more on deleting sellers (not yet ok!)

src/core/marketplace.cpp

@@ -32,4 +32,10 @@ int Marketplace::getNextSellerNo()
             return a->getSellerNo() < b->getSellerNo();
         });
     return (*iter)->getSellerNo() + 1;
+}
+
+int Marketplace::getNumSellersDelete()
+{
+    int count = std::count_if(sellers_.begin(), sellers_.end(), [](const auto& a){return a->getState() == Seller::State::DELETE;});
+    return count;
 }

src/core/marketplace.h

@@ -15,6 +15,7 @@ class Marketplace
     void loadFromDb();
     std::vector<std::unique_ptr<Seller>>& getSellers();
     int getNextSellerNo();
+    int getNumSellersDelete();
 
   private:
     std::vector<std::unique_ptr<Seller>> sellers_;

src/gui/sellerdialog.cpp

@@ -2,6 +2,7 @@
 
 #include "mainwindow.h"
 
+#include <QItemSelectionModel>
 #include <QMessageBox>
 
 SellerDialog::SellerDialog(QWidget* parent, Qt::WindowFlags f) : QDialog(parent, f)
@@ -12,13 +13,33 @@ SellerDialog::SellerDialog(QWidget* parent, Qt::WindowFlags f) : QDialog(parent,
     ui_.tableView->setModel(model);
     ui_.tableView->setColumnHidden(0, true); // hide the uuid
     connect(ui_.newButton, &QPushButton::clicked, this, &SellerDialog::on_newButton_clicked);
+    connect(ui_.deleteButton, &QPushButton::clicked, this, &SellerDialog::on_deleteButton_clicked);
 }
 
 void SellerDialog::on_newButton_clicked()
 {
+    ui_.tableView->reset();
     ui_.tableView->model()->insertRows(ui_.tableView->model()->rowCount(), 1);
     ui_.tableView->scrollToBottom();
     ui_.tableView->selectRow(ui_.tableView->model()->rowCount() - 1);
+    QModelIndex idx = ui_.tableView->model()->index(ui_.tableView->model()->rowCount() - 1, 2);
+    ui_.tableView->setCurrentIndex(idx);
+    ui_.tableView->edit(idx);
+}
+
+void SellerDialog::on_deleteButton_clicked()
+{
+    auto selModel = ui_.tableView->selectionModel();
+    if (selModel->hasSelection() == false)
+        return;
+    auto indexes = selModel->selectedRows();
+    
+    std::sort(indexes.begin(), indexes.end());
+
+    // Deleting the rows, beginning with the last one!
+    for (auto iter = indexes.constEnd() - 1; iter >= indexes.constBegin(); --iter) {
+        ui_.tableView->model()->removeRow(iter->row());
+    }
 }
 
 void SellerDialog::accept()
@@ -28,7 +49,8 @@ void SellerDialog::accept()
         if (seller->getFirstName().empty() || seller->getLastName().empty()) {
             QMessageBox(QMessageBox::Icon::Critical, "Fehler",
                         "Bitte geben Sie bei jedem Verkäufer Vorname und Nachname an.",
-                        QMessageBox::StandardButton::Ok, this).exec();
+                        QMessageBox::StandardButton::Ok, this)
+                .exec();
             return;
         }
     }

src/gui/sellerdialog.h

@@ -17,6 +17,7 @@ class SellerDialog : public QDialog
 
   private:
     void on_newButton_clicked();
+    void on_deleteButton_clicked();
     virtual void accept() override;
     Ui::SellerDialog ui_;
 };

src/gui/sellerdialog.ui

@@ -39,6 +39,9 @@
        <property name="sizeAdjustPolicy">
         <enum>QAbstractScrollArea::AdjustToContents</enum>
        </property>
+       <property name="selectionBehavior">
+        <enum>QAbstractItemView::SelectRows</enum>
+       </property>
       </widget>
      </item>
      <item>
@@ -52,6 +55,9 @@
        </item>
        <item>
         <widget class="QPushButton" name="editButton">
+         <property name="enabled">
+          <bool>false</bool>
+         </property>
          <property name="text">
           <string>Bearbeiten</string>
          </property>

src/gui/sellermodel.cpp

@@ -23,9 +23,9 @@ QVariant SellerModel::data(const QModelIndex& index, int role) const
 
     Seller* seller = marketplace_->getSellers().at(index.row()).get();
 
-    if (seller->getState() == Seller::State::DELETE)
+/*     if (seller->getState() == Seller::State::DELETE)
-        return QVariant::Invalid;
+        return QVariant();
-
+ */
     switch (index.column()) {
     case 0:
         return seller->getUuidAsString().c_str();
@@ -129,4 +129,23 @@ bool SellerModel::insertRows(int row, int count, const QModelIndex& parent)
     emit endInsertRows();
 
     return true;
+}
+
+bool SellerModel::removeRows(int row, int count, const QModelIndex& parent)
+{
+    emit beginRemoveRows(parent, row, row + count - 1);
+    auto seller = marketplace_->getSellers().at(row).get();
+    if (seller->getState() == Seller::State::NEW) {
+        marketplace_->getSellers().erase(
+            std::remove_if(marketplace_->getSellers().begin(), marketplace_->getSellers().end(),
+                           [&seller](const std::unique_ptr<Seller>& a) {
+                               return a->getUuid() == seller->getUuid();
+                           }),
+            marketplace_->getSellers().end());
+    } else {
+        seller->setState(Seller::State::DELETE);
+    }
+    emit endRemoveRows();
+
+    return false;
 }

src/gui/sellermodel.h

@@ -16,6 +16,7 @@ class SellerModel : public QAbstractTableModel
     virtual Qt::ItemFlags flags(const QModelIndex& index) const override;
     virtual bool setData(const QModelIndex& index, const QVariant& value, int role = Qt::EditRole);
     virtual bool insertRows(int row, int count, const QModelIndex& parent = QModelIndex()) override;
+    virtual bool removeRows(int row, int count, const QModelIndex& parent = QModelIndex()) override;
 
   private:
     Marketplace* marketplace_;