我想修改Odoo8中的一段JS代码(模块point_of_sale)。原代码是这样的:functionopenerp_pos_models(instance,module){...module.Order=Backbone.Model.extend({...addPaymentline:function(cashregister){varpaymentLines=this.get('paymentLines');varnewPaymentline=newmodule.Paymentline({},{cashregister:cashregister,pos:this.pos});if(