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-rw-r--r--actionpack/lib/action_controller/polymorphic_routes.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/polymorphic_routes.rb b/actionpack/lib/action_controller/polymorphic_routes.rb
index ec883af26d..f043d89dae 100644
--- a/actionpack/lib/action_controller/polymorphic_routes.rb
+++ b/actionpack/lib/action_controller/polymorphic_routes.rb
@@ -68,6 +68,10 @@ module ActionController
# polymorphic_url(record) #-> comments_url()
#
def polymorphic_url(record_or_hash_or_array, options = {})
+ if record_or_hash_or_array.kind_of?(Array)
+ record_or_hash_or_array = record_or_hash_or_array.dup
+ end
+
record = extract_record(record_or_hash_or_array)
format = (options[:action].to_s == "formatted" and record_or_hash_or_array.pop)
namespace = extract_namespace(record_or_hash_or_array)