Specify the types that the shareable objects can be shared with
# File lib/acts_as_shareable/shareable.rb, line 18 def acts_as_shareable(options={}) has_many :shares, :as => :shareable, :dependent => :destroy has_many :group_shares, -> {where(shared_to_type: 'Group')}, :as => :shareable, class_name: 'Share' has_many :user_shares, -> {where(shared_to_type: 'User')}, :as => :shareable, class_name: 'Share' has_many :shared_with_individual_users, through: :shares, source: :shared_to, source_type: 'User' has_many :shared_with_groups, through: :shares, source: :shared_to, source_type: 'Group' has_many :shared_with_group_users, through: :shared_with_groups, source: :users include ActsAsShareable::Shareable::InstanceMethods extend ActsAsShareable::Shareable::SingletonMethods accepts_nested_attributes_for :shares, allow_destroy: true end