// Improve collections : where() method reworked (prototype changed) + validation of fields

classes/order/Order.php

@@ -1337,7 +1337,7 @@ class OrderCore extends ObjectModel
 	public function getOrderPaymentCollection()
 	{
 		$order_payments = new Collection('OrderPayment');
-		$order_payments->where('id_order = '.(int)$this->id);
+		$order_payments->where('id_order', '=', $this->id);
 		return $order_payments;
 	}
 
@@ -1426,7 +1426,7 @@ class OrderCore extends ObjectModel
 	public function getInvoicesCollection()
 	{
 		$order_invoices = new Collection('OrderInvoice');
-		$order_invoices->where('id_order = '.(int)$this->id);
+		$order_invoices->where('id_order', '=', $this->id);
 		return $order_invoices;
 	}
 

classes/order/OrderInvoice.php

@@ -503,7 +503,7 @@ class OrderInvoiceCore extends ObjectModel
 	public function getOrderPaymentCollection()
 	{
 		$order_payments = new Collection('OrderPayment');
-		$order_payments->where('id_order_invoice = '.(int)$this->id);
+		$order_payments->where('id_order_invoice', '=', $this->id);
 		return $order_payments;
 	}
 }

classes/order/OrderPayment.php

@@ -94,7 +94,7 @@ class OrderPaymentCore extends ObjectModel
 	public static function getByInvoiceId($id_invoice)
 	{
 		$payments = new Collection('OrderPayment');
-		$payments->where('a.id_order_invoice = '.(int)$id_invoice);
+		$payments->where('id_order_invoice', '=', $id_invoice);
 		return $payments;
 	}
 }