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mainwindow.cpp
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mainwindow.cpp
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#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
Dbase db("SBS.db");
if (db.isOpen())
{
if(!db.getAdminInfo())
{
//give information to register admin
ui->mainStack->setCurrentIndex(1);
}
else
{
ui->mainStack->setCurrentIndex(2);
}
}
}
MainWindow::~MainWindow()
{
delete ui;
}
bool isEmpty(QString obj)
{
if(obj=="" || obj==" ") return true;
else return false;
}
void MainWindow :: showError(MainWindow* window,QString error)
{
QMessageBox::warning(window,"Error!!",error);
}
void MainWindow::on_registerButton_2_clicked()
{
//Connect to database and register Admin user
//extract text from ui
QString fname=ui->firstName->text();
QString lname=ui->lastName->text();
QString username=ui->userName->text();
QString mobileno=ui->mobileNum->text();
QString email=ui->eMail->text();
QString passwd=ui->getPass->text();
QString confirm_passwd=ui->conPass->text();
//check Data Validation
if(isEmpty(fname)) showError(this,"Specify your First Name");
else if(isEmpty(lname)) showError(this,"Specify your Last Name");
else if(isEmpty(username)) showError(this,"Enter your Username");
else if(isEmpty(mobileno)) showError(this,"Specify your Mobile Number");
else if(isEmpty(email)) showError(this,"Specify your E-mail");
else if(isEmpty(passwd)) showError(this,"Enter your Password");
else if(isEmpty(confirm_passwd)) showError(this,"Confirm your Password");
//if all data are valid, now confirm the password
else if(!(passwd==confirm_passwd))
{
showError(this,"Password doesnot match");
}
else
{
//connect to database
Dbase db("SBS.db");
if(db.isOpen())
{
//Store Data to Database
qDebug()<<"connected to database";
db.createTable();
if (db.unameExists(username))
{
showError(this,"Username already taken");
}
else if(db.emailExists(email))
{
//email already taken
showError(this,"Email Already taken");
}
else
{
if(db.addAdmin(fname,lname,username,mobileno,email,passwd))
{
QMessageBox::information(this,"Registration","Registered Sucessful");
//clear all
ui->firstName->setText("");
ui->lastName->setText("");
ui->userName->setText("");
ui->mobileNum->setText("");
ui->eMail->setText("");
ui->getPass->setText("");
ui->conPass->setText("");
ui->mainStack->setCurrentIndex(2);
}
else
{
QMessageBox::information(this,"Registration","Registered Unsucessful");
}
}
}
}
}
void MainWindow::on_loginButton_2_clicked()
{
Dbase db("SBS.db");
QString uname=ui->login_username->text();
QString passwd=ui->login_password->text();
if(db.userAuth(uname,passwd))
{
db.deleteAdmin_Login();
db.createAdmin_LoginTable();
db.addAdmin_Login(uname);
//clear login page password
ui->login_password->setText("");
//show admin window
adminwindow=new AdminWindow(this);
// mainwindow->hide();
this->hide();
adminwindow->show();
}
else if(db.cashierAuth(uname,passwd))
{
db.deleteCashier_Login();
db.createCashier_LoginTable();
db.addCashier_Login(uname);
//clear login page password
ui->login_password->setText("");
//show cashier window
cashierwindow=new CashierWindow(this);
// mainwindow->hide();
this->hide();
cashierwindow->show();
}
else
{
QMessageBox::information(this,"Login","Incorrect UserName or Password");
ui->login_password->setText("");
}
}