Merge commit 'rails/master'

1 files changed, 7 insertions, 1 deletions

diff --git a/activerecord/lib/active_record/relation/batches.rb b/activerecord/lib/active_record/relation/batches.rb
index 4a260d4caa..1c61e7d450 100644
--- a/activerecord/lib/active_record/relation/batches.rb
+++ b/activerecord/lib/active_record/relation/batches.rb
@@ -1,3 +1,5 @@
+require 'active_support/core_ext/object/blank'
+
 module ActiveRecord
   module Batches # :nodoc:
     # Yields each record that was found by the find +options+. The find is
@@ -48,6 +50,10 @@ module ActiveRecord
     def find_in_batches(options = {})
       relation = self
 
+       if orders.present? || taken.present?
+         ActiveRecord::Base.logger.warn("Scoped order and limit are ignored, it's forced to be batch order and batch size")
+       end
+
       if (finder_options = options.except(:start, :batch_size)).present?
         raise "You can't specify an order, it's forced to be #{batch_order}" if options[:order].present?
         raise "You can't specify a limit, it's forced to be the batch_size"  if options[:limit].present?
@@ -75,4 +81,4 @@ module ActiveRecord
       "#{@klass.table_name}.#{@klass.primary_key} ASC"
     end
   end
-end
\ No newline at end of file
+end