diff options
author | Carlos Antonio da Silva <carlosantoniodasilva@gmail.com> | 2012-05-23 09:19:56 -0700 |
---|---|---|
committer | Carlos Antonio da Silva <carlosantoniodasilva@gmail.com> | 2012-05-23 09:19:56 -0700 |
commit | 541429fbe49b0671adb3842ab1818230d670ef9f (patch) | |
tree | 64a71bae017ae2a6d5fc701eff2dfd8e57b05cd0 /activesupport/lib/active_support/core_ext/hash | |
parent | c1487f619045840d89f1e2dbc6e133e1c2cbf2f4 (diff) | |
parent | a4bb195c91fa9bb25e136aa8850f3acafea0a597 (diff) | |
download | rails-541429fbe49b0671adb3842ab1818230d670ef9f.tar.gz rails-541429fbe49b0671adb3842ab1818230d670ef9f.tar.bz2 rails-541429fbe49b0671adb3842ab1818230d670ef9f.zip |
Merge pull request #6060 from lucashungaro/master
Adding deep versions of stringify_keys and symbolize_keys (plain and bang) for nested hashes
Diffstat (limited to 'activesupport/lib/active_support/core_ext/hash')
-rw-r--r-- | activesupport/lib/active_support/core_ext/hash/keys.rb | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/keys.rb b/activesupport/lib/active_support/core_ext/hash/keys.rb index 8b24ef3350..5eb861934d 100644 --- a/activesupport/lib/active_support/core_ext/hash/keys.rb +++ b/activesupport/lib/active_support/core_ext/hash/keys.rb @@ -64,4 +64,48 @@ class Hash raise ArgumentError.new("Unknown key: #{k}") unless valid_keys.include?(k) end end + + # Return a new hash with all keys converted to strings. + # This includes the keys from the root hash and from all + # nested hashes. + def deep_stringify_keys + result = {} + each do |key, value| + result[key.to_s] = value.is_a?(Hash) ? value.deep_stringify_keys : value + end + result + end + + # Destructively convert all keys to strings. + # This includes the keys from the root hash and from all + # nested hashes. + def deep_stringify_keys! + keys.each do |key| + val = delete(key) + self[key.to_s] = val.is_a?(Hash) ? val.deep_stringify_keys! : val + end + self + end + + # Destructively convert all keys to symbols, as long as they respond + # to +to_sym+. This includes the keys from the root hash and from all + # nested hashes. + def deep_symbolize_keys! + keys.each do |key| + val = delete(key) + self[(key.to_sym rescue key)] = val.is_a?(Hash) ? val.deep_stringify_keys! : val + end + self + end + + # Return a new hash with all keys converted to symbols, as long as + # they respond to +to_sym+. This includes the keys from the root hash + # and from all nested hashes. + def deep_symbolize_keys + result = {} + each do |key, value| + result[(key.to_sym rescue key)] = value.is_a?(Hash) ? value.deep_symbolize_keys : value + end + result + end end |