1 files changed, 5 insertions, 19 deletions
diff --git a/lib/arel/predications.rb b/lib/arel/predications.rb
index 44059a54fe..36eae074a8 100644
--- a/lib/arel/predications.rb
+++ b/lib/arel/predications.rb
@@ -1,5 +1,6 @@
 module Arel
   module Predications
+
     def as other
       Nodes::As.new self, Nodes::SqlLiteral.new(other)
     end
@@ -162,32 +163,17 @@ module Arel
       grouping_all :lteq, others
     end
 
-    def asc
-      Nodes::Ordering.new self, :asc
-    end
-
-    def desc
-      Nodes::Ordering.new self, :desc
-    end
-
     private
 
     def grouping_any method_id, others
-      others = others.dup
-      first = send method_id, others.shift
-
-      Nodes::Grouping.new others.inject(first) { |memo,expr|
-        Nodes::Or.new(memo, send(method_id, expr))
+      nodes = others.map {|expr| send(method_id, expr)}
+      Nodes::Grouping.new nodes.inject { |memo,node|
+        Nodes::Or.new(memo, node)
       }
     end
 
     def grouping_all method_id, others
-      others = others.dup
-      first = send method_id, others.shift
-
-      Nodes::Grouping.new others.inject(first) { |memo,expr|
-        Nodes::And.new([memo, send(method_id, expr)])
-      }
+      Nodes::Grouping.new Nodes::And.new(others.map {|expr| send(method_id, expr)})
     end
   end
 end