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@@ -56,14 +56,17 @@ module Shooter #:nodoc:
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         def self.included(base)
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           base.extend ClassMethods
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           if base.respond_to?(:named_scope)
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-            base.named_scope :by_date, lambda {|by_date| { :conditions => initial_conditions(by_date), :order => order }}
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-            base.named_scope :recent, lambda {|length_of_time| length_of_time ||= 1.year; recent_options(length_of_time) }
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-            base.named_scope :between, lambda {|start_date, end_date| { :conditions => between_conditions(start_date, end_date), :order => order }}
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+            base.class_eval do
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+              named_scope :by_date, lambda {|by_date| { :conditions => initial_conditions(by_date), :order => order }}
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+              named_scope :recent, lambda {|*length_of_time| length_of_time = length_of_time.blank? ? 1.year: length_of_time; recent_options(length_of_time) }
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+              named_scope :between, lambda {|start_date, end_date| { :conditions => between_conditions(start_date, end_date), :order => order }}
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+            end
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           else
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             base.extend WithScopeMethods
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           end
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         end
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+        
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         module WithScopeMethods
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           def by_date(by_date, options ={})
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             with_scope(:find => {:conditions => initial_conditions(by_date), :order => order}) do