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‎.gitignore

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*.exe
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*.out
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*.app
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build

‎CMakeLists.txt

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cmake_minimum_required(VERSION 3.5)
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project(CallsCounter VERSION 0.1 LANGUAGES CXX)
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set(CMAKE_AUTOUIC ON)
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set(CMAKE_AUTOMOC ON)
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set(CMAKE_AUTORCC ON)
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set(CMAKE_CXX_STANDARD 17)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Widgets Sql)
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find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Widgets Sql)
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set(PROJECT_SOURCES
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main.cpp
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mainwindow.cpp
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mainwindow.hpp
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mainwindow.ui
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database.hpp
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database.cpp
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)
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if(${QT_VERSION_MAJOR} GREATER_EQUAL 6)
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qt_add_executable(CallsCounter
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MANUAL_FINALIZATION
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${PROJECT_SOURCES}
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)
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# Define target properties for Android with Qt 6 as:
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# set_property(TARGET CallsCounter APPEND PROPERTY QT_ANDROID_PACKAGE_SOURCE_DIR
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# ${CMAKE_CURRENT_SOURCE_DIR}/android)
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# For more information, see https://doc.qt.io/qt-6/qt-add-executable.html#target-creation
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else()
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if(ANDROID)
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add_library(CallsCounter SHARED
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${PROJECT_SOURCES}
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)
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# Define properties for Android with Qt 5 after find_package() calls as:
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# set(ANDROID_PACKAGE_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/android")
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else()
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add_executable(CallsCounter
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${PROJECT_SOURCES}
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)
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endif()
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endif()
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target_link_libraries(CallsCounter PRIVATE Qt${QT_VERSION_MAJOR}::Widgets Qt${QT_VERSION_MAJOR}::Sql)
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set_target_properties(CallsCounter PROPERTIES
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MACOSX_BUNDLE_GUI_IDENTIFIER my.example.com
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MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
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MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
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MACOSX_BUNDLE TRUE
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WIN32_EXECUTABLE TRUE
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)
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install(TARGETS CallsCounter
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BUNDLE DESTINATION .
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
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if(QT_VERSION_MAJOR EQUAL 6)
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qt_finalize_executable(CallsCounter)
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endif()

‎assets/icon.ico

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‎database.cpp

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#include "database.hpp"
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Database::Database(QObject *parent)
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: QObject{parent}
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{
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m_db = QSqlDatabase::addDatabase("QSQLITE");
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m_query = QSqlQuery(m_db);
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setDBEnvironmentUp();
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createDB();
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}
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Database::~Database()
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{
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if (m_db.isOpen())
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m_db.close();
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}
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void Database::setDBEnvironmentUp()
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{
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auto parentDir = QString("%1%2%3%4%5").arg(QDir::homePath(), QDir::separator(),
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"Documents", QDir::separator(), "CallsCounter");
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auto fullPath = QString("%1%2%3").arg(parentDir, QDir::separator(), "calls.sqlite3");
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QDir dir(parentDir);
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if (not dir.exists(parentDir)) {
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dir.mkdir(parentDir);
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}
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m_db.setDatabaseName(fullPath);
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}
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void Database::createDB()
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{
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if (not m_db.open()) {
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emit error("Database couldn't be opened, thus couldn't be created.");
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return;
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}
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QString statement = "CREATE TABLE IF NOT EXISTS Calls (\
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id INTEGER PRIMARY KEY AUTOINCREMENT,\
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calls INTERGER NOT NULL,\
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date DATETIME NOT NULL UNIQUE,\
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username TEXT NOT NULL)";
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if (not m_query.exec(statement)) {
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emit error("Database couldn't be created.");
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emit error(m_query.lastError().text());
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}
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m_db.close();
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}
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bool Database::open()
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{
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bool result;
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if (not (result = m_db.open())) {
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emit error("Database couldn't be opened.");
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}
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return result;
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}
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void Database::close()
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{
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m_db.close();
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}
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bool Database::exec(const QString& statement)
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{
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bool result;
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if (not (result = m_query.exec(statement))) {
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emit error("Statement couldn't be executed.");
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emit error(m_query.lastError().text());
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}
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return result;
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}
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int Database::records() const
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{
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return m_query.size();
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}
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QSqlRecord Database::record()
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{
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m_query.first();
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return m_query.record();
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}
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QVariant Database::value(int index) const
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{
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return m_query.value(index);
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}

‎database.hpp

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#ifndef DATABASE_H
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#define DATABASE_H
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#include <QDir>
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#include <QSqlDatabase>
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#include <QSqlError>
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#include <QSqlRecord>
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#include <QSqlQuery>
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#include <QObject>
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class Database : public QObject
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{
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Q_OBJECT
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QSqlDatabase m_db;
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QSqlQuery m_query;
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void setDBEnvironmentUp();
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void createDB();
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public:
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explicit Database(QObject *parent = nullptr);
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~Database();
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bool open();
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void close();
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bool exec(const QString& statement);
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int records() const;
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QSqlRecord record();
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QVariant value(int index) const;
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signals:
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void error(QString message);
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};
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#endif // DATABASE_H

‎main.cpp

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#include <QApplication>
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#include <QIcon>
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#include "mainwindow.hpp"
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int main(int argc, char *argv[])
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{
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QApplication a(argc, argv);
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MainWindow w;
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w.setWindowIcon(QIcon("assets/icon.ico"));
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w.show();
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return a.exec();
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}

‎mainwindow.cpp

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#include "mainwindow.hpp"
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#include "./ui_mainwindow.h"
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MainWindow::MainWindow(QWidget *parent)
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: QMainWindow(parent)
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, m_ui(new Ui::MainWindow)
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, m_calls(0)
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, m_db()
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{
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m_ui->setupUi(this);
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connect(&m_db, &Database::error, this, &MainWindow::error);
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connect(m_ui->newButton, &QPushButton::clicked, this, &MainWindow::newCall);
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connect(m_ui->saveButton, &QPushButton::clicked, this, &MainWindow::saveCalls);
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connect(&m_timer, &QTimer::timeout, this, &MainWindow::setDateTime);
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m_username = qgetenv("USER");
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if (m_username.isEmpty())
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m_username = qgetenv("USERNAME");
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m_ui->usernameLabel->setText("Usuario: " + m_username);
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setDateTime();
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setTodaysCalls();
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m_timer.setInterval(1'000);
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m_timer.start();
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}
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MainWindow::~MainWindow()
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{
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delete m_ui;
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}
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void MainWindow::setLabel()
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{
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m_ui->messageLabel->setText(QString("Hoy has registrado %1 %2.")
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.arg(QString::number(m_calls), m_calls == 1 ? "llamada" : "llamadas"));
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}
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void MainWindow::setDateTime()
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{
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m_datetime = QDateTime::currentDateTime().toString("dd-MM-yyyy");
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m_ui->datetimeLabel->setText(QString("Fecha: %1").arg(m_datetime));
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}
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void MainWindow::setTodaysCalls()
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{
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if (not m_db.open())
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return;
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auto statement = QString("SELECT id, calls FROM Calls WHERE date='%1' ORDER BY id DESC LIMIT 1").arg(m_datetime);
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if (not m_db.exec(statement)) {
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m_db.close();
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return;
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}
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auto record { m_db.record() };
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int index { record.indexOf("calls") };
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m_calls = m_db.value(index).toInt();
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if (m_calls == -1)
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m_calls = 0;
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setLabel();
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m_db.close();
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}
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void MainWindow::error(const QString& message)
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{
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QMessageBox::critical(this, "Error", message);
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}
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bool MainWindow::shouldUpdate()
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{
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auto statement = QString("SELECT COUNT(id) AS fields FROM Calls WHERE username='%1' AND date='%2'")
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.arg(m_username, m_datetime);
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if (not m_db.exec(statement))
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return false;
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auto record { m_db.record() };
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int index { record.indexOf("fields") };
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int fields { m_db.value(index).toInt() };
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if (fields == 0)
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return false;
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return true;
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}
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void MainWindow::newCall()
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{
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++m_calls;
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setLabel();
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}
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void MainWindow::saveCalls()
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{
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if (not m_db.open())
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return;
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bool update = shouldUpdate();
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QString statement;
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if (update) {
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// I prefer to use IDs in the WHERE clause, but we have no problem since datetime cannot be duplicated.
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statement = QString("UPDATE Calls SET calls='%1' WHERE username='%2' AND date='%3'")
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.arg(QString::number(m_calls), m_username, m_datetime);
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} else {
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statement = QString("INSERT INTO Calls (calls, date, username) VALUES ('%1', '%2', '%3')")
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.arg(QString::number(m_calls), m_datetime, m_username);
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}
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if (not m_db.exec(statement)) {
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m_db.close();
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return;
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}
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m_db.close();
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QMessageBox::information(this, "Information", "Calls have been saved.");
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}

‎mainwindow.hpp

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#ifndef MAINWINDOW_H
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#define MAINWINDOW_H
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#include <QDateTime>
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#include <QDir>
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#include <QMainWindow>
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#include <QMessageBox>
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#include <QSqlRecord>
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#include <QTimer>
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#include "database.hpp"
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QT_BEGIN_NAMESPACE
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namespace Ui { class MainWindow; }
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QT_END_NAMESPACE
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class MainWindow : public QMainWindow
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{
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Q_OBJECT
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Ui::MainWindow *m_ui;
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int m_calls;
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QString m_datetime;
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QString m_username;
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QTimer m_timer; // To set datetime.
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Database m_db;
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void setLabel();
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void setDateTime();
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void setTodaysCalls();
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bool shouldUpdate();
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public:
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MainWindow(QWidget* parent = nullptr);
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~MainWindow();
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private slots:
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void error(const QString& message);
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void newCall();
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void saveCalls();
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};
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#endif // MAINWINDOW_H

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