finished tag clouds

app/models/tag.rb

@@ -14,16 +14,34 @@ class Tag
     for_now = {:start_at=>20.days.ago,:end_at=>Time.now}
     for_yesterday = {:start_at=>19.days.ago,:end_at=>1.days.ago}
 
+
     range = self.class.all.collect{ |tag|
       get_impressionist_diff(tag)
     }
-    (get_impressionist_diff - range.min).abs
+    range.sort!.reverse!.uniq!
+    offset_size = range.size+4
+    section_3 =  range.last..range[-(offset_size/4)]
+    section_2 =  range[-(offset_size/4)-1]..range[-2*(offset_size/4)] rescue nil
+    section_1 =  range[-2*(offset_size/4)-1]..range[1]  rescue nil
+
+
+    case get_impressionist_diff
+    when range.first
+      return :heading1
+    when section_1
+      return :heading2
+    when section_2
+      return :heading3
+    when section_3
+      return :heading4
+    end
+    
   end
 
 protected
   def get_impressionist_diff(item_tag = self)
-      for_now = item_tag.impressionist_count(:start_date=>20.days.ago,:end_date=>Time.now)
-      for_yesterday = item_tag.impressionist_count(:start_date=>21.days.ago,:end_date=>1.days.ago)
+      for_now = item_tag.impressions.where(:created_at.gte=> 20.days.ago,:created_at.lte => Time.now).count
+      for_yesterday = item_tag.impressions.where(:created_at.gte=> 21.days.ago,:created_at.lte => 1.days.ago).count
       for_now - for_yesterday
   end