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dbase_cashier.cpp
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dbase_cashier.cpp
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#include "dbase_cashier.h"
#include <QSqlQuery>
#include <QSqlError>
#include <QSqlRecord>
#include <QDebug>
Dbase_Cashier::Dbase_Cashier(const QString &path)
{
db=QSqlDatabase::addDatabase("QSQLITE");
db.setDatabaseName(path);
if(!db.open())
{
qDebug()<<"Error:Connection with database";
}
else
{
qDebug()<<"Sucess:Connection with database";
}
}
Dbase_Cashier::~Dbase_Cashier()
{
if(db.open())
{
db.close();
}
}
bool Dbase_Cashier::isOpen() const
{
return db.isOpen();
}
bool Dbase_Cashier::cashierAuth(const QString &uname, const QString &pass) const
{
bool exists = false;
QSqlQuery checkQuery;
checkQuery.prepare("SELECT UserName FROM Cashier WHERE UserName =:uname AND Password = :pass");
checkQuery.bindValue(":uname", uname);
checkQuery.bindValue(":pass", pass);
if (checkQuery.exec()){
if (checkQuery.next()){
qDebug()<<"cashier exists";
exists = true;
}
}else{
qDebug()<<"cashier exists failed: " << checkQuery.lastError();
}
return exists;
}
void Dbase_Cashier::deleteCashier_Login()
{
QSqlQuery qry;
qry.prepare("DROP TABLE Cashier_Login");
if(qry.exec())
{
qDebug()<<"cashier_Login Table deleted";
}
else
{
qDebug()<<"Couldn't delete table";
}
}
QList<QString> Dbase_Cashier::getCashier_loginDetails()
{
QList<QString> cashierdetails;
QSqlQuery qry;
qry.prepare(QString("SELECT * FROM Cashier_Login"));
if(!qry.exec())
{
qDebug()<<"Error in retriving data"<<qry.lastError();
}
else
{
if(qry.next())
{
QString name=qry.value(0).toString();
QString username=qry.value(1).toString();
QString gender=qry.value(2).toString();
QString mobileno=qry.value(3).toString();
QString email=qry.value(4).toString();
QString passwd=qry.value(5).toString();
cashierdetails.push_front(name);
cashierdetails.push_front(username);
cashierdetails.push_front(gender);
cashierdetails.push_front(mobileno);
cashierdetails.push_front(email);
cashierdetails.push_front(passwd);
}
else
{
qDebug()<<"not executing qyery";
}
}
return cashierdetails;
}
QList<QString> Dbase_Cashier::getComDetails()
{
QList<QString> companydetails;
QSqlQuery qry;
qry.prepare(QString("SELECT * FROM Company"));
if(!qry.exec())
{
qDebug()<<"Error in retriving data"<<qry.lastError();
}
else
{
if(qry.next())
{
QString name=qry.value(0).toString();
QString vat=qry.value(1).toString();
QString phone=qry.value(2).toString();
QString address=qry.value(3).toString();
QString email=qry.value(4).toString();
QString website=qry.value(5).toString();
companydetails.push_front(name);
companydetails.push_front(vat);
companydetails.push_front(phone);
companydetails.push_front(address);
companydetails.push_front(email);
companydetails.push_front(website);
}
else
{
qDebug()<<"not executing qyery";
}
}
return companydetails;
}
bool Dbase_Cashier::validProduct(QString &id)
{
QSqlQuery qry;
qry.prepare("SELECT * FROM Product WHERE ID=:id");
qry.bindValue(":id",id);
if(qry.exec())
{
if(qry.next()){
return true;}
}
else
{
return false;
}
}
bool Dbase_Cashier::validCashier(QString &username,QString &opassword)
{
QSqlQuery qry;
qry.prepare("SELECT * FROM Cashier_Login WHERE UserName=:uname AND Password=:password");
qry.bindValue(":uname",username);
qry.bindValue(":password",opassword);
if(qry.exec())
{
return true;
}
else
{
return false;
}
}
void Dbase_Cashier::updateCashier(QString &username,QString &opassword)
{
QSqlQuery qry;
qry.prepare("UPDATE Cashier SET Password=:password WHERE UserName=:uname");
qry.bindValue(":password",opassword);
qry.bindValue(":uname",username);
qry.exec();
}
void Dbase_Cashier::createBillTable()
{
QSqlQuery qry;
qry.prepare("CREATE TABLE Bill(ID TEXT,Name TEXT,Rate REAL,Quantity INT,Amount REAL)");
if (!qry.exec())
{
qDebug() <<"Couldn't create Table,one might already exist";
}
else
{
qDebug()<<"Create table";
}
}
QList<QString> Dbase_Cashier::getProductDetails(const QString &id)
{
QList<QString> productdetails;
QSqlQuery qry;
qry.prepare(QString("SELECT * FROM Product WHERE ID=:id"));
qry.bindValue(":id",id);
if(!qry.exec())
{
qDebug()<<"Error in retriving data"<<qry.lastError();
}
else
{
if(qry.next())
{
QString id=qry.value(0).toString();
QString name=qry.value(1).toString();
QString category=qry.value(2).toString();
QString price=qry.value(3).toString();
productdetails.push_front(id);
productdetails.push_front(name);
productdetails.push_front(category);
productdetails.push_front(price);
}
else
{
qDebug()<<"not executing qyery";
}
}
return productdetails;
}
bool Dbase_Cashier::addProduct(const QString &id, const QString &name, const int &quantity, const double &rate, const double &amount)
{
bool sucess=false;
QSqlQuery qry;
qry.prepare("INSERT INTO Bill(ID,Name,Quantity,Rate,Amount) VALUES (:id,:name,:quantity,:rate,:amount)");
qry.bindValue(":id",id);
qry.bindValue(":name",name);
qry.bindValue(":quantity",quantity);
qry.bindValue(":rate",rate);
qry.bindValue(":amount",amount);
if(!qry.exec())
{
qDebug()<<"Add Details Failed"<<qry.lastError();
sucess=false;
}
else
{
qDebug()<<"Details added Sucessfully";
sucess=true;
}
return sucess;
}
bool Dbase_Cashier::product_IdExists(const QString &id)
{
QSqlQuery qry;
qry.prepare("SELECT * FROM Bill WHERE ID=:id");
qry.bindValue(":id",id);
if(qry.exec())
{
if(qry.next())
{
qDebug()<<"ID exists";
return true;
}
}
else
{
qDebug()<<"ID doesn't exist";
return false;
}
}
void Dbase_Cashier::deleteBillTable()
{
QSqlQuery qry;
qry.prepare("DROP TABLE Bill");
qry.exec();
}
QList<QString> Dbase_Cashier::getAmount()
{
QList<QString> amountdetails;
QSqlQuery qry;
qry.prepare(QString("SELECT Amount FROM Bill"));
if(!qry.exec())
{
qDebug()<<"Error in retriving data"<<qry.lastError();
}
else
{
while(qry.next())
{
QString a=qry.value(0).toString();
amountdetails.push_front(a);
}
}
qDebug()<<amountdetails.count();
return amountdetails;
}
void Dbase_Cashier::createHistoryTable()
{
QSqlQuery qry;
qry.prepare("CREATE TABLE `History` ( `Bill` INTEGER NOT NULL , `Date` TEXT, `Amount` REAL, `Cashier` TEXT, PRIMARY KEY(`Bill`) )");
if (!qry.exec())
{
qDebug() <<"Couldn't create Table,one might already exist";
}
else
{
qDebug()<<"Create table";
}
}
bool Dbase_Cashier::addHistory( const QString &date, const double &billamount, const QString &cashier)
{
bool sucess=false;
QSqlQuery qry;
qry.prepare("INSERT INTO History(Date,Amount,Cashier) VALUES (:date,:billamount,:cashier)");
qry.bindValue(":date",date);
qry.bindValue(":billamount",billamount);
qry.bindValue(":cashier",cashier);
if(!qry.exec())
{
qDebug()<<"Add Details Failed"<<qry.lastError();
sucess=false;
}
else
{
qDebug()<<"Details added Sucessfully";
sucess=true;
}
return sucess;
}
int Dbase_Cashier::getBillNo()
{
int billno;
QSqlQuery qry;
qry.prepare("SELECT * FROM History");
if(qry.exec())
{
if(qry.last())
{
billno=qry.value(0).toInt();
}
else
{
return 0;
}
}
return billno+1;
}