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customsqlmodel.cpp Example File
sql/querymodel/customsqlmodel.cpp

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 #include <QtGui>

 #include "customsqlmodel.h"

 CustomSqlModel::CustomSqlModel(QObject *parent)
     : QSqlQueryModel(parent)
 {
 }

 QVariant CustomSqlModel::data(const QModelIndex &index, int role) const
 {
     QVariant value = QSqlQueryModel::data(index, role);
     if (value.isValid() && role == Qt::DisplayRole) {
         if (index.column() == 0)
             return value.toString().prepend("#");
         else if (index.column() == 2)
             return value.toString().toUpper();
     }
     if (role == Qt::TextColorRole && index.column() == 1)
         return qVariantFromValue(QColor(Qt::blue));
     return value;
 }