Class: Wayback::Factory

Inherits:
Object
  • Object
show all
Defined in:
lib/wayback/factory.rb

Class Method Summary collapse

Class Method Details

.fetch_or_new(method, klass, attrs = {}) ⇒ Wayback::Action::Favorite, ...

Instantiates a new action object

Parameters:

  • attrs (Hash) (defaults to: {})

Returns:

  • (Wayback::Action::Favorite, Wayback::Action::Follow, Wayback::Action::ListMemberAdded, Wayback::Action::Mention, Wayback::Action::Reply, Wayback::Action::Retweet)

Raises:

  • (ArgumentError) —

    Error raised when supplied argument is missing an :action key.



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# File 'lib/wayback/factory.rb', line 9

def self.fetch_or_new(method, klass, attrs={})
  return unless attrs
  type = attrs.delete(method.to_sym)
  if type
    const_name = type.gsub(/\/(.?)/){"::#{$1.upcase}"}.gsub(/(?:^|_)(.)/){$1.upcase}
    klass.const_get(const_name.to_sym).fetch_or_new(attrs)
  else
    raise ArgumentError, "argument must have :#{method} key"
  end
end