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#include "geld.h"
#include "ui_geld.h"
#include <QDir>
#include <QFile>
#include <QtGlobal>
#include <QSqlQueryModel>
#include <QMessageBox>
#include "contraaccount.h"
#include "transactionmodel.h"
#include "transaction.h"
Geld::Geld(QWidget *parent)
: QMainWindow(parent), ui(new Ui::Geld)
{
QString f = QDir::home().filePath(".geld.db");
if(!QFile::exists(f))
QMessageBox::information(this, "First run",
"This appears to be your first time running this program, let me use this opportunity to tell you a few things:\n\n"
"- This program is just a little experiment, don't assume things to work.\n"
"- All data is saved in a user-global database file which cannot be changed at the moment, so if someone opens this program on your PC, the first thing he/she will see is your financial data.\n"
"- All data is saved unencrypted, anyone who has access to the database file has access to it's contents.\n"
"- This program is still in development, older database files may not be compatible with newer versions of the software.\n"
"- A simple excel sheet may very well be more useful than this program.\n"
"- This program is written by an engineer who knows nothing about finance");
ui->setupUi(this);
initDB(f);
TransactionModel *transmod = new TransactionModel(ui->tableTransactions);
ui->tableTransactions->setModel(transmod);
ui->tableTransactions->setColumnHidden(0, true);
QSqlQueryModel *contramod = new QSqlQueryModel(ui->tableContra);
ui->tableContra->setModel(contramod);
ui->tableTransactions->setColumnHidden(0, true);
refreshLists();
// the Qt Designer interface lacks functionality for connecting actions to widgets
ui->tableTransactions->addAction(ui->actionTransAdd);
ui->tableTransactions->addAction(ui->actionTransEdit);
ui->tableTransactions->addAction(ui->actionTransDelete);
ui->tableContra->addAction(ui->actionContraAdd);
ui->tableContra->addAction(ui->actionContraEdit);
ui->tableContra->addAction(ui->actionContraDelete);
// the Qt Designer interface also lacks some functionality when it comes to connecting signals to functions
connect(ui->btnAddTransaction, SIGNAL(clicked()), this, SLOT(addTransaction()));
connect(ui->actionTransAdd, SIGNAL(triggered()), this, SLOT(addTransaction()));
connect(ui->btnEditTransaction, SIGNAL(clicked()), this, SLOT(editTransaction()));
connect(ui->actionTransEdit, SIGNAL(triggered()), this, SLOT(editTransaction()));
connect(ui->tableTransactions, SIGNAL(doubleClicked(QModelIndex)), this, SLOT(editTransaction()));
connect(ui->actionTransDelete, SIGNAL(triggered()), this, SLOT(deleteTransaction()));
connect(ui->btnAddContra, SIGNAL(clicked()), this, SLOT(addContra()));
connect(ui->actionContraAdd, SIGNAL(triggered()), this, SLOT(addContra()));
connect(ui->btnEditContra, SIGNAL(clicked()), this, SLOT(editContra()));
connect(ui->actionContraEdit, SIGNAL(triggered()), this, SLOT(editContra()));
connect(ui->tableContra, SIGNAL(doubleClicked(QModelIndex)), this, SLOT(editContra()));
connect(ui->actionContraDelete, SIGNAL(triggered()), this, SLOT(deleteContra()));
ui->statusBar->showMessage(QString("Opened database file %1").arg(f), 0);
}
Geld::~Geld()
{
closeDB();
delete ui;
}
void Geld::initDB(QString file)
{
// open or create database file
QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
db.setDatabaseName(file);
Q_ASSERT(db.open()); // assuming this doesn't fail to keep the code simple
// create tables
QSqlQuery q;
q.exec("CREATE TABLE IF NOT EXISTS contra_accounts ("
"id INTEGER PRIMARY KEY,"
"account TEXT," // account number
"name TEXT,"
"address TEXT"
")"
);
q.exec("CREATE TABLE IF NOT EXISTS transactions ("
"id INTEGER PRIMARY KEY,"
"amount INTEGER," // amount in cents
"date TEXT," // yyyy-mm-dd
"contra INTEGER REFERENCES contra_accounts (id)," // contra account
"description TEXT"
")"
);
}
void Geld::closeDB()
{
QString conn;
{
QSqlDatabase db = QSqlDatabase::database();
conn = db.connectionName();
db.close();
}
QSqlDatabase::removeDatabase(conn);
}
void Geld::refreshLists() {
ui->tableTransactions->horizontalHeader()->setStretchLastSection(false);
((TransactionModel *) ui->tableTransactions->model())->refresh();
ui->tableTransactions->resizeColumnsToContents();
ui->tableTransactions->horizontalHeader()->setStretchLastSection(true);
QSqlQuery q;
q.exec("SELECT SUM(amount) FROM transactions");
q.next();
ui->lblTransactionBalance->setText(QString("Balance: <span style=\"color: %1\">%2</span>")
.arg(q.value(0).toInt() < 0 ? "red" : "green").arg(q.value(0).toDouble()/100, 4, 'f', 2));
ui->tableContra->horizontalHeader()->setStretchLastSection(false);
QSqlQueryModel *m = (QSqlQueryModel *)ui->tableContra->model();
m->setQuery(
"SELECT c.id, c.account, c.name, COUNT(t.id), c.address "
"FROM contra_accounts c "
"LEFT JOIN transactions t ON t.contra = c.id "
"GROUP BY c.id "
"ORDER BY name"
);
m->setHeaderData(0, Qt::Horizontal, "ID");
m->setHeaderData(1, Qt::Horizontal, "Account");
m->setHeaderData(2, Qt::Horizontal, "Name");
m->setHeaderData(3, Qt::Horizontal, "Transactions");
m->setHeaderData(4, Qt::Horizontal, "Address");
ui->tableContra->setColumnHidden(0, true);
ui->tableContra->resizeColumnsToContents();
ui->tableContra->horizontalHeader()->setStretchLastSection(true);
}
int Geld::selectedTransaction()
{
// this. is. soooooooo. ugly.
TransactionModel *mod = (TransactionModel *) ui->tableTransactions->model();
QModelIndexList indexes = ui->tableTransactions->selectionModel()->selection().indexes();
if(indexes.count() != mod->columnCount()) {
ui->statusBar->showMessage("Nothing selected.", 3000);
return 0;
}
return mod->data(mod->index(indexes.at(0).row(), 0), Qt::DisplayRole).toInt();
}
void Geld::editTransaction()
{
int id = selectedTransaction();
if(!id)
return;
Transaction t(this);
t.load(id);
if(t.exec() == QDialog::Accepted) {
t.save(id);
refreshLists();
}
}
void Geld::addTransaction()
{
Transaction t(this);
if(t.exec() == QDialog::Accepted) {
t.save();
refreshLists();
}
}
void Geld::deleteTransaction()
{
int id = selectedTransaction();
if(!id)
return;
if(QMessageBox::question(this, "You sure?", "Are you sure you want to remove the selected transaction?", QMessageBox::No|QMessageBox::Yes, QMessageBox::No) == QMessageBox::Yes) {
QSqlQuery q;
q.prepare("DELETE FROM transactions WHERE id = ?");
q.addBindValue(id);
q.exec();
refreshLists();
}
}
int Geld::selectedContra()
{
// this. is. soooooooo. ugly.
QAbstractItemModel *mod = ui->tableContra->model();
QModelIndexList indexes = ui->tableContra->selectionModel()->selection().indexes();
if(indexes.count() != mod->columnCount()) {
ui->statusBar->showMessage("Nothing selected.", 3000);
return 0;
}
return mod->data(mod->index(indexes.at(0).row(), 0), Qt::DisplayRole).toInt();
}
void Geld::addContra()
{
ContraAccount c(this);
if(c.exec() == QDialog::Accepted) {
c.save();
refreshLists();
}
}
void Geld::editContra()
{
int id = selectedContra();
if(!id)
return;
ContraAccount c(this);
c.load(id);
if(c.exec() == QDialog::Accepted) {
c.save(id);
refreshLists();
}
}
void Geld::deleteContra()
{
int id = selectedContra();
if(!id)
return;
QSqlQuery q;
q.prepare("SELECT 1 FROM transactions WHERE contra = ? LIMIT 1");
q.addBindValue(id);
q.exec();
if(q.next()) {
QMessageBox::critical(this, "Can't delete contra account",
"This contra account appears to be refered to from a transaction. "
"Please make sure there are no transactions with this contra account in the database and try again."
);
return;
}
if(QMessageBox::question(this, "You sure?", "Are you sure you want to remove the selected contra account?", QMessageBox::No|QMessageBox::Yes, QMessageBox::No) == QMessageBox::Yes) {
QSqlQuery q;
q.prepare("DELETE FROM contra_accounts WHERE id = ?");
q.addBindValue(id);
q.exec();
refreshLists();
}
}
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