Contents

#--
# Adapted from Gavin Sinclair's #convert_keys.
#++
require 'facet/hash/keys_to_s%21'
class Hash
  # Converts all keys in the Hash to be String values, returning a new Hash.
  # With a from_class parameter, limits conversion to only a certain class of keys.
  # It defaults to nil which convert any key class.
  #
  #   require 'facet/hash/keys_to_s'
  #
  #   foo = { :name=>'Gavin', :wife=>:Lisa }
  #   foo.keys_to_s    #=>  { "name"=>"Gavin", "wife"=>:Lisa }
  #   foo.inspect      #=>  { :name =>"Gavin", :wife=>:Lisa }
  #
  def keys_to_s( from_class=nil )
    raise ArgumentError, "Parameter must be a class" unless from_class.kind_of?(Class) if from_class
    self.dup.keys_to_s!( from_class )
  end
  # Deprecated name.
  #alias_method( :keys_to_string, :keys_to_s )
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
facets-0.7.0	lib/facet/hash/keys_to_s.rb
facets-0.7.1	lib/facet/hash/keys_to_s.rb
facets-0.7.2	lib/facet/hash/keys_to_s.rb