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-rw-r--r--activesupport/lib/core_ext/hash/keys.rb19
1 files changed, 19 insertions, 0 deletions
diff --git a/activesupport/lib/core_ext/hash/keys.rb b/activesupport/lib/core_ext/hash/keys.rb
index 4dd982337c..3c301c6fa6 100644
--- a/activesupport/lib/core_ext/hash/keys.rb
+++ b/activesupport/lib/core_ext/hash/keys.rb
@@ -2,6 +2,25 @@ module ActiveSupport #:nodoc:
module CoreExtensions #:nodoc:
module Hash #:nodoc:
module Keys
+ # Return a new hash with all keys converted to strings.
+ def stringify_keys
+ inject({}) do |options, (key, value)|
+ options[key.to_s] = value
+ options
+ end
+ end
+
+ # Destructively convert all keys to strings.
+ def stringify_keys!
+ keys.each do |key|
+ unless key.is_a?(String)
+ self[key.to_s] = self[key]
+ delete(key)
+ end
+ end
+ self
+ end
+
# Return a new hash with all keys converted to symbols.
def symbolize_keys
inject({}) do |options, (key, value)|