Work in db backend.

CMakeLists.txt

@@ -218,7 +218,6 @@ set(APP_HEADERS
 
   # QtSingleApplication suite headers.
   src/qtsingleapplication/qtlocalpeer.h
-  src/qtsingleapplication/qtlockedfile.h
   src/qtsingleapplication/qtsingleapplication.h
 
   # GUI headers.
@@ -277,7 +276,7 @@ set(APP_TRANSLATIONS_WO_QT
   localization/rssguard_cs.ts
 )
 
-set(APP_MISC
+set(APP_TEXT
   resources/text/CHANGELOG
   resources/text/COPYING_GNU_GPL
   resources/text/COPYING_GNU_GPL_HTML
@@ -379,6 +378,8 @@ if(WIN32)
           DESTINATION ./)
   install(DIRECTORY resources/skins/base
           DESTINATION ./skins)
+  install(DIRECTORY resources/misc
+          DESTINATION ./)
   install(FILES resources/graphics/${APP_LOW_NAME}_128.png
           DESTINATION ./
           RENAME ${APP_LOW_NAME}.png)
@@ -387,7 +388,7 @@ if(WIN32)
           RENAME ${APP_LOW_NAME}_plain.png)
   install(FILES ${APP_QM}
           DESTINATION ./l10n)
-  install(FILES ${APP_MISC}
+  install(FILES ${APP_TEXT}
           DESTINATION ./)
 elseif(UNIX)
   message(STATUS "[${APP_LOW_NAME}] You will probably install on Linux.")
@@ -399,6 +400,8 @@ elseif(UNIX)
           DESTINATION share/${APP_LOW_NAME}/)
   install(DIRECTORY resources/skins/base
           DESTINATION share/${APP_LOW_NAME}/skins)
+  install(DIRECTORY resources/misc
+          DESTINATION share/${APP_LOW_NAME}/)
   install(FILES ${CMAKE_CURRENT_BINARY_DIR}/resources/desktop/${APP_LOW_NAME}.desktop
           DESTINATION share/applications)
   install(FILES resources/graphics/${APP_LOW_NAME}_128.png
@@ -409,7 +412,7 @@ elseif(UNIX)
           RENAME ${APP_LOW_NAME}_plain.png)
   install(FILES ${APP_QM}
           DESTINATION share/${APP_LOW_NAME}/l10n)
-  install(FILES ${APP_MISC}
+  install(FILES ${APP_TEXT}
           DESTINATION share/${APP_LOW_NAME}/information)
 endif(WIN32)
 

resources/misc/db_init.sql

@@ -0,0 +1,17 @@
+DROP TABLE IF EXISTS Information;
+-- !
+CREATE TABLE IF NOT EXISTS Information (
+  key           TEXT      PRIMARY KEY,
+  value         TEXT      NOT NULL
+);
+-- !
+INSERT INTO Information VALUES ('schema_version', '0.0.1');
+-- !
+DROP TABLE IF EXISTS Categories;
+-- !
+CREATE TABLE IF NOT EXISTS Categories (
+  id             INTEGER  PRIMARY KEY,
+  title          TEXT     NOT NULL UNIQUE CHECK(title != ''),
+  description    TEXT
+  icon           BLOB
+);

src/core/databasefactory.cpp

@@ -27,20 +27,8 @@ DatabaseFactory *DatabaseFactory::getInstance() {
 }
 
 void DatabaseFactory::assemblyDatabaseFilePath()  {
-  // Fill m_databasePath with correct path (portable or non-portable).
+  m_databasePath = QDir::homePath() + QDir::separator() + APP_LOW_H_NAME +
-  QString home_path = QDir::homePath() + QDir::separator() +
+                   QDir::separator() + APP_DB_PATH;
-                      APP_LOW_H_NAME;
-  QString home_path_file = home_path + QDir::separator() +
-                           APP_DB_PATH + QDir::separator() + APP_DB_FILE;
-  QString app_path = qApp->applicationDirPath();
-  QString app_path_file = app_path + QDir::separator() + APP_DB_FILE;
-
-  if (QFile(app_path_file).exists()) {
-    m_databasePath = app_path_file;
-  }
-  else {
-    m_databasePath = home_path_file;
-  }
 }
 
 QString DatabaseFactory::getDatabasePath() {
@@ -50,7 +38,7 @@ QString DatabaseFactory::getDatabasePath() {
 QSqlDatabase DatabaseFactory::initialize(const QString &connection_name) {
   // Prepare file paths.
   QDir db_path(getDatabasePath());
-  QFile db_file(db_path.absoluteFilePath("database.db"));
+  QFile db_file(db_path.absoluteFilePath(APP_DB_FILE));
 
   // Check if database directory exists.
   if (!db_path.exists()) {
@@ -67,18 +55,18 @@ QSqlDatabase DatabaseFactory::initialize(const QString &connection_name) {
                                                     connection_name);
 
   // Setup database file path.
-  database.setDatabaseName(db_file.symLinkTarget());
+  database.setDatabaseName(db_file.fileName());
 
   if (!database.open()) {
     qFatal("Database was NOT opened. Delivered error message: '%s'",
            qPrintable(database.lastError().text()));
   }
   else {
+    database.exec("PRAGMA encoding = \"UTF-8\"");
     database.exec("PRAGMA synchronous = OFF");
     database.exec("PRAGMA journal_mode = MEMORY");
     database.exec("PRAGMA count_changes = OFF");
     database.exec("PRAGMA temp_store = MEMORY");
-    //database.exec("PRAGMA foreign_keys = ON");
 
     // Sample query which checks for existence of tables.
     QSqlQuery q = database.exec("SELECT value FROM Information WHERE key = 'schema_version'");
@@ -86,11 +74,11 @@ QSqlDatabase DatabaseFactory::initialize(const QString &connection_name) {
     if (q.lastError().isValid()) {
       qWarning("Error occurred. Database is not initialized. Initializing now.");
 
-      QFile file_init(":/database/init.sql");
+      QFile file_init(APP_MISC_PATH + QDir::separator() + APP_DB_INIT_FILE);
       file_init.open(QIODevice::ReadOnly | QIODevice::Text);
 
-      QStringList statements = QString(file_init.readAll()).split("-- !\n");//--\n");
+      QStringList statements = QString(file_init.readAll()).split(APP_DB_INIT_SPLIT);
-      database.exec("begin transaction");
+      database.exec("BEGIN TRANSACTION");
 
       foreach(QString i, statements) {
         q = database.exec(i);
@@ -101,15 +89,15 @@ QSqlDatabase DatabaseFactory::initialize(const QString &connection_name) {
         }
       }
 
-      database.exec("commit");
+      database.exec("COMMIT");
       qWarning("Database backend should be ready now.");
     }
     else {
       q.next();
-      qDebug("Database connection '%s' to file %s seems to be loaded.",
+      qDebug("Database connection '%s' to file '%s' seems to be established.",
              qPrintable(connection_name),
              qPrintable(QDir::toNativeSeparators(database.databaseName())));
-      qDebug("Database has version %s.", qPrintable(q.value(0).toString()));
+      qDebug("Database has version '%s'.", qPrintable(q.value(0).toString()));
     }
     q.finish();
   }

src/core/defs.h.in

@@ -30,6 +30,8 @@
 #define MAX_ZOOM_FACTOR     10.0
 #define DATABASE_DRIVER     "QSQLITE"
 
+#define APP_DB_INIT_FILE    "db_init.sql"
+#define APP_DB_INIT_SPLIT   "-- !\n"
 #define APP_DB_PATH         "data/database/local"
 #define APP_DB_FILE         "database.db"
 
@@ -55,6 +57,7 @@
 #define APP_SKIN_PATH APP_PREFIX + QString("/share/rssguard/skins")
 #define APP_INFO_PATH APP_PREFIX + QString("/share/rssguard/information")
 #define APP_THEME_PATH APP_PREFIX + QString("/share/rssguard/themes")
+#define APP_MISC_PATH APP_PREFIX + QString("/share/rssguard/misc")
 #define APP_HTML_PATH APP_PREFIX + QString("/share/rssguard/html")
 #define APP_THEME_SYSTEM QString()
 #define APP_FLAGS_PATH APP_PREFIX + QString("/share/rssguard/flags")
@@ -65,6 +68,7 @@
 #define APP_SKIN_PATH QApplication::applicationDirPath() + QString("/skins")
 #define APP_INFO_PATH QApplication::applicationDirPath()
 #define APP_THEME_PATH QApplication::applicationDirPath() + QString("/themes")
+#define APP_MISC_PATH QApplication::applicationDirPath() + QString("/misc")
 #define APP_HTML_PATH QApplication::applicationDirPath() + QString("/html")
 #define APP_THEME_SYSTEM "-"
 #define APP_FLAGS_PATH QApplication::applicationDirPath() + QString("/flags")

src/main.cpp

@@ -5,6 +5,7 @@
 
 #include <QTranslator>
 
+#include "core/databasefactory.h"
 #include "core/defs.h"
 #include "core/debugging.h"
 #include "core/localization.h"
@@ -73,6 +74,8 @@ int main(int argc, char *argv[]) {
   IconThemeFactory::getInstance()->loadCurrentIconTheme(false);
   SkinFactory::getInstance()->loadCurrentSkin();
 
+  DatabaseFactory::getInstance()->addConnection("abc");
+
   // Load localization and setup locale before any widget is constructed.
   LoadLocalization();