Use AR 3.2's uniq for distinct don't strip order without sorts

lib/ransack/adapters/active_record/3.0/context.rb

@@ -18,7 +18,10 @@ module Ransack
 
         def evaluate(search, opts = {})
           viz = Visitor.new
-          relation = @object.except(:order).where(viz.accept(search.base)).order(viz.accept(search.sorts))
+          relation = @object.where(viz.accept(search.base))
+          if search.sorts.any?
+            relation = relation.except(:order).order(viz.accept(search.sorts))
+          end
           opts[:distinct] ? relation.select("DISTINCT #{@klass.quoted_table_name}.*") : relation
         end
 

lib/ransack/adapters/active_record/3.1/context.rb

@@ -16,7 +16,10 @@ module Ransack
 
         def evaluate(search, opts = {})
           viz = Visitor.new
-          relation = @object.except(:order).where(viz.accept(search.base)).order(viz.accept(search.sorts))
+          relation = @object.where(viz.accept(search.base))
+          if search.sorts.any?
+            relation = relation.except(:order).order(viz.accept(search.sorts))
+          end
           opts[:distinct] ? relation.select("DISTINCT #{@klass.quoted_table_name}.*") : relation
         end
 

lib/ransack/adapters/active_record/context.rb

@@ -26,6 +26,15 @@ module Ransack
           @engine.connection.schema_cache.columns_hash[table][name].type
         end
         
+        def evaluate(search, opts = {})
+          viz = Visitor.new
+          relation = @object.where(viz.accept(search.base))
+          if search.sorts.any?
+            relation = relation.except(:order).order(viz.accept(search.sorts))
+          end
+          opts[:distinct] ? relation.uniq : relation
+        end
+        
       end
     end
   end

ransack.gemspec

@@ -17,7 +17,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'activerecord', '~> 3.0'
   s.add_dependency 'actionpack', '~> 3.0'
   s.add_dependency 'polyamorous', '~> 0.5.0'
-  s.add_development_dependency 'rspec', '~> 2.6.0'
+  s.add_development_dependency 'rspec', '~> 2.8.0'
   s.add_development_dependency 'machinist', '~> 1.0.6'
   s.add_development_dependency 'faker', '~> 0.9.5'
   s.add_development_dependency 'sqlite3', '~> 1.3.3'