I cannot get the string from QLineEdit->text()!

I have tried to get the text form QLineEdit but I always get "" empty string.

Here is my code:

Database.h

Code:

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#ifndef DATABASE_H
#define DATABASE_H
 
#include <QObject>
#include <QtSql>
#include <QtGui>
#include "MainWindow.h"
 
class Database : public QObject {
    Q_OBJECT
 
public:
    Database(QObject *parent = 0);
    ~Database();
 
    MainWindow *Gui;
 
private:
    // Search Bar
    void prepareList();
    void updateListWidget();
 
    // Records
    void setupDatabase();
    void setupModel();
    void setupMapper();
    void addMapping();
    void doSave();
 
 
public:
 
private:
    // Records
    QSqlDatabase recordsDB;
    QSqlQuery recordsQuery;
    QSqlTableModel *recordsModel;
    QDataWidgetMapper *recordsMapper;
 
    // Search Bar SQL Related Members
    QSqlDatabase searchDB;
    QSqlQuery searchQuery;
 
    QStringList namesList;
    QStringList iqamasList;
    QStringList passportsList;
 
    QStringList tempNamesList;
    QStringList tempIqamasList;
    QStringList tempPassportsList;
 
    // Misc.
    enum CurrentStatus {Browsing, Adding, Editing};
 
private slots:
    // Search Bar
    void filterLists(QString currentNumber);
    void resetForm();
    void saveRecord();
 
 
};
 
#endif // DATABASE_H

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See lines: 10, 18 & 23

Part of (Database.cpp)

Code:

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Database::Database(QObject *parent) : QObject(parent) {
    // The GUI
    Gui = new MainWindow;
    Gui->show();
 
    // Records
    setupDatabase();
    setupModel();
    setupMapper();
    //saveRecord(); from here I get the text normally.
 
    // Search Bar
    prepareList();
 
    // Search Button Connection
    connect(Gui->ui->leSearch, SIGNAL(textChanged(QString)), this, SLOT(filterLists(QString)));
    connect(Gui->ui->actionNew, SIGNAL(triggered()), this, SLOT(resetForm()));
    connect(Gui->ui->actionSave, SIGNAL(triggered()), this, SLOT(saveRecord())); // from here I cannot get the text, I just get empty string "".
} // Database(QObject *parent = 0)
 
// Slot
void Database::saveRecord() {
    // if i call this slot through a connection "connect() see line 18" all these QLineEdits return empty string but actually the are filled with information.
    QString voucherTypeEst = QString(Gui->ui->radioEst->isChecked());
    QString voucherTypeCo = QString(Gui->ui->radioCo->isChecked());
    QString voucherTypeGov = QString(Gui->ui->radioGov->isChecked());
    QString firstARName = Gui->ui->leARFirstName->text();
    QString firstENName = Gui->ui->leENFirstName->text();
    QString iqamaNumber = Gui->ui->leIqamaNumber->text();
    QString nationality = Gui->ui->leNationality->text();
    QString job = Gui->ui->leJob->text();
    QString religion = Gui->ui->leReligion->text();
    QString passportNumber = Gui->ui->lePassportNumber->text();
    QString issuePlace = Gui->ui->leIssuePlace->text();
    QString entranceNumber = Gui->ui->leEntryNumber->text();
    QString entrancePort = Gui->ui->leEntryPort->text();
    QString iqamaDate = Gui->ui->leIqamaExpiryDate->text();
    QString birthdayDate = Gui->ui->leBirthdayDate->text();
    QString passportIssueDate = Gui->ui->lePassportIssueDate->text();
    QString passportExpiryDate = Gui->ui->lePassportExpiryDate->text();
    QString entryDate = Gui->ui->leEntryDate->text();
    QString voucherTypeSng = QString(Gui->ui->radioSng->isChecked());
    QString voucherName = Gui->ui->leCurrentVoucherName->text();
    QString voucherNumber = Gui->ui->leCurrentVoucherNumber->text();
    QString voucherAddress = Gui->ui->leCurrentVoucherAddress->text();
    QString voucherPhone = Gui->ui->leCurrentVoucherPhone->text();
    QString fatherARName = Gui->ui->leARFatherName->text();
    QString grandARName = Gui->ui->leARGrandName->text();
    QString familyARName = Gui->ui->leARFamilyName->text();
    QString fatherENName = Gui->ui->leENFatherName->text();
    QString grandENName = Gui->ui->leENGrandName->text();
    QString familyENName = Gui->ui->leENFamilyName->text();
}

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