber-text');
-    }
-  }
-
-  function unmarkActive() {
-    $stars.removeClass('amber-text');
-  }
-
-  $stars.on('click', function () {
-    new_rank = $(this).attr('data-index');
-    $stars.popover('hide');
-  });
-
-  // Submit, you can add some extra custom code here
-  // ex. to send the information to the server
-  $('#rateMe').on('click', '#voteSubmitButton', function () {
-    $stars.popover('hide');
-    let url_request = "/rankings"
-    if (exists_rank) {
-      url_request += ("/"+rank_id);
-
-      $.ajax({
-          type: 'PATCH',
-          url: url_request,
-          data: JSON.stringify ({id: rank_id,ranking:{post_id:postId, rank: new_rank},commit:"Update Ranking"}),
-          success: function(data) {/* alert('data: ' + data);*/ },
-          contentType: "application/json",
-          dataType: 'json'
-      });
-    } else {
-      $.ajax({
-        type: 'POST',
-        url: url_request,
-        data: JSON.stringify ({ranking:{post_id:postId, rank: new_rank},commit:"Create Ranking"}),
-        success: function(data) { /*alert('data: ' + data); */},
-        contentType: "application/json",
-        dataType: 'json'
-    });
-    }   
-  });
- 
-  // Cancel, just close the popover
-  $('#rateMe').on('click', '#closePopoverButton', function () {
-    $stars.popover('hide');
-  });
-
-});
-
-$(function () {
-  $('.rate-popover').popover({
-    // Append popover to #rateMe to allow handling form inside the popover
-    container: '#rateMe',
-    // Custom content for popover
-    content: `<div class="my-0 py-0"><button id="voteSubmitButton" type="submit" class="btn btn-sm btn-primary">Submit!</button> <button id="closePopoverButton" class="btn btn-flat btn-sm">Close</button>  </div>`
-  });
-  $('.rate-popover').tooltip();
-});
\ No newline at end of file
diff --git a/app/assets/javascripts/posts.js.coffee b/app/assets/javascripts/posts.js.coffee
new file mode 100644
index 0000000..41e4b2c
--- /dev/null
+++ b/app/assets/javascripts/posts.js.coffee
@@ -0,0 +1,44 @@
+jQuery -> 
+  "use strict"
+  # Floating label headings for the contact form
+  $( "body" ).on("input propertychange", ".floating-label-form-group", (e) ->
+    $(@).toggleClass "floating-label-form-group-with-value", !!$(e.target).val()
+  ).on("focus", ".floating-label-form-group", ->
+    $(@).addClass "floating-label-form-group-with-focus"
+  ).on("blur", ".floating-label-form-group", ->
+    $(@).removeClass "floating-label-form-group-with-focus"
+  )
+
+  minimunScreenSize = 992
+  
+  #primary navigation slide-in effect
+  if $(window).width() > minimunScreenSize
+    headerHeight = $('#mainNav').height()
+    $(window).on('scroll', 
+      previousTop: 0,
+      ->
+        currentTop = $(window).scrollTop()
+        #check if user is scrolling up
+        if (currentTop < @.previousTop)
+          #if scrolling up...
+          if currentTop > 0 && $('#mainNav').hasClass('is-fixed')
+            $('#mainNav').addClass('is-visible')
+          else
+            $('#mainNav').removeClass('is-visible is-fixed')
+        else if currentTop > @.previousTop
+          #if scrolling down...
+          $('#mainNav').removeClass('is-visible')
+          $('#mainNav').addClass('is-fixed') if (currentTop > headerHeight && !$('#mainNav').hasClass('is-fixed'))
+        @.previousTop = currentTop
+      )
+
+$('.remove-posts_category:first').hide()
+
+reorderPostsCategories = ->
+  $('#posts_categories-form h4.subsection.new-posts_categories span:visible').each((index) ->
+    $(@).html(index + 1)
+  )
+
+$(document).on('nested:fieldAdded nested:fieldRemoved', (event) ->
+  reorderPostsCategories()
+)
\ No newline at end of file
diff --git a/app/assets/javascripts/rankings.js.coffee b/app/assets/javascripts/rankings.js.coffee
new file mode 100644
index 0000000..b2e79f6
--- /dev/null
+++ b/app/assets/javascripts/rankings.js.coffee
@@ -0,0 +1,44 @@
+
+$(document).on "turbolinks:load", ->
+  return unless $("body").data("controller") == "posts" && $("body").data("action") == "show"
+
+  $stars = $('.rate-popover')
+
+  new_rank = 0
+  currentElement = $('#current_post')
+  postId = currentElement.attr "data-post"
+  userId = currentElement.attr "data-user"
+  
+  $stars.on('mouseover', ->
+    index = $(@).attr('data-index')
+    markStarsAsActive(index)
+  )
+
+  markStarsAsActive = (index) -> 
+    unmarkActive()
+    i = 0
+    while i <= index
+      $($stars.get(i)).addClass('amber-text')
+      i++
+
+  unmarkActive = ->
+    $stars.removeClass('amber-text')
+
+  $stars.on('click', ->
+    new_rank = $(@).attr('data-index')
+    url_request = "/rankings"
+
+    $.ajax(
+        type: 'POST',
+        url: url_request,
+        data: JSON.stringify (
+          post_id: postId
+          user_id: userId
+          rank: new_rank,
+          commit: "Change Ranking"
+        )
+        success: (data) ->
+        contentType: "application/json"
+        dataType: 'json'
+    )
+  )
\ No newline at end of file
diff --git a/app/controllers/rankings_controller.rb b/app/controllers/rankings_controller.rb
index 2727824..a29dc40 100644
--- a/app/controllers/rankings_controller.rb
+++ b/app/controllers/rankings_controller.rb
@@ -3,60 +3,44 @@
 class RankingsController < ApplicationController
 
   access all: :all
-  before_action :set_ranking, only: %i[update destroy]
-  before_action :set_index_type, only: :index
+  before_action :set_ranking_match_by_search, only: :create
 
   def index
-    if @index_type
-      @rankings = Ranking.where(post_id: @post_id, user_id: current_user.id)
-    else
-      @posts = Post.all.sort_by(&:ranking_value).reverse
-      @rankings = Ranking.all
-    end
+    @posts = Post.all.sort_by(&:ranking_value).reverse
   end
 
   def create
-    @ranking = current_user.rankings.new(ranking_params)
-
-    respond_to do |format|
-      if @ranking.save
-        format.html { redirect_to @ranking, notice: "Ranking was successfully created." }
-        format.json { render json: @ranking, status: :created }
-      else
-        format.html { render json: @ranking.errors, status: :unprocessable_entity }
-      end
-    end
+    ranking_exists ? update_ranking : create_ranking
   end
 
-  def update
-    respond_to do |format|
-      if @ranking.update(ranking_params)
-        format.html { redirect_to @ranking, notice: "Ranking was successfully updated" }
-      else
-        format.html { render :edit }
-      end
-    end
-  end
+  private
 
-  def destroy
-    respond_to do |format|
-      format.html { redirect_to rankings_path, notice: "Ranking was successfully deleted" } if @ranking.destroy
-    end
+  def json_render(message, status)
+    render json: message, status: status
   end
 
-  private
+  def create_ranking
+    @ranking = Ranking.new(ranking_params)
 
-  def set_ranking
-    @ranking = Ranking.find(params[:id])
+    @ranking.save ? json_render(@ranking, :created) : json_render(@ranking.errors, :unprocessable_entity)
   end
 
-  def set_index_type
-    @index_type = params["index_type"]
-    @post_id = params["post_id"]
+  def ranking_exists
+    @ranking_match&.count&.positive?
   end
 
   def ranking_params
     params.require(:ranking).permit(:rank, :index_type, :user_id, :post_id)
   end
 
+  def set_ranking_match_by_search
+    @ranking_match = Ranking.where(user_id: params[:user_id], post_id: params[:post_id])
+  end
+
+  def update_ranking
+    @ranking = @ranking_match.first
+
+    @ranking.update(ranking_params) ? json_render(@ranking, :ok) : json_render(@ranking.errors, :unprocessable_entity)
+  end
+
 end
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index be027aa..4277b8d 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -36,12 +36,7 @@ def client_li_tags
 
   def admin_li_tags
     concat li_tag_path "Home", root_path, :get
-    concat li_tag_path "Users", users_path, :get
-    concat li_tag_path "Posts", posts_path, :get
-    concat li_tag_path "Categories", categories_path, :get
-    concat li_tag_path "PostsCategories", posts_categories_path, :get
-    concat li_tag_path "Comments", comments_path, :get
-    concat li_tag_path "Rankings", rankings_path, :get
+    concat li_tag_path "Ranking", rankings_path, :get
     concat li_tag_path "Logout", destroy_user_session_path, :delete
   end
 
@@ -59,13 +54,13 @@ def user_create_post
     (link_to "Create post", new_post_path, class: "btn btn-primary") + content_tag(:hr) if current_user
   end
 
-  def set_post_ranking
+  def add_start_by_post_ranking(user_ranking)
     star_titles = ["Very bad", "Poor", "Ok", "Good", "Excellent"]
     star_class = ""
     number_stars = 5
     content_tag(:span, id: "rateMe") do
       number_stars.times do |n|
-        star_class = n <= @user_ranking ? "amber-text" : ""
+        star_class = n <= user_ranking ? "amber-text" : ""
         concat li_for_ranking n, star_titles[n], star_class
       end
     end
diff --git a/app/views/layouts/application.html.erb b/app/views/layouts/application.html.erb
index f28e6a1..053c64e 100644
--- a/app/views/layouts/application.html.erb
+++ b/app/views/layouts/application.html.erb
@@ -17,7 +17,7 @@
 
   </head>
 
-  <body>
+  <%= content_tag :body, data: {action: action_name, controller: controller_name} do %>
 
     <%= render "shared/nav" %>
 
@@ -26,5 +26,5 @@
     <div class="container">
       <%= yield %>
     </div>
-  </body>
+  <% end %>
 </html>
diff --git a/app/views/posts/show.html.erb b/app/views/posts/show.html.erb
index 8e643bd..400899c 100644
--- a/app/views/posts/show.html.erb
+++ b/app/views/posts/show.html.erb
@@ -1,10 +1,12 @@
- <div id="current_post" class="row" data-id="<%= @post.id %>">
+ <div id="current_post" class="row" data-post="<%= @post.id %>" data-user="<%= current_user.id if current_user %>">
   <div class="col-lg-8 col-md-10 mx-auto">
     <p class="logger"></p>
     <p><i class="fa fa-tags"></i> Categories:
       <%= render partial: "categories/category", collection: @post.categories %>
     <p>
-    <%= set_post_ranking %>
+    <div id="stars_ranking">
+      <%= add_start_by_post_ranking @user_ranking %>
+    </div>
     <hr>
     <%= @post.content %>
     </p>
diff --git a/app/views/rankings/_ranking.html.erb b/app/views/rankings/_ranking.html.erb
index 7c8a12e..5ef5681 100644
--- a/app/views/rankings/_ranking.html.erb
+++ b/app/views/rankings/_ranking.html.erb
@@ -1,5 +1,5 @@
 <tr>
-  <td><%= ranking.title %></td>
+  <td><%= link_to ranking.title, ranking %></td>
   <td><%= ranking.user.username %></td>
   <td><%= ranking.ranking_value %></td>
 </tr>
\ No newline at end of file
diff --git a/app/views/rankings/index.html.erb b/app/views/rankings/index.html.erb
index 2ce37fe..e36899a 100644
--- a/app/views/rankings/index.html.erb
+++ b/app/views/rankings/index.html.erb
@@ -9,6 +9,6 @@
   </thead>
 
   <tbody>
-    <%= render @posts %>
+    <%= render partial: "ranking", collection: @posts %>
   </tbody>
 </table>
diff --git a/config/routes.rb b/config/routes.rb
index 50a8e5b..574c298 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -11,7 +11,7 @@
 
   resources :comments, only: %i[create update destroy]
 
-  resources :rankings, only: %i[index create update destroy]
+  resources :rankings, only: %i[index create]
 
   root "posts#index"
 end
diff --git a/spec/controllers/rankings_controller_spec.rb b/spec/controllers/rankings_controller_spec.rb
index 8d5e13f..c719664 100644
--- a/spec/controllers/rankings_controller_spec.rb
+++ b/spec/controllers/rankings_controller_spec.rb
@@ -5,10 +5,14 @@
 RSpec.describe RankingsController, type: :controller do
   let(:global_user) { FactoryBot.create(:user) }
 
-  before { sign_in global_user }
+  before do
+    FactoryBot.create_list(:post, 3)
+    sign_in global_user
+  end
 
   describe "GET #index" do
-    let(:rankings) { FactoryBot.create_list(:ranking, 3) }
+
+    let(:posts_sorted) { Post.all.sort_by(&:ranking_value).reverse }
 
     context "when the request is valid" do
       before do
@@ -24,58 +28,9 @@
       end
 
       it "validates @rankings" do
-        expect(assigns(:rankings)).to match(rankings)
-      end
-    end
-  end
-
-  describe "POST #update" do
-
-    let(:ranking) { FactoryBot.create(:ranking) }
-    let(:ranking_id) { ranking.id }
-    let(:updated_ranking) { FactoryBot.attributes_for(:ranking) }
-
-    let(:params) do
-      {
-        id: ranking_id,
-        ranking: updated_ranking,
-      }
-    end
-
-    context "when the request is valid" do
-
-      before { post :update, params: params }
-
-      it "returns status code :found" do
-        expect(response).to have_http_status(:found)
+        expect(assigns(:posts)).to match(posts_sorted)
       end
-
     end
   end
 
-  describe "POST #destroy" do
-
-    let(:ranking) { FactoryBot.create(:ranking) }
-    let(:ranking_id) { ranking.id }
-
-    let(:params) do
-      {
-        id: ranking_id,
-      }
-    end
-
-    context "when the request is valid" do
-
-      before { post :destroy, params: params }
-
-      it "returns status code :found" do
-        expect(response).to have_http_status(:found)
-      end
-
-      it "redirect_to :index" do
-        expect(response).to redirect_to(action: :index)
-      end
-
-    end
-  end
 end