1 files changed, 8 insertions, 9 deletions
diff --git a/activerecord/lib/active_record/associations/preloader/association.rb b/activerecord/lib/active_record/associations/preloader/association.rb
index 33c8619359..a6e1a24360 100644
--- a/activerecord/lib/active_record/associations/preloader/association.rb
+++ b/activerecord/lib/active_record/associations/preloader/association.rb
@@ -33,7 +33,7 @@ module ActiveRecord
         end
 
         def query_scope(ids)
-          scope.where(association_key.in(ids))
+          scope.where(association_key_name => ids)
         end
 
         def table
@@ -104,11 +104,11 @@ module ActiveRecord
         end
 
         def association_key_type
-          @klass.column_for_attribute(association_key_name).type
+          @klass.type_for_attribute(association_key_name.to_s).type
         end
 
         def owner_key_type
-          @model.column_for_attribute(owner_key_name).type
+          @model.type_for_attribute(owner_key_name.to_s).type
         end
 
         def load_slices(slices)
@@ -142,19 +142,18 @@ module ActiveRecord
 
           scope._select!   preload_values[:select] || values[:select] || table[Arel.star]
           scope.includes! preload_values[:includes] || values[:includes]
+          scope.joins! preload_values[:joins] || values[:joins]
+          scope.order! preload_values[:order] || values[:order]
 
-          if preload_values.key? :order
-            scope.order! preload_values[:order]
-          else
-            if values.key? :order
-              scope.order! values[:order]
-            end
+          if preload_values[:readonly] || values[:readonly]
+            scope.readonly!
           end
 
           if options[:as]
             scope.where!(klass.table_name => { reflection.type => model.base_class.sti_name })
           end
 
+          scope.unscope_values = Array(values[:unscope])
           klass.default_scoped.merge(scope)
         end
       end