class ActiveSupport::InheritableOptions

Inheritable Options¶ ↑

InheritableOptions provides a constructor to build an OrderedOptions hash inherited from another hash.

Use this if you already have some hash and you want to create a new one based on it.

h = ActiveSupport::InheritableOptions.new({ girl: 'Mary', boy: 'John' })
h.girl # => 'Mary'
h.boy  # => 'John'

If the existing hash has string keys, call Hash#symbolize_keys on it.

h = ActiveSupport::InheritableOptions.new({ 'girl' => 'Mary', 'boy' => 'John' }.symbolize_keys)
h.girl # => 'Mary'
h.boy  # => 'John'

Public Class Methods

new (parent = nil)

Calls superclass method

# File activesupport/lib/active_support/ordered_options.rb, line 90
def initialize(parent = nil)
  @parent = parent
  if @parent.kind_of?(OrderedOptions)
    # use the faster _get when dealing with OrderedOptions
    super() { |h, k| @parent._get(k) }
  elsif @parent
    super() { |h, k| @parent[k] }
  else
    super()
    @parent = {}
  end
end

Public Instance Methods

== (other)

# File activesupport/lib/active_support/ordered_options.rb, line 107
def ==(other)
  to_h == other.to_h
end

each (&block)

# File activesupport/lib/active_support/ordered_options.rb, line 142
def each(&block)
  to_h.each(&block)
  self
end

inheritable_copy ()

# File activesupport/lib/active_support/ordered_options.rb, line 134
def inheritable_copy
  self.class.new(self)
end

inspect ()

# File activesupport/lib/active_support/ordered_options.rb, line 111
def inspect
  "#<#{self.class.name} #{to_h.inspect}>"
end

key? (key)

Calls superclass method

# File activesupport/lib/active_support/ordered_options.rb, line 126
def key?(key)
  super || @parent.key?(key)
end

Also aliased as: own_key?

overridden? (key)

# File activesupport/lib/active_support/ordered_options.rb, line 130
def overridden?(key)
  !!(@parent && @parent.key?(key) && own_key?(key.to_sym))
end

own_key? (key)

Alias for: key?

pretty_print (pp)

# File activesupport/lib/active_support/ordered_options.rb, line 119
def pretty_print(pp)
  pp.pp_hash(to_h)
end

to_a ()

# File activesupport/lib/active_support/ordered_options.rb, line 138
def to_a
  entries
end

to_h ()

# File activesupport/lib/active_support/ordered_options.rb, line 103
def to_h
  @parent.merge(self)
end

to_s ()

# File activesupport/lib/active_support/ordered_options.rb, line 115
def to_s
  to_h.to_s
end