don't need to explicitly call on class there as we're in the right scope anyway

git-svn-id: https://dev.finn.de/svn/cockpit/branches/reporting_merge@1791 7926756e-e54e-46e6-9721-ed318f58905e

app/models/cost_query/filter.rb

@@ -31,7 +31,7 @@ module CostQuery::Filter
   end
 
   def self.all_grouped
-    CostQuery::Filter.all.group_by { |f| f.applies_for }.to_a.sort { |a,b| a.first.to_s <=> b.first.to_s }
+    all.group_by { |f| f.applies_for }.to_a.sort { |a,b| a.first.to_s <=> b.first.to_s }
   end
 
   def self.from_hash

app/models/cost_query/group_by.rb

@@ -23,7 +23,7 @@ module CostQuery::GroupBy
   end
 
   def self.all_grouped
-    all.group_by { |g| g.applies_for }.to_a.sort { |a,b| a.first.to_s <=> b.first.to_s }
+    all.group_by { |f| f.applies_for }.to_a.sort { |a,b| a.first.to_s <=> b.first.to_s }
   end
 
   def self.from_hash