lib/drafting/base_class_methods.rb
module Drafting
module BaseClassMethods
ALLOWED_DRAFT_OPTION_KEYS = [ :parent ]
def has_drafts(options={})
raise ArgumentError unless options.is_a?(Hash)
raise ArgumentError unless options.keys.all? { |k| ALLOWED_DRAFT_OPTION_KEYS.include?(k) }
class_attribute :draft_parent
if options[:parent]
parent_class = self.reflect_on_all_associations(:belongs_to).find { |a| a.name == options[:parent] }.try(:klass)
raise ArgumentError unless parent_class
unless parent_class.method_defined? :drafts
parent_class.class_eval do
def drafts(user)
Draft.where(
user: user,
user_type: user.try(:class).try(:name),
parent: self
)
end
def self.child_drafts(user)
Draft.where(
user: user,
user_type: user.try(:class).try(:name),
parent_type: self.base_class.name
)
end
end
end
self.draft_parent = options[:parent]
end
include Drafting::InstanceMethods
extend Drafting::ClassMethods
attr_accessor :draft_id
after_create :clear_draft
end
end
end