HashFlatten

Two methods i sometimes miss on Hash.

#destructure

hash = { a: 'a', b: { a: 'b' }, c: { b: { a: 'c' } } }

hash.destructure =>

{ 'a' => 'a', 'b.a' => 'b', 'c.b.a' => 'c' }

#structure

hash = { 'a' => 'a', 'b.a' => 'b', 'c.b.a' => 'c' }

hash.structure =>

{ 'a' => 'a', 'b' => { 'a' => 'b' }, 'c' => { 'b' => { 'a' => 'c' } } }

Installation

Add this line to your application's Gemfile:

gem 'hash_flatten'

And then execute:

$ bundle

Or install it yourself as:

$ gem install hash_flatten

Usage

Use as refinement:

class MyClass
  using HashFlatten
end

now you can call #destructure od #structure on hashes in MyClass.

Here is an excellent blog post on refinements if you didn't use them before: http://interblah.net/why-is-nobody-using-refinements

License

The gem is available as open source under the terms of the MIT License.