Current items can be deleted by passing the UUID to the deleteItemFromServer signal.

genericcore.cpp

@@ -168,6 +168,14 @@ void GenericCore::onPostRequestFailure(const QString errorString) {
   emit displayStatusMessage(QString("Error: %1").arg(errorString));
 }
 
+void GenericCore::onDeleteRequestSuccessful(const QByteArray responseData) {
+  qWarning() << "TODO: Process success response!!!";
+}
+
+void GenericCore::onDeleteRequestFailure(const QString errorString) {
+  qWarning() << "TODO: Process error response!!!";
+}
+
 void GenericCore::setupModels() {
   m_mainModel       = make_shared<TableModel>(m_modelUndoStack, this);
   m_sortFilterModel = make_shared<GeneralSortFilterModel>(m_mainModel);
@@ -231,6 +239,8 @@ void GenericCore::setupServerConfiguration() {
   connect(this, &GenericCore::fetchItemsFromServer, m_serverCommunicator.get(),
           &ServerCommunicator::fetchItems);
   connect(this, &GenericCore::postItemToServer, this, &GenericCore::onSendItemTriggered);
+  connect(this, &GenericCore::deleteItemFromServer, m_serverCommunicator.get(),
+          &ServerCommunicator::deleteItem);
 
   /// response connections
   connect(m_serverCommunicator.get(), &ServerCommunicator::itemsFetched, this,
@@ -241,6 +251,10 @@ void GenericCore::setupServerConfiguration() {
           &GenericCore::onPostRequestSuccessful);
   connect(m_serverCommunicator.get(), &ServerCommunicator::postRequestFailure, this,
           &GenericCore::onPostRequestFailure);
+  connect(m_serverCommunicator.get(), &ServerCommunicator::deleteRequestSuccessful, this,
+          &GenericCore::onDeleteRequestSuccessful);
+  connect(m_serverCommunicator.get(), &ServerCommunicator::deleteRequestFailure, this,
+          &GenericCore::onDeleteRequestFailure);
 
   /// fetching/posting items on startup to test the communication with the server
   // m_serverCommunicator->fetchItems();

genericcore.h

@@ -41,11 +41,14 @@ class GenericCore : public QObject {
   void onItemsFetchFailure(const QString errorString);
   void onPostRequestSuccessful(const QByteArray responseData);
   void onPostRequestFailure(const QString errorString);
+  void onDeleteRequestSuccessful(const QByteArray responseData);
+  void onDeleteRequestFailure(const QString errorString);
 
  signals:
   void displayStatusMessage(QString message);
   void fetchItemsFromServer();
   void postItemToServer(const QByteArray& jsonData);
+  void deleteItemFromServer(const QString& id);
 
  private:
   QUndoStack* m_modelUndoStack;

model/tablemodel.cpp

@@ -202,7 +202,6 @@ QString TableModel::updateItemsFromJson(const QByteArray& jsonData) {
     QMap<int, QVariant> roles = valueList.first();
     setItemData(foundIndex, roles);
     /// return status what happened in this function (i. e. "Created x items, updated y items.")
-    // return data(foundIndex, ToStringRole).toString();
     return QString("Item found at row %1.").arg(foundIndex.row());
   }
 }

network/servercommunicator.cpp

@@ -77,3 +77,22 @@ void ServerCommunicator::postItems(const QByteArray& jsonData) {
     reply->deleteLater();
   });
 }
+
+void ServerCommunicator::deleteItem(const QString& id) {
+  const QString deleteRoute = QString("%1/%2").arg(ROUTE_ITEMS, id);
+  QNetworkReply* reply = m_restManager->deleteResource(m_serviceApi->createRequest(deleteRoute));
+
+  QObject::connect(reply, &QNetworkReply::finished, [=]() {
+    if (reply->error() == QNetworkReply::NoError) {
+      QByteArray responseData = reply->readAll();
+      const QString message   = QString("DELETE successful! Response: %1").arg(responseData);
+      qInfo() << message;
+      emit deleteRequestSuccessful(responseData);
+    } else {
+      const QString message = QString("Error: %1").arg(reply->errorString());
+      qDebug() << message;
+      emit deleteRequestFailure(message);
+    }
+    reply->deleteLater();
+  });
+}

network/servercommunicator.h

@@ -19,7 +19,7 @@ class ServerCommunicator : public QObject {
  public slots:
   void fetchItems();
   void postItems(const QByteArray& jsonData);
-  // NEXT void deleteItems(QList<QString> idList)
+  void deleteItem(const QString& id);
 
  signals:
   void urlChanged();
@@ -28,6 +28,8 @@ class ServerCommunicator : public QObject {
   void itemsFetchFailure(const QString errorString);
   void postRequestSuccessful(const QByteArray responseData);
   void postRequestFailure(const QString errorString);
+  void deleteRequestSuccessful(const QByteArray responseData);
+  void deleteRequestFailure(const QString errorString);
 
  private:
   QNetworkAccessManager m_netManager;