adds css classes to voted options in debates

for logged users.
Closes #88

app/controllers/debates_controller.rb

@@ -7,13 +7,16 @@ class DebatesController < ApplicationController
   def index
     if params[:tag]
       @debates = Debate.tagged_with(params[:tag]).order("created_at DESC")
+      set_voted_values @debates.map(&:id)
     else
       @debates = Debate.all.order("created_at DESC")
+      set_voted_values @debates.map(&:id)
       @featured_debates = @debates.to_a.shift(3)
     end
   end
 
   def show
+    set_voted_values [@debate.id]
   end
 
   def new
@@ -40,6 +43,7 @@ class DebatesController < ApplicationController
 
   def vote
     @debate.vote_by(voter: current_user, vote: params[:value])
+    set_voted_values [@debate.id]
   end
 
 
@@ -55,4 +59,8 @@ class DebatesController < ApplicationController
     def validate_ownership
       raise ActiveRecord::RecordNotFound unless @debate.editable_by?(current_user)
     end
+
+    def set_voted_values(debates_ids)
+      @voted_values = current_user ? current_user.votes_on_debates(debates_ids) : {}
+    end
 end

app/views/debates/_votes.html.erb

@@ -1,7 +1,16 @@
+<% voted_classes = case @voted_values[debate.id]
+    when true
+      {in_favor: "voted", against: "no-voted"}
+    when false
+      {in_favor: "no-voted", against: "voted"}
+    else
+      {in_favor: "", against: ""}
+  end %>
+
 <div class="votes">
   <div class="in-favor inline-block">
     <%= link_to vote_debate_path(debate, value: 'yes'),
-        class: "like", title: t('votes.agree'), method: "post", remote: true do %>
+        class: "like #{voted_classes[:in_favor]}", title: t('votes.agree'), method: "post", remote: true do %>
       <i class="icon-like"></i>
       <span><%= percentage('likes', debate) %></span>
     <% end %>
@@ -10,7 +19,7 @@
   <span class="divider"></span>
 
   <div class="against inline-block">
-    <%= link_to vote_debate_path(debate, value: 'no'), class: "unlike", title: t('votes.disagree'), method: "post", remote: true do %>
+    <%= link_to vote_debate_path(debate, value: 'no'), class: "unlike #{voted_classes[:against]}", title: t('votes.disagree'), method: "post", remote: true do %>
       <i class="icon-unlike"></i>
       <span><%= percentage('dislikes', debate) %></span>
     <% end %>