aggiornamento visualizzazione Ordini e Carrello

src/server/modules/Cart.js

@@ -45,12 +45,16 @@ class Cart {
   }
 
   async subqty(itemorder) {
-    const myitem = this.items.find((rec) => rec.order._id.toString() === itemorder._id)
-    if (!!myitem) {
-      myitem.order.quantity--;
-      await Order.findOneAndUpdate({ _id: myitem.order._id }, { $set: myitem.order }, { new: false });
-      this.updatetotals();
-      return myitem.order.quantity;
+    try {
+      const myitem = this.items.find((rec) => rec.order._id.toString() === itemorder._id)
+      if (!!myitem && myitem.order.quantity > 0) {
+        myitem.order.quantity--;
+        await Order.findOneAndUpdate({ _id: myitem.order._id }, { $set: myitem.order }, { new: false });
+        this.updatetotals();
+        return myitem.order.quantity;
+      }
+    } catch (e) {
+      console.error('Err: ', e);
     }
   }
 
@@ -86,18 +90,22 @@ class Cart {
   }
 
   updatetotals() {
-    this.totalQty = 0;
-    this.totalPrice = 0;
-    for (const rec in this.items) {
-      let order = this.items[rec].order;
-      if (!order) {
-        order = this.items[rec];
+    try {
+      this.totalQty = 0;
+      this.totalPrice = 0;
+      for (const rec in this.items) {
+        let order = this.items[rec].order;
+        if (!order) {
+          order = this.items[rec];
+        }
+        this.totalQty += order.quantity;
+        this.totalPrice += order.price * order.quantity;
       }
-      this.totalQty += order.quantity;
-      this.totalPrice += order.price * order.quantity;
+
+      this.totalPrice = parseFloat(this.totalPrice.toFixed(2))
+    } catch (e) {
+      console.error('Err: ', e);
     }
-    
-    this.totalPrice = parseFloat(this.totalPrice.toFixed(2))
 
   }