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-rw-r--r--activesupport/lib/active_support/core_ext/hash/keys.rb4
1 files changed, 2 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/keys.rb b/activesupport/lib/active_support/core_ext/hash/keys.rb
index 8725138856..3c8a59f00a 100644
--- a/activesupport/lib/active_support/core_ext/hash/keys.rb
+++ b/activesupport/lib/active_support/core_ext/hash/keys.rb
@@ -43,8 +43,8 @@ module ActiveSupport #:nodoc:
alias_method :to_options, :symbolize_keys
alias_method :to_options!, :symbolize_keys!
- def assert_valid_keys(valid_keys)
- unknown_keys = keys - valid_keys
+ def assert_valid_keys(*valid_keys)
+ unknown_keys = keys - [valid_keys].flatten
raise(ArgumentError, "Unknown key(s): #{unknown_keys.join(", ")}") unless unknown_keys.empty?
end
end