QTableView QTablemodel & insertRow

Hi,

I want to show Data from a Relational DB in a QTableView.
This work fine, also the editing about OnManualSubmit works. Now I want to add and delete Rows in the QTableView. When I tray to add a row an error occurs:

Segmentation fault (core dumped)
*** Exited with status: 139 ***

What does this error means?

I think its a memory lack but I don't know what to do?
I work on Ubuntu Feisty, QT 4.2.3, KDevelop 3.4

Code:

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#include <QtGui> 
#include <QtSql> 
#include <QDebug> 
#include "tablemodel.h" 
 
tableModel::tableModel() 
{ 
 
   QPushButton *submitPb = new QPushButton(QObject::trUtf8("Änderungen speichern")); 
   QPushButton *revertPb = new QPushButton(QObject::trUtf8("Änderungen verwerfen")); 
   QPushButton *addPb = new QPushButton(QObject::trUtf8("Neue Person")); 
   QPushButton *deletePb = new QPushButton(QObject::trUtf8("Lösche Person")); 
 
   QSqlRelationalTableModel *model = new QSqlRelationalTableModel(this); 
   model->setTable("tx_submission_data"); 
   model->setRelation(28,QSqlRelation("tx_submission_epterm","uid", "epterm")); 
   model->setRelation(29,QSqlRelation("tx_submission_status","uid", "status")); 
   model->setRelation(30,QSqlRelation("tx_submission_status","uid", "status")); 
   model->setRelation(31,QSqlRelation("tx_submission_status","uid", "status")); 
   model->setRelation(32,QSqlRelation("tx_submission_status","uid", "status")); 
   model->setRelation(33,QSqlRelation("tx_submission_status","uid", "status")); 
   model->setRelation(34,QSqlRelation("tx_submission_status","uid", "status")); 
   model->setEditStrategy(QSqlTableModel::OnManualSubmit); 
 
 
   model->removeColumns(1,7); 
   model->removeColumn(5); 
   model->removeColumn(6); 
   model->removeColumn(6); 
   model->removeColumn(6); 
   model->removeColumn(7); 
   model->removeColumn(7); 
   model->removeColumn(7); 
   model->removeColumn(7); 
   model->removeColumn(7); 
   model->removeColumn(7); 
   model->removeColumn(7); 
   model->removeColumn(8); 
   model->removeColumn(11); 
 
   model->select(); 
 
   QTableView *viewTable = new QTableView; 
   viewTable->setModel(model); 
   viewTable->setItemDelegate(new QSqlRelationalDelegate(this)); 
   viewTable->setSortingEnabled(TRUE); 
   viewTable->setAlternatingRowColors(TRUE); 
   //viewTable->hideColumn(0);    
   viewTable->setSelectionMode(QAbstractItemView::SingleSelection); 
   viewTable->setSelectionBehavior(QAbstractItemView::SelectRows); 
   viewTable->resizeColumnsToContents(); 
 
   connect(submitPb, SIGNAL(clicked(bool)), model, SLOT(submitAll()) ); 
   connect(revertPb, SIGNAL(clicked(bool)), model, SLOT(revertAll() ) ); 
 
   connect(addPb, SIGNAL(clicked(bool)), this, SLOT(addPerson() ) ); 
   connect(deletePb, SIGNAL(clicked(bool)), this, SLOT(deletePerson() ) ); 
 
   QGridLayout *lay = new QGridLayout(this); 
   lay->addWidget(viewTable, 0, 0, 1, 4); 
   lay->addWidget(submitPb, 1, 0); 
   lay->addWidget(revertPb, 1, 1); 
   lay->addWidget(addPb, 1, 2); 
   lay->addWidget(deletePb, 1, 3); 
 
   // CSS 
   qApp->setStyleSheet("QTableView {background-color: #eeeeee; background-image: url(:/bg.png); color: blue;}"); 
} 
 
void tableModel::addPerson() 
{ 
   int row = model->rowCount();
	model->insertRow(row);
	QModelIndex index = model->index(row, Person_Name);
	viewTable->setCurrentIndex(index);
	viewTable->edit(index);
 
   QMessageBox::warning(this, trUtf8("Person hinzufügen"), trUtf8("Sie müssen alle Felder ausfüllen!") ); 
} 
 
void tableModel::deletePerson() 
{ 
 
} 
 
 
 
tableModel::~tableModel() 
{ 
 
}

---

Person_Name = 1 (Column with persons name)

Could you not just do :

Code:

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int row = model->rowCount();
QModelIndex index = model->index(row, Person_Name);
beginInsertRows(index, row, row );
 
// insert your data
 
endInsertRows();

---

Regards,
Steve

Found solution:

Code:

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QTableView *viewTable = new QTableView;

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doesn't work but:

Code:

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viewTable = new QTableView;

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because I defined this in header...:o

Thanks for the Code steg90 this is a good way too.