[ADD] agregado mensaje en caso de que no haya registros que mostrar

static/src/js/main.js

@@ -99,12 +99,11 @@ openerp.eiru_purchase_to_sale = function (instance, local) {
 
         showModal: function (e) {
             var self = this;
-            if (self.data <=0) {
+            var PurchaseOrder = self.PurchaseOrder;
+            if (PurchaseOrder <= 0) {
                 model.web.notification.do_warn("Atención","Sin datos");
                 return
             }
-
-            var PurchaseOrder = self.PurchaseOrder;
             var titleData = [
                 {
                     title: "Pedidos"