do not store DB file in extra redundat "local" subfolder

src/librssguard/database/databasedriver.h

@@ -28,6 +28,7 @@ class DatabaseDriver : public QObject {
     explicit DatabaseDriver(QObject* parent = nullptr);
 
     // API.
+    virtual QString location() const = 0;
     virtual QString humanDriverType() const = 0;
     virtual QString qtDriverCode() const = 0;
     virtual DriverType driverType() const = 0;

src/librssguard/database/mariadbdriver.cpp

@@ -62,6 +62,11 @@ MariaDbDriver::MariaDbError MariaDbDriver::testConnection(const QString& hostnam
   }
 }
 
+QString MariaDbDriver::location() const {
+  return QSL("%1/%2").arg(qApp->settings()->value(GROUP(Database), SETTING(Database::MySQLHostname)).toString(),
+                          qApp->settings()->value(GROUP(Database), SETTING(Database::MySQLDatabase)).toString());
+}
+
 QString MariaDbDriver::interpretErrorCode(MariaDbDriver::MariaDbError error_code) const {
   switch (error_code) {
     case MariaDbError::Ok:

src/librssguard/database/mariadbdriver.h

@@ -24,6 +24,7 @@ class MariaDbDriver : public DatabaseDriver {
     MariaDbError testConnection(const QString& hostname, int port, const QString& w_database,
                                 const QString& username, const QString& password);
 
+    virtual QString location() const;
     virtual QString humanDriverType() const;
     virtual QString qtDriverCode() const;
     virtual DriverType driverType() const;

src/librssguard/database/sqlitedriver.cpp

@@ -16,6 +16,10 @@ SqliteDriver::SqliteDriver(bool in_memory, QObject* parent)
   m_fileBasedDatabaseInitialized(false),
   m_inMemoryDatabaseInitialized(false) {}
 
+QString SqliteDriver::location() const {
+  return m_databaseFilePath;
+}
+
 DatabaseDriver::DriverType SqliteDriver::driverType() const {
   return DriverType::SQLite;
 }

src/librssguard/database/sqlitedriver.h

@@ -11,6 +11,7 @@ class SqliteDriver : public DatabaseDriver {
   public:
     explicit SqliteDriver(bool in_memory, QObject* parent = nullptr);
 
+    virtual QString location() const;
     virtual DriverType driverType() const;
     virtual bool vacuumDatabase();
     virtual bool saveDatabase();

src/librssguard/definitions/definitions.h

@@ -160,7 +160,7 @@
 
 #define APP_DB_SQLITE_DRIVER          "QSQLITE"
 #define APP_DB_SQLITE_INIT            "db_init_sqlite.sql"
-#define APP_DB_SQLITE_PATH            "database/local"
+#define APP_DB_SQLITE_PATH            "database"
 #define APP_DB_SQLITE_FILE            "database.db"
 
 // Keep this in sync with schema versions declared in SQL initialization code.

src/librssguard/gui/dialogs/formabout.cpp

@@ -2,9 +2,12 @@
 
 #include "gui/dialogs/formabout.h"
 
+#include "database/databasedriver.h"
+#include "database/databasefactory.h"
 #include "definitions/definitions.h"
 #include "exceptions/applicationexception.h"
 #include "gui/guiutilities.h"
+#include "miscellaneous/application.h"
 #include "miscellaneous/iconfactory.h"
 #include "miscellaneous/settingsproperties.h"
 #include "miscellaneous/textfactory.h"
@@ -33,9 +36,7 @@ void FormAbout::loadSettingsAndPaths() {
     m_ui.m_txtPathsSettingsType->setText(tr("NOT portable"));
   }
 
-  m_ui.m_txtPathsDatabaseRoot->setText(QDir::toNativeSeparators(qApp->userDataFolder() +
-                                                                QDir::separator() +
-                                                                QString(APP_DB_SQLITE_PATH)));
+  m_ui.m_txtPathsDatabaseRoot->setText(qApp->database()->driver()->location());
   m_ui.m_txtPathsSettingsFile->setText(QDir::toNativeSeparators(qApp->settings()->fileName()));
   m_ui.m_txtPathsSkinsRoot->setText(QDir::toNativeSeparators(qApp->skins()->customSkinBaseFolder()));
 }

src/librssguard/gui/dialogs/formabout.ui

@@ -235,7 +235,7 @@ p, li { white-space: pre-wrap; }
            <rect>
             <x>0</x>
             <y>0</y>
-            <width>83</width>
+            <width>98</width>
             <height>69</height>
            </rect>
           </property>
@@ -305,7 +305,7 @@ p, li { white-space: pre-wrap; }
            <rect>
             <x>0</x>
             <y>0</y>
-            <width>83</width>
+            <width>98</width>
             <height>69</height>
            </rect>
           </property>
@@ -472,7 +472,7 @@ p, li { white-space: pre-wrap; }
        <item row="2" column="0">
         <widget class="QLabel" name="label_4">
          <property name="text">
-          <string>Database root path</string>
+          <string>Database location</string>
          </property>
         </widget>
        </item>