Module: Propensity::Preferences::PreferableClassMethods

Defined in:
app/models/propensity/preferences/preferable_class_methods.rb

Instance Method Summary collapse

Instance Method Details

#preference(name, type, *args) ⇒ Object 



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# File 'app/models/propensity/preferences/preferable_class_methods.rb', line 5

def preference(name, type, *args)
  options = args.extract_options!
  options.assert_valid_keys(:default, :description)
  default = options[:default]
  description = options[:description] || name

  # cache_key will be nil for new objects, then if we check if there
  # is a pending preference before going to default
  define_method preference_getter_method(name) do
    if preference_cache_key(name) && preference_store.exist?(preference_cache_key(name))
      preference_store.get preference_cache_key(name)
    else
      if get_pending_preference(name)
        get_pending_preference(name)
      else
        send self.class.preference_default_getter_method(name)
      end
    end
  end
  alias_method prefers_getter_method(name), preference_getter_method(name)

  define_method preference_setter_method(name) do |value|
    value = convert_preference_value(value, type)
    if preference_cache_key(name)
      preference_store.set preference_cache_key(name), value, type
    else
      add_pending_preference(name, value)
    end
  end
  alias_method prefers_setter_method(name), preference_setter_method(name)

  define_method preference_default_getter_method(name) do
    default
  end

  define_method preference_type_getter_method(name) do
    type
  end

  define_method preference_description_getter_method(name) do
    description
  end
end

#preference_default_getter_method(name) ⇒ Object 



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# File 'app/models/propensity/preferences/preferable_class_methods.rb', line 75

def preference_default_getter_method(name)
  "preferred_#{name}_default".to_sym
end

#preference_description_getter_method(name) ⇒ Object 



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# File 'app/models/propensity/preferences/preferable_class_methods.rb', line 83

def preference_description_getter_method(name)
  "preferred_#{name}_description".to_sym
end

#preference_getter_method(name) ⇒ Object 



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# File 'app/models/propensity/preferences/preferable_class_methods.rb', line 59

def preference_getter_method(name)
  "preferred_#{name}".to_sym
end

#preference_setter_method(name) ⇒ Object 



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# File 'app/models/propensity/preferences/preferable_class_methods.rb', line 63

def preference_setter_method(name)
   "preferred_#{name}=".to_sym
end

#preference_type_getter_method(name) ⇒ Object 



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# File 'app/models/propensity/preferences/preferable_class_methods.rb', line 79

def preference_type_getter_method(name)
  "preferred_#{name}_type".to_sym
end

#prefers_getter_method(name) ⇒ Object 



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# File 'app/models/propensity/preferences/preferable_class_methods.rb', line 67

def prefers_getter_method(name)
  "prefers_#{name}?".to_sym
end

#prefers_setter_method(name) ⇒ Object 



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# File 'app/models/propensity/preferences/preferable_class_methods.rb', line 71

def prefers_setter_method(name)
   "prefers_#{name}=".to_sym
end

#remove_preference(name) ⇒ Object 



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# File 'app/models/propensity/preferences/preferable_class_methods.rb', line 49

def remove_preference(name)
  remove_method preference_getter_method(name) if method_defined? preference_getter_method(name)
  remove_method preference_setter_method(name) if method_defined? preference_setter_method(name)
  remove_method prefers_getter_method(name) if method_defined? prefers_getter_method(name)
  remove_method prefers_setter_method(name) if method_defined? prefers_setter_method(name)
  remove_method preference_default_getter_method(name) if method_defined? preference_default_getter_method(name)
  remove_method preference_type_getter_method(name) if method_defined? preference_type_getter_method(name)
  remove_method preference_description_getter_method(name) if method_defined? preference_description_getter_method(name)
end