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#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QMessageBox>
#include <iostream>
#include "customsqlmodel.h"
#include <QSqlQuery>
#include <sstream>
#include <fstream>
const char* MainWindow::CONFIG_PATH = "/usr/local/etc/apunts.conf";
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
std::string* parameters = loadConfig(CONFIG_PATH);
db = QSqlDatabase::addDatabase("QMYSQL");
db.setHostName(parameters[0].c_str());
db.setUserName(parameters[1].c_str());
db.setPassword(parameters[2].c_str());
db.setDatabaseName(parameters[3].c_str());
if(!db.open())
{
QMessageBox::critical(this,"Error",trUtf8("No s'ha pogut obrir la base de dades"));
exit(-1);
}
delete[] parameters;
connect(ui->exitButton,SIGNAL(clicked()),this, SLOT(close()));
connect(ui->addButton,SIGNAL(clicked()),this,SLOT(showAddDialog()));
connect(ui->editButton,SIGNAL(clicked()),this,SLOT(showEditDialog()));
connect(ui->deleteButton,SIGNAL(clicked()),this,SLOT(deleteReserva()));
connect(ui->tableView,SIGNAL(doubleClicked(QModelIndex)),this,SLOT(showEditDialog()));
connect(ui->tableView->horizontalHeader(),SIGNAL(sectionClicked(int)),this,SLOT(sort(int)));
query = "SELECT r.nom_i_cognoms as \"Nom i cognoms\", a.nom as Apunts, r.telefon as Telèfon, r.data as Data, r.comentari as Comentari FROM assignatures as a, reserves as r WHERE a.num = r.apunts ";
orderQuery= ";";
triggerUpdate();
ui->tableView->setModel(&tableViewModel);
ui->tableView->resizeColumnsToContents();
ui->tableView->resizeRowsToContents();
setStatusMessage(trUtf8("Llistat de préstecs carregat"));
}
void MainWindow::triggerUpdate()
{
std::string str = query+orderQuery;
tableViewModel.setQuery(trUtf8(str.c_str()));
ui->tableView->resizeRowsToContents();
}
void MainWindow::setStatusMessage(const QString &str)
{
ui->statusBar->showMessage(str);
}
QSqlRecord& MainWindow::getSelectedReserva()
{
return selectedReserva;
}
int MainWindow::getNum(QString name)
{
QSqlQuery number;
number.prepare("SELECT num FROM assignatures WHERE nom = :n");
number.bindValue(":n",name);
number.exec();
number.next();
return number.record().value(0).toInt();
}
std::string* MainWindow::loadConfig(const char *path)
{
std::ifstream conf;
conf.open(path);
if(!conf.is_open())
{
conf.close();
QMessageBox::critical(this,"Error",trUtf8("No s'ha pogut carregar el fitxer de configuració. Aviseu a l'administrador."));
exit(-2);
}
std::string host, user, pass, db;
std::getline(conf,host);
std::getline(conf,user);
std::getline(conf,pass);
std::getline(conf,db);
host = host.substr(5);
user = user.substr(5);
pass = pass.substr(9);
db = db.substr(9);
std::string* ret = new std::string[4];
ret[0] = host;
ret[1] = user;
ret[2] = pass;
ret[3] = db;
return ret;
}
bool MainWindow::checkPhone(QString phone)
{
bool isNumber;
phone.toInt(&isNumber);
if((!isNumber) || (phone.length() != 9))
{
return false;
}
return true;
}
void MainWindow::showAddDialog()
{
add = new AddDialog(this);
add->show();
}
void MainWindow::showEditDialog()
{
if(ui->tableView->selectionModel()->selectedIndexes().isEmpty())
{
QMessageBox::critical(this,"Error",trUtf8("No s'ha seleccionat cap préstec"));
return;
}
QModelIndexList indexes = ui->tableView->selectionModel()->selectedRows();
if(indexes.count() > 1)
{
QMessageBox::critical(this,"Error",trUtf8("Només es pot editar una entrada a la vegada"));
return;
}
selectedReserva=tableViewModel.record((indexes.at(0).row()));
edit = new EditDialog(this);
edit->show();
}
void MainWindow::deleteReserva()
{
QSqlQuery deleteQuery, assignaturaQuery;
QModelIndexList indexes = ui->tableView->selectionModel()->selectedRows();
if(!warnUser(indexes.count()))
{
return;
}
for(int i = 0; i < indexes.count(); i++)
{
int number = getNum(tableViewModel.record(indexes.at(i).row()).value(1).toString());
deleteQuery.prepare("DELETE FROM reserves WHERE apunts = :n");
deleteQuery.bindValue(":n",number);
deleteQuery.exec();
assignaturaQuery.prepare("UPDATE assignatures SET agafats = '0' WHERE num = :n;");
assignaturaQuery.bindValue(":n",number);
assignaturaQuery.exec();
}
triggerUpdate();
if(deleteQuery.isActive() && assignaturaQuery.isActive())
{
setStatusMessage(trUtf8("Canvis desats: s'ha eliminat el préstec"));
return;
}
setStatusMessage(trUtf8("Error: no s'ha pogut escriure a la base de dades"));
}
void MainWindow::dismissAddDialog()
{
add->close();
delete add;
add = 0;
}
void MainWindow::dismissEditDialog()
{
edit->close();
delete edit;
edit = 0;
}
bool MainWindow::warnUser(int elements)
{
if(elements)
{
std::stringstream sstream;
sstream << "Segur que vols eliminar ";
sstream << elements;
sstream << " préstecs?";
int n = QMessageBox::warning(this,trUtf8("Eliminar préstec?"),trUtf8(sstream.str().c_str()),"&Si","&No",QString::null,1,1);
if(!n)
{
return true;
}
return false;
}
else
{
QMessageBox::critical(this,"Error",trUtf8("No s'ha seleccionat cap préstec"));
return false;
}
}
void MainWindow::sort(int index)
{
orderQuery = "ORDER BY ";
std::stringstream sstream;
sstream << (index+1);
orderQuery.append(sstream.str());
Qt::SortOrder sortOrder = ui->tableView->horizontalHeader()->sortIndicatorOrder();
if(sortOrder == Qt::AscendingOrder)
{
orderQuery += " ASC;";
}
else
{
orderQuery += " DESC;";
}
triggerUpdate();
}
MainWindow::~MainWindow()
{
delete ui;
}
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