Optimized loading of vouchers for Paid Vouchers Dialog.

shop/data/voucher.h

@@ -9,6 +9,7 @@
 #include <season.h>
 #include <odb/core.hxx>
 #include <odb/qt/list.hxx>
+#include <odb/section.hxx>
 
 #include "voucheritem.h"
 
@@ -171,6 +172,9 @@ public:
     QDateTime updated() const;
     void setUpdated(const QDateTime &updated);
 
+#pragma db load(lazy)
+    odb::section m_itemsSection;
+
 private:
     friend class odb::access;
 #pragma db id auto
@@ -198,7 +202,7 @@ private:
     QString m_eetPkp;
     QString m_eetBkp;
     QString m_eetFik;
-    #pragma db value_not_null inverse(m_voucher)
+#pragma db value_not_null inverse(m_voucher) section(m_itemsSection)
     QOdbList<QSharedPointer<VoucherItem> > m_items;
     VoucherStatus m_status;
     SeasonPtr m_season;

shop/paydvouchersdialog.cpp

@@ -2,7 +2,7 @@
 #include "ui_paydvouchersdialog.h"
 
 #include <QFileDialog>
-#include <QScroller>
+#include <QScrollBar>
 
 #include "receiptgenerator.h"
 #include "shopservice.h"
@@ -47,13 +47,12 @@ PaydVouchersDialog::PaydVouchersDialog(QWidget *parent) :
 
     ui->tableItems->horizontalHeader()->setSectionResizeMode(1, QHeaderView::Stretch);
     ui->tableItems->setColumnHidden(0, true);
+    ui->tableItems->verticalScrollBar()->setStyleSheet("QScrollBar:vertical { width: 30px; }");
 
     ShopService srv;
     m_voucherModel->setData(srv.paiedVouchers());
     ui->tableVouchers->sortByColumn(0,Qt::AscendingOrder);
-
-    QScroller::grabGesture(ui->tableVouchers, QScroller::LeftMouseButtonGesture);
-    QScroller::grabGesture(ui->tableItems, QScroller::LeftMouseButtonGesture);
+    ui->tableVouchers->verticalScrollBar()->setStyleSheet("QScrollBar:vertical { width: 30px; }");
 
     connect(ui->tableVouchers->selectionModel(), &QItemSelectionModel::currentRowChanged, [this, &srv](const QModelIndex &current, const QModelIndex &) {
         QSharedPointer<Voucher> voucher = m_voucherModel->itemFromIndex(current);