Merge remote-tracking branch 'upstream/master'

1 files changed, 10 insertions, 5 deletions

diff --git a/actionpack/lib/action_view/helpers/date_helper.rb b/actionpack/lib/action_view/helpers/date_helper.rb
index e850c258ce..4deb87180c 100644
--- a/actionpack/lib/action_view/helpers/date_helper.rb
+++ b/actionpack/lib/action_view/helpers/date_helper.rb
@@ -765,11 +765,16 @@ module ActionView
         if @options[:use_hidden] || @options[:discard_year]
           build_hidden(:year, val)
         else
-          options                 = {}
-          options[:start]         = @options[:start_year] || middle_year - 5
-          options[:end]           = @options[:end_year] || middle_year + 5
-          options[:step]          = options[:start] < options[:end] ? 1 : -1
-          options[:leading_zeros] = false
+          options                     = {}
+          options[:start]             = @options[:start_year] || middle_year - 5
+          options[:end]               = @options[:end_year] || middle_year + 5
+          options[:step]              = options[:start] < options[:end] ? 1 : -1
+          options[:leading_zeros]     = false
+          options[:max_years_allowed] = @options[:max_years_allowed] || 1000
+
+          if (options[:end] - options[:start]).abs > options[:max_years_allowed]
+            raise ArgumentError,  "There're too many years options to be built. Are you sure you haven't mistyped something? You can provide the :max_years_allowed parameter"
+          end
 
           build_options_and_select(:year, val, options)
         end