module Hashie::Extensions::MethodReader

MethodReader allows you to access keys of the hash via method calls. This gives you an OStruct like way to access your hash's keys. It will recognize keys either as strings or symbols.

Note that while nil keys will be returned as nil, undefined keys will raise NoMethodErrors. Also note that respond_to? has been patched to appropriately recognize key methods.

@example

class User < Hash
  include Hashie::Extensions::MethodReader
end

user = User.new
user['first_name'] = 'Michael'
user.first_name # => 'Michael'

user[:last_name] = 'Bleigh'
user.last_name # => 'Bleigh'

user[:birthday] = nil
user.birthday # => nil

user.not_declared # => NoMethodError

Public Instance Methods

method_missing(name, *args) click to toggle source
Calls superclass method
# File lib/hashie/extensions/method_access.rb, line 35
def method_missing(name, *args)
  if key?(name)
    self[name]
  else
    sname = name.to_s
    if key?(sname)
      self[sname]
    elsif sname[-1] == '?'
      kname = sname[0..-2]
      key?(kname) || key?(kname.to_sym)
    else
      super
    end
  end
end
respond_to_missing?(name, include_private = false) click to toggle source
Calls superclass method
# File lib/hashie/extensions/method_access.rb, line 30
def respond_to_missing?(name, include_private = false)
  return true if key?(name.to_s) || key?(name.to_sym)
  super
end