Why does the following code:
Qt Code: 
  1. CBrowserWindow::CBrowserWindow(QWidget *parent, CDatabaseFoundation* pDatabase, QString sTableName, QString windowCaption)
  2.  : QDialog(parent)
  3. {
  4.   m_pModel=new QSqlRelationalTableModel(parent);  // creates new model
  5.   Q_CHECK_PTR(m_pModel);  // checks for succesful creation
  6.   m_pModel->setTable(sTableName); // sets table name
  7.  
  8.   m_pColumnNames=new QStringList(); // creates new string list
  9.   Q_CHECK_PTR(m_pColumnNames);  // checks for succesful creation
  10.  
  11.   // fetches record
  12.   m_pTableRecord=new QSqlRecord(); // creates new record
  13.   Q_CHECK_PTR(m_pTableRecord);  // checks for susccesful creation
  14.   m_pTableRecord=&pDatabase->m_Database.record(sTableName); // fetches column names
  15.   QSqlRecord tempRec=pDatabase->m_Database.record(sTableName); // fetches column names
  16.   m_pTableRecord=new QSqlRecord(tempRec); // read column names
  17.   Q_CHECK_PTR(m_pTableRecord);
  18.  
  19.   if (!m_pTableRecord->isEmpty()) {
  20.     for (m_iIndex=0; m_iIndex<m_pTableRecord->count(); m_iIndex++) {
  21.       m_pColumnNames->append(m_pTableRecord->fieldName(m_iIndex));
  22.     }
  23.   } // if
  24.  
  25.   createBrowserContens(this, pDatabase, m_pColumnNames);  // creates browser controls
  26.  
  27.   setWindowTitle(windowCaption);  // sets window title
  28.  
  29. /*
  30.   delete m_pModel;  // deletes pModel;
  31.   delete m_pTableRecord;  // deletes m_pTableRecord
  32.   // just to be sure
  33.   m_pModel=0;
  34.   m_pTableRecord=0;
  35. */
  36. }
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Here is also createBrowserContens(..):
Qt Code: 
  1. void CBrowserWindow::createBrowserContens(QWidget* pParent, CDatabaseFoundation* pDatabase, QStringList* pColumnNames) {
  2.   m_pHorizLayout=new QHBoxLayout();
  3.   Q_CHECK_PTR(m_pHorizLayout);  // chechks creation of horiz layout
  4.   m_pVertLayout=new QVBoxLayout();
  5.   Q_CHECK_PTR(m_pVertLayout);  // checks creation of vertical layout
  6.  
  7.   m_pView=new QTableView(this);
  8.   Q_CHECK_PTR(m_pView); // checks creation of view
  9.  
  10.   for(m_iIndex=0; m_iIndex<pColumnNames->count(); m_iIndex++) {
  11.     pDatabase->m_pModel->setHeaderData(m_iIndex, Qt::Horizontal, m_pColumnNames->at(m_iIndex)); // sets column names
  12.     qDebug() << m_iIndex << ": " << m_pColumnNames->at(m_iIndex);
  13.     //pView->showColumn(m_iIndex);  // shows the selected column
  14.   }
  15.  
  16.   m_pView->setModel(pDatabase->m_pModel); // sets model
  17.   m_pView->setItemDelegate(new QSqlRelationalDelegate(m_pView));
  18.  
  19.   m_pButtonAdd=new QPushButton(QObject::trUtf8("Dodaj"));
  20.   Q_CHECK_PTR(m_pButtonAdd);  // checks creation of pushbutton
  21.  
  22.   m_pButtonChange=new QPushButton(QObject::trUtf8("Spremeni"));
  23.   Q_CHECK_PTR(m_pButtonChange);  // checks creation of pushbutton
  24.  
  25.   m_pButtonDelete=new QPushButton(QObject::trUtf8("Briši"));
  26.   Q_CHECK_PTR(m_pButtonDelete);  // checks creation of pushbutton
  27.  
  28.   m_pButtonClose=new QPushButton(QObject::trUtf8("Zapri"));
  29.   Q_CHECK_PTR(m_pButtonClose);
  30.  
  31.   // leyout setup
  32.   m_pHorizLayout->addWidget(m_pButtonAdd);
  33.   m_pHorizLayout->addWidget(m_pButtonChange);
  34.   m_pHorizLayout->addWidget(m_pButtonDelete);
  35.   m_pHorizLayout->addWidget(m_pButtonClose);
  36.  
  37.   m_pVertLayout->addWidget(m_pView);
  38.  
  39.   m_pVertLayout->addLayout(m_pHorizLayout);
  40.  
  41.   pParent->setLayout(m_pVertLayout);
  42.  
  43.   // button connectors
  44.   connect(m_pButtonClose, SIGNAL(clicked()), this, SLOT(close()));
  45. }
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does NOT display data fields in window??