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glavniprozor.cpp
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#include "glavniprozor.h"
#include "ui_glavniprozor.h"
#include "baza.h"
#include "connection.h"
#include <QMessageBox>
#include <QSqlDatabase>
#include <QSqlError>
#include <QSqlQuery>
#include <QtGui>
#include <QtSql>
#include <QTableView>
#include <QModelIndex>
#include <QApplication>
GlavniProzor::GlavniProzor(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::GlavniProzor)
{
ui->setupUi(this);
//otvara bazu podataka
QString path = "";
path=QApplication::applicationDirPath();
createConnection(path);
//Inicijalizacija suèelja
ui->frame_3->hide();
ui->frame_4->hide();
ui->frame_5->hide();
ui->frame_6->hide();
//ispuni formular podacima iz baze
ispuniTablicuView("SELECT * from knjiga",ui->tableView);
ui->tableView->resizeColumnsToContents();
ui->statusBar->showMessage("SELECT * from knjiga",0);
ispuniComboBox("Select * from izdavac",1,ui->comboBox_2);
}
//destruktor
GlavniProzor::~GlavniProzor()
{
delete ui;
}
//ispuni tablicu knjiga
void GlavniProzor::on_radioButton_toggled(bool checked)
{
ispuniTablicuView("SELECT * from knjiga",ui->tableView);
ui->statusBar->showMessage("SELECT * from knjiga",0);
}
//ispuni tablicu izdavac
void GlavniProzor::on_radioButton_3_toggled(bool checked)
{
ispuniTablicuView("SELECT * from izdavac",ui->tableView);
ui->statusBar->showMessage("SELECT * from izdavac",0);
}
//ispuni tablicu autor
void GlavniProzor::on_radioButton_4_toggled(bool checked)
{
ispuniTablicuView("SELECT * from autor",ui->tableView);
ui->statusBar->showMessage("SELECT * from autor",0);
}
//sucelje
//odabir tablice za prikaz
void GlavniProzor::on_pushButton_3_clicked()
{
ui->frame_3->hide();
ui->frame_4->hide();
ui->frame_2->show();
}
//dodavanje izdavaca
void GlavniProzor::on_pushButton_2_clicked()
{
ui->frame_2->hide();
ui->frame_4->hide();
ui->frame_3->show();
}
//dodaj autora
void GlavniProzor::on_pushButton_clicked()
{
ui->frame_2->hide();
ui->frame_3->hide();
ui->frame_4->show();
}
// sucelje
//dodavanje izdavaèa
void GlavniProzor::on_pushButton_4_clicked()
{
QSqlQuery query;
if(ui->lnIzdavac->text()==""){
ui->statusBar->showMessage("Molimo unesite naziv izdavaca",0);
}
else{
QString upit="INSERT into izdavac (naziv) values ('"+ui->lnIzdavac->text()+"')";
query.exec(upit);
ui->statusBar->showMessage(upit,0);
ispuniComboBox("Select * from izdavac",1,ui->comboBox_2);
}
}
//dodavanje autora
void GlavniProzor::on_pushButton_5_clicked()
{
QSqlQuery query;
if(ui->lnIme->text()==""||ui->lnPrezime->text()==""){
ui->statusBar->showMessage("Molimo unesite ime i prezime autora",0);
}
else{
QString upit="INSERT into autor (prezime,ime) values ('"+ui->lnPrezime->text()+"','"+ui->lnIme->text()+"')";
query.exec(upit);
ui->statusBar->showMessage(upit,0);
}
}
//dodavanje knjige
void GlavniProzor::on_pushButton_6_clicked()
{
QSqlQuery query;
QString naziv = ui->lnNaziv->text();
QString isbn=ui->lnISBN->text();
QString godina=ui->lnGodina->text();
QString izdavac=ui->comboBox_2->currentText().toAscii();
query.exec("SELECT * from izdavac where naziv ='"+izdavac+"'");
query.next();
// QMessageBox::information(this,"DEBUG","TEKST: "+query.lastError().text(),QMessageBox::Ok);
izdavac=query.value(0).toString();
//provjera da li su svi podaci unešeni
if(naziv==""||isbn==""||godina==""||izdavac==""){
ui->statusBar->showMessage("Molimo unesite sve potrebne podatke",0);
}
else{
QString upit="INSERT into knjiga (naziv, isbn, godina, izdavac) values ('"+naziv+"','"+isbn+"',"+godina+","+izdavac+")";
query.exec(upit);
ui->statusBar->showMessage(upit,0);
ispuniTablicuView("SELECT * from knjiga",ui->tableView);
}
}
//primjer prikaza relacije
void GlavniProzor::on_radioButton_2_toggled(bool checked)
{
QSqlRelationalTableModel *model= new QSqlRelationalTableModel();
model->clear();
model->setTable("autor_knjige");
model->setEditStrategy(QSqlTableModel::OnManualSubmit);
//! [1]
model->setRelation(0, QSqlRelation("knjiga", "sifra", "naziv"));
//! [1] //! [2]
model->setRelation(1, QSqlRelation("autor", "sifra", "prezime"));
model->select();
ui->tableView->setModel(model);
ui->tableView->resizeColumnsToContents();
ui->statusBar->showMessage("Relacija knjiga / autor",0);
}
//brisanje iz baze
void GlavniProzor::on_pushButton_7_clicked()
{
QSqlQuery query;
qint16 row=( ui->tableView->currentIndex().row());
QModelIndex indeks= ui->tableView->model()->index(row,0,QModelIndex());
QString sifra=ui->tableView->model()->data(indeks,Qt::DisplayRole).toString();
if(ui->radioButton->isChecked()){
query.exec("DELETE from knjiga where sifra = "+sifra);
ui->statusBar->showMessage("DELETE from knjiga where sifra = "+sifra,0);
ispuniTablicuView("SELECT * from knjiga",ui->tableView);
}
else if(ui->radioButton_2->isChecked()){
QMessageBox::information(this,"Info","Nazalost ova funkcija nije implementirana :)",QMessageBox::Ok);
}
else if(ui->radioButton_4->isChecked()){
query.exec("DELETE from autor where sifra = "+sifra);
ui->statusBar->showMessage("DELETE from autor where sifra = "+sifra,0);
ispuniTablicuView("SELECT * from autor",ui->tableView);
}
else if(ui->radioButton_3->isChecked()){
query.exec("DELETE from izdavac where sifra = "+sifra);
ui->statusBar->showMessage("DELETE from izdavac where sifra = "+sifra,0);
ispuniTablicuView("SELECT * from izdavac",ui->tableView);
}
}
//pretraga
void GlavniProzor::on_checkBox_toggled(bool checked)
{
if(ui->checkBox->isChecked()){
ui->frame_5->show();
}
else
ui->frame_5->hide();
}
void GlavniProzor::on_pushButton_8_clicked()
{
ispuniTablicuView("SELECT * from knjiga where godina = '"+ui->lnNaziv_2->text()+"'",ui->tableView);
ui->statusBar->showMessage("SELECT * from knjiga where godina = '"+ui->lnNaziv_2->text()+"'",0);
}
//pretraga
void GlavniProzor::on_checkBox_2_toggled(bool checked)
{
if(ui->checkBox_2->isChecked()){
ui->frame_6->show();
}
else
ui->frame_6->hide();
}