Implements tag_cloud using the new custom counters

app/controllers/debates_controller.rb

@@ -12,7 +12,7 @@ class DebatesController < ApplicationController
     @debates = @search_terms.present? ? Debate.search(@search_terms) : Debate.all
     @debates = @debates.tagged_with(@tag_filter) if @tag_filter
     @debates = @debates.page(params[:page]).for_render.send("sort_by_#{@current_order}")
-    @tag_cloud = Debate.tag_counts.order(taggings_count: :desc, name: :asc).limit(20)
+    @tag_cloud = Debate.tag_counts.order(debates_count: :desc, name: :asc).limit(20)
     set_debate_votes(@debates)
   end
 

app/controllers/proposals_controller.rb

@@ -11,7 +11,7 @@ class ProposalsController < ApplicationController
     @proposals = @search_terms.present? ? Proposal.search(@search_terms) : Proposal.all
     @proposals = @proposals.tagged_with(@tag_filter) if @tag_filter
     @proposals = @proposals.page(params[:page]).for_render.send("sort_by_#{@current_order}")
-    @tag_cloud = Proposal.tag_counts.order(taggings_count: :desc, name: :asc).limit(20)
+    @tag_cloud = Proposal.tag_counts.order(proposals_count: :desc, name: :asc).limit(20)
     set_proposal_votes(@proposals)
   end
 

app/helpers/tags_helper.rb

@@ -1,7 +1,7 @@
 module TagsHelper
 
-  def taggable_path(taggable, tag_name)
+  def taggable_path(taggable_type, tag_name)
-    case taggable
+    case taggable_type
     when 'debate'
       debates_path(tag: tag_name)
     when 'proposal'
@@ -11,4 +11,18 @@ module TagsHelper
     end
   end
 
+  def taggable_counter_field(taggable_type)
+    "#{taggable_type.underscore.pluralize}_count"
+  end
+
+  def tag_cloud(tags, classes, counter_field = :taggings_count)
+    return [] if tags.empty?
+
+    max_count = tags.sort_by(&counter_field).last.send(counter_field).to_f
+
+    tags.each do |tag|
+      index = ((tag.send(counter_field) / max_count) * (classes.size - 1))
+      yield tag, classes[index.nan? ? 0 : index.round]
+    end
+  end
 end

app/views/shared/_tag_cloud.html.erb

@@ -3,6 +3,9 @@
   <h3><%= t("shared.tags_cloud.tags") %></h3>
   <br>
   <% tag_cloud @tag_cloud, %w[s m l] do |tag, css_class| %>
-    <%= link_to sanitize("#{tag.name} <span class='label round info'>#{tag.taggings_count}</span>"), taggable_path(taggable, tag.name), class: css_class %>
+    <%= link_to taggable_path(taggable, tag.name), class: css_class do %>
+      <%= tag.name %>
+      <span class='label round info'><%= tag.send(taggable_counter_field(taggable)) %></span>
+    <% end %>
   <% end %>
 </div>