Contents

class Hash

  ##
  ## CONVERTING
  ##

  #
  # convert self into a hash, but only include the specified keys
  #
  def pick(*keys)
    keys.map(&:to_s).inject({}) do |hsh, key|
      if has_key?(key)
        hsh[key] = self[key]
      end
      hsh
    end
  end

  #
  # recursive merging (aka deep merge)
  # taken from ActiveSupport::CoreExtensions::Hash::DeepMerge
  #
  def deep_merge(other_hash)
    self.merge(other_hash) do |key, oldval, newval|
      oldval = oldval.to_hash if oldval.respond_to?(:to_hash)
      newval = newval.to_hash if newval.respond_to?(:to_hash)
      oldval.class.to_s == 'Hash' && newval.class.to_s == 'Hash' ? oldval.deep_merge(newval) : newval
    end
  end

  def deep_merge!(other_hash)
    replace(deep_merge(other_hash))
  end

end

Version data entries

9 entries across 9 versions & 1 rubygems

Version	Path
leap_cli-1.8.1	lib/leap_cli/core_ext/hash.rb
leap_cli-1.8	lib/leap_cli/core_ext/hash.rb
leap_cli-1.7.4	lib/leap_cli/core_ext/hash.rb
leap_cli-1.7.3	lib/leap_cli/core_ext/hash.rb
leap_cli-1.6.2	lib/leap_cli/core_ext/hash.rb
leap_cli-1.5.6	lib/core_ext/hash.rb
leap_cli-1.5.1	lib/core_ext/hash.rb
leap_cli-1.5.0	lib/core_ext/hash.rb
leap_cli-1.2.5	lib/core_ext/hash.rb