Show those TODO message also when using the toolbar or the popup menu

This should let the user know that something's not working instead of
offering him a not working dialog and winding him up this way. That
should make the behaviour of the program much easier to understand.

src/MainWindow.cpp

@@ -1217,20 +1217,26 @@ void MainWindow::on_add_field(){
     }
 }
 void MainWindow::on_edit_field(){
-    if( !ui->dbTreeWidget->currentItem() ){
+    if(!ui->dbTreeWidget->currentItem())
         return;
-    }
-    QTreeWidgetItem *item = ui->dbTreeWidget->currentItem();
+
+    // TODO
+    QMessageBox::information(this, QApplication::applicationName(), tr("Sorry! This function is currently not implemented as SQLite does not support editing columns yet."));
+    /*QTreeWidgetItem *item = ui->dbTreeWidget->currentItem();
     editFieldForm *fieldForm = new editFieldForm( this );
     fieldForm->setInitialValues(&db, false, item->parent()->text(0), item->text(0), item->text(2));
     if (fieldForm->exec())
     {
-        //modified = true;
-        //do the sql rename here
-        //qDebug(fieldForm->name + fieldForm->type);
         item->setText(0,fieldForm->field_name);
         item->setText(2,fieldForm->field_type);
-    }
+    }*/
+}
+void MainWindow::on_delete_field(){
+    if(!ui->dbTreeWidget->currentItem())
+        return;
+
+    // TODO
+    QMessageBox::information(this, QApplication::applicationName(), tr("Sorry! This function is currently not implemented as SQLite does not support the deletion of columns yet."));
 }
 
 void MainWindow::openRecentFile()

src/MainWindow.h

@@ -68,6 +68,7 @@ public slots:
     virtual void on_tree_selection_changed();
     virtual void on_add_field();
     virtual void on_edit_field();
+    virtual void on_delete_field();
 
     virtual void fileOpen( const QString & fileName );
     virtual void fileOpen();

src/MainWindow.ui

@@ -1483,6 +1483,22 @@
     </hint>
    </hints>
   </connection>
+  <connection>
+   <sender>editDeleteFieldActionPopup</sender>
+   <signal>activated()</signal>
+   <receiver>MainWindow</receiver>
+   <slot>on_delete_field()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>399</x>
+     <y>299</y>
+    </hint>
+   </hints>
+  </connection>
  </connections>
  <slots>
   <slot>fileOpen()</slot>
@@ -1512,7 +1528,6 @@
   <slot>createTable()</slot>
   <slot>deleteTable()</slot>
   <slot>editTable()</slot>
-  <slot>deleteTablePopup()</slot>
   <slot>editTablePopup()</slot>
   <slot>on_add_field()</slot>
   <slot>on_edit_field()</slot>
@@ -1523,5 +1538,6 @@
   <slot>on_tree_selection_changed()</slot>
   <slot>fileNew()</slot>
   <slot>helpAbout()</slot>
+  <slot>on_delete_field()</slot>
  </slots>
 </ui>