Added support for saving receipts.

shop/shopservice.cpp

@@ -1,4 +1,5 @@
 #include "shopservice.h"
+#include "shop-odb.hxx"
 
 ShopService::ShopService()
 {
@@ -78,6 +79,12 @@ void ShopService::calculateItem(QSharedPointer<VoucherItem> item)
     }
 }
 
+void ShopService::loadItems(QSharedPointer<Voucher> voucher)
+{
+    Service<VoucherItem> srv;
+    voucher->setItems(srv.all(QString("voucher = %1").arg(voucher->id())));
+}
+
 QDecDouble ShopService::includeVat(QDecDouble price, Enums::VatType vatType)
 {
     return price * ((vatRate(vatType) / 100) + QDecDouble(1));
@@ -116,3 +123,35 @@ QDecDouble ShopService::vatRate(Enums::VatType vatType)
 
     return vatRate;
 }
+
+void ShopService::save(QSharedPointer<Voucher> entity)
+{
+    Transaction tr;
+    odb::database *db = Context::instance().db();
+
+    db->persist(entity);
+
+    foreach (QSharedPointer<VoucherItem> item, entity->items()) {
+        item->setVoucher(entity.toWeakRef());
+        db->persist(item);
+    }
+
+    tr.commit();
+}
+
+void ShopService::update(QSharedPointer<Voucher> entity)
+{
+    Transaction tr;
+    odb::database *db = Context::instance().db();
+
+    db->execute(QString("DELETE FROM VoucherItem WHERE voucher = %1").arg(entity->id()).toStdString());
+
+    foreach (QSharedPointer<VoucherItem> item, entity->items()) {
+        item->setVoucher(entity.toWeakRef());
+        db->persist(item);
+    }
+
+    db->update(entity);
+
+    tr.commit();
+}