Class: DistributedPress::V1::Social::Collection

Inherits:
ReferencedObject show all
Includes:
Enumerable
Defined in:
lib/distributed_press/v1/social/collection.rb

Overview

A Collection or OrderedCollection is a an object with a list of items. Sometimes, collections are paginated, so we provide methods to traverse them.

Constant Summary collapse

ATTRIBUTES = 
%w[items orderedItems].freeze
RECURSIVE_ATTRIBUTES = 
%w[first next].freeze

Constants inherited from ReferencedObject

ReferencedObject::PUBLIC, ReferencedObject::REFERENTIABLE_ATTRIBUTES, ReferencedObject::URI_FIXES

Instance Attribute Summary

Attributes inherited from ReferencedObject

#dereferencer, #object, #referenced

Instance Method Summary collapse

Methods inherited from ReferencedObject

#_dump, _load, #initialize, #parsed_response, #private?, #public?, #success?, #unlisted?

Constructor Details

This class inherits a constructor from DistributedPress::V1::Social::ReferencedObject

Instance Method Details

#each(&block) ⇒ Object

TODO:

Implement lazy loading

If the Collection has items, yield them and keep processing any pages forward until the end.



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# File 'lib/distributed_press/v1/social/collection.rb', line 21

def each(&block)
  counter = 0
  total_items = object['totalItems'].to_i

  Enumerator.new do |enum|
    catch :total_items_reached do
      throw :total_items_reached if total_items.zero?

      ATTRIBUTES.each do |attribute|
        next unless object.key?(attribute)

        referenced[attribute].each(&block).each do |item|
          counter += 1

          enum << item

          throw :total_items_reached if total_items == counter
        end
      end

      RECURSIVE_ATTRIBUTES.each do |attribute|
        next unless object.key?(attribute)
        throw :total_items_reached if object['id'] && object['id'] == referenced[attribute].uri

        referenced[attribute].each(&block).each do |item|
          counter += 1
          enum << item

          throw :total_items_reached if total_items == counter
        end
      end
    end
  end
end