[solved]My SqlModel and refresh view

[Hostel]

I have a model - yes is not very elegant but I need class like this:

class MySqlModel : public QAbstractTableModel
{
public:
/*
there are all methods needed by model like
rowCount, columnCount, data ...
*/
 
bool insert( const QSqlRecord& rec );
 
protected:
      QSqlQueryModel* model;
      QSqlQuery* query;
}

class MySqlModel : public QAbstractTableModel
{
public:
/*
there are all methods needed by model like
rowCount, columnCount, data ...
*/

bool insert( const QSqlRecord& rec );

protected:
      QSqlQueryModel* model;
      QSqlQuery* query;
}

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All methods are redirect to model like:

int MySqlModel::rowCount(const QModelIndex &parent) const
{
    return model->rowCount();
}

int MySqlModel::rowCount(const QModelIndex &parent) const
{
    return model->rowCount();
}

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I'm making insert to table by method which looks like that:

bool MySqlModel::insert( const QSqlRecord& rec )
{
      query->prepare( insertQuery );
      if( query->exec() )
      {
 
            // here I want to refresh a view
            // I remove this -> emit dataChanged( QModelIndex(), QModelIndex() ); // nothing happens :(
 
            // this methods resolved my issue
            beginInsertRows( QModelIndex(), 0, 0 );
            endInsertRows();
      }
}

bool MySqlModel::insert( const QSqlRecord& rec )
{
      query->prepare( insertQuery );
      if( query->exec() )
      {
          
            // here I want to refresh a view
            // I remove this -> emit dataChanged( QModelIndex(), QModelIndex() ); // nothing happens :(

            // this methods resolved my issue
            beginInsertRows( QModelIndex(), 0, 0 );
            endInsertRows();
      }
}

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How I should update view? I create view like this:

view->setModel( model ); // model it is MySqlModel and data are in view after this operation - view is a standard QTableView

view->setModel( model ); // model it is MySqlModel and data are in view after this operation - view is a standard QTableView

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Solution I describe in listening with insert method.