Path to database is now saved via QSettings object.

application/mainwindow.cpp

@@ -37,6 +37,7 @@ MainWindow::~MainWindow()
 void MainWindow::on_actionExit_triggered()
 {
     this->close();
+    Context::instance().destroy();
 }
 
 void MainWindow::openPlugin()

core/context.cpp

@@ -55,21 +55,50 @@ void Context::loadPlugins()
             }
         }
     }
+
+    QString dbPath = m_settings->value("db/path", "").toString();
+    if (!dbPath.isEmpty())
+    {
+        openDb(dbPath);
+    }
 }
 
 void Context::openDb(const QString &path)
 {
     if (m_db != NULL) {
         delete m_db;
+        m_dbOpened = false;
     }
 
     checkDb(path);
     m_db = new odb::sqlite::database(path.toStdString());
+    m_settings->setValue("db/path", path);
+    m_dbOpened = true;
+}
+
+void Context::destroy()
+{
+    if (m_db != NULL)
+    {
+        delete m_db;
+        m_db = NULL;
+        m_dbOpened = false;
+    }
+
+    delete m_settings;
+
+    foreach (IPlugin *plugin, m_plugins)
+    {
+        delete plugin;
+    }
+    m_plugins.clear();
 }
 
 Context::Context()
 {
     m_db = NULL;
+    m_settings = new QSettings("itsolved.cz", "prodejna");
+    m_dbOpened = false;
 }
 
 void Context::checkDb(const QString &path)

core/context.h

@@ -6,6 +6,7 @@
 #include <QString>
 #include <QSqlDatabase>
 #include <QStringList>
+#include <QSettings>
 
 #include "define.h"
 #include "core_global.h"
@@ -24,11 +25,16 @@ public:
     void loadPlugins();
     void openDb(const QString &path);
     odb::database *db() { return m_db; }
+    QSettings *settings() { return m_settings; }
+    bool dbOpened() { return m_dbOpened; }
+    void destroy();
 
 private:
     Context();
     QList<IPlugin*> m_plugins;
     odb::database *m_db;
+    QSettings *m_settings;
+    bool m_dbOpened;
 
     QStringList m_solved;