Module: AdaptivePayments::Aliases

Includes:

Forwardable

Included in:

JsonModel

Defined in:

lib/pp-adaptive/support/aliases.rb

Overview

Provides an interface to create shortcuts to child nodes without traversing an object graph

Instance Method Summary

• #alias_param(attr, alias_name, original_name) ⇒ Object

  Invoke alias_name as if original_name were invoked on attr.

• #alias_params(attr, aliases) ⇒ Object

  Shortcut for definining multiple aliases in a single call.

Instance Method Details

#alias_param(attr, alias_name, original_name) ⇒ Object

Invoke alias_name as if original_name were invoked on attr

Parameters:

• attr (Symbol) —

  the name of the attribute containing the child node

• alias_name (Symbol) —

  the name of the alias method to define

• original_name (Symbol) —

  the name of the original method in attr

# File 'lib/pp-adaptive/support/aliases.rb', line 17

def alias_param(attr, alias_name, original_name)
  def_delegator attr, original_name,        alias_name
  def_delegator attr, :"#{original_name}=", :"#{alias_name}="
  def_delegator attr, :"#{original_name}?", :"#{alias_name}?" # FIXME: Only alias this for Booleans
end

#alias_params(attr, aliases) ⇒ Object

Shortcut for definining multiple aliases in a single call

Parameters:

• attr (Symbol) —

  the name of the attribute containing the child node

• aliases (Hash) —

  a Hash mapping { :alias_name => :original_name }

# File 'lib/pp-adaptive/support/aliases.rb', line 29

def alias_params(attr, aliases)
  aliases.each { |k, v| alias_param(attr, k, v) }
end