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-rw-r--r--actionpack/lib/action_controller/metal/strong_parameters.rb6
1 files changed, 5 insertions, 1 deletions
diff --git a/actionpack/lib/action_controller/metal/strong_parameters.rb b/actionpack/lib/action_controller/metal/strong_parameters.rb
index b495ab3f0f..66403d533c 100644
--- a/actionpack/lib/action_controller/metal/strong_parameters.rb
+++ b/actionpack/lib/action_controller/metal/strong_parameters.rb
@@ -334,7 +334,7 @@ module ActionController
def each_element(object)
if object.is_a?(Array)
object.map { |el| yield el }.compact
- elsif object.is_a?(Hash) && object.keys.all? { |k| k =~ /\A-?\d+\z/ }
+ elsif fields_for_style?(object)
hash = object.class.new
object.each { |k,v| hash[k] = yield v }
hash
@@ -343,6 +343,10 @@ module ActionController
end
end
+ def fields_for_style?(object)
+ object.is_a?(Hash) && object.all? { |k, v| k =~ /\A-?\d+\z/ && v.is_a?(Hash) }
+ end
+
def unpermitted_parameters!(params)
unpermitted_keys = unpermitted_keys(params)
if unpermitted_keys.any?