Merge pull request #21725 from yui-knk/fix/ar_sum

Fix arguments of `AR::Calculations#sum`
rails · Sep 23, 2015 · 7c08e1a · 7c08e1a
2 parents 624253f + 0f6d47d
commit 7c08e1a
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb
@@ -70,9 +70,9 @@ def maximum(column_name)
     # +calculate+ for examples with options.
     #
     #   Person.sum(:age) # => 4562
-    def sum(*args)
-      return super if block_given?
-      calculate(:sum, *args)
+    def sum(column_name = nil, &block)
+      return super &block if block_given?
+      calculate(:sum, column_name)
     end
 
     # This calculates aggregate values in the given column. Methods for count, sum, average,