ajusting show values from unity_procon graphs

app/controllers/unity_procons_controller.rb

@@ -14,6 +14,7 @@ def show
 	   	@rating = Rating.new
 	   	@ratings = Rating.where("unity_procon_id = ?", params[:id]).order("created_at DESC")
 	   	@ratingpie = Rating.where("unity_procon_id = ?", params[:id])
+	   	@rating_hash = return_hash
 
 	   	@hash = Gmaps4rails.build_markers(@unity_procon) do |unity_procon, marker|
 	  		marker.lat unity_procon.latitude
@@ -22,6 +23,36 @@ def show
 
 	end
 
+	def return_hash
+		hash = Hash.new
+		all_rating = Rating.where("unity_procon_id = ?", params[:id])
+
+		all_rating.each do |rating|
+
+			case rating.value_rating
+			when 1
+				ratings = Rating.all.select { |m| m.value_rating == rating.value_rating }
+				hash["Péssimo"] = ratings.count
+			when 2
+				ratings = Rating.all.select { |m| m.value_rating == rating.value_rating }	
+				hash["Ruim"] = ratings.count
+			when 3
+				ratings = Rating.all.select { |m| m.value_rating == rating.value_rating }
+				hash["Regular"] = ratings.count
+			when 4
+				ratings = Rating.all.select { |m| m.value_rating == rating.value_rating }
+				hash["Bom"] = ratings.count
+			when 5
+				ratings = Rating.all.select { |m| m.value_rating == rating.value_rating }
+				hash["Ótimo"] = ratings.count
+			else
+				#nothing to do
+			end	
+		end
+
+		hash
+	end
+
 	def ranking
 		@unity_procons = UnityProcon.order(:position_unity_procon)
 	end

app/views/unity_procons/show.html.erb

@@ -51,11 +51,14 @@
 						</span>
 						<br>
 						<% @ratingpie.order("value_rating") %>
-						<%= pie_chart @ratingpie.group("value_rating").count, height: "200px", colors: ["#FF0000","#FF8000","#FFFF00","#00FF00","#0040FF"] %>
+						<%= pie_chart @rating_hash, {library: {tooltip: {
+            pointFormat: '{series.name}: <b>{point.percentage:.1f}%</b>'
+
+        }}} %>
 						<center><h2>Nota: <%= a.average_pontuation %></h2></center>
 						<br>
 
-					<% end %>
+					<% end %> 
 					
 					<% if url_for(:back)=="http://0.0.0.0:3000/avaliar" %>
 						<span style="color:#FFA500">