Class: ActiveAdmin::CollectionDecorator

Inherits:

Object

• Object
• ActiveAdmin::CollectionDecorator

Defined in:

lib/active_admin/collection_decorator.rb

Overview

This class decorates a collection of objects delegating mehods to behave like an Array. It’s used to decouple ActiveAdmin from Draper and thus being able to use PORO decorators as well.

It’s implementation is heavily based on the Draper::CollectionDecorator github.com/drapergem/draper/blob/aaa06bd2f1e219838b241a5534e7ca513edd1fe2/lib/draper/collection_decorator.rb

Instance Attribute Summary

• #decorator_class ⇒ Class readonly

  The decorator class used to decorate each item, as set by #initialize.

• #object ⇒ Object readonly

  The collection being decorated.

Instance Method Summary

• #decorated_collection ⇒ Object
• #initialize(object, with:) ⇒ CollectionDecorator constructor

  A new instance of CollectionDecorator.

Constructor Details

#initialize(object, with:) ⇒ CollectionDecorator

# File 'lib/active_admin/collection_decorator.rb', line 19

def initialize(object, with:)
  @object = object
  @decorator_class = with
end

Instance Attribute Details

#decorator_class ⇒ Class (readonly)

# File 'lib/active_admin/collection_decorator.rb', line 14

def decorator_class
  @decorator_class
end

#object ⇒ Object (readonly)

# File 'lib/active_admin/collection_decorator.rb', line 11

def object
  @object
end

Instance Method Details

#decorated_collection ⇒ Object

# File 'lib/active_admin/collection_decorator.rb', line 28

def decorated_collection
  @decorated_collection ||= object.map { |item| decorator_class.new(item) }
end