I have a store_decorator - module StoreDecorator def self.prepended(base) base.has_many :products, class_name: ‘Spree::Product’ base.has_many :product_lists base.belongs_to :user, class_name: ‘Spree::User’, optional: true base.has_one :store_content, foreign_key: ‘spree_store_id’, dependent: :destroy base.has_one :store_addrress, class_name: ‘StoreAddress’, foreign_key: ‘spree_store_id’ base.has_one :address, through: :store_addrress # base.validates :name, presence: true # base.validates :url, presence: true # base.validates :meta_description, presence: true # base.validates :meta_keywords, presence: true end _Spree_::_Store_.prepend self end