Merge pull request #180 from t-h-i-s-u-s-e-r-n-a-m-e-i-s-c-a-n-c-e-r/patch-1

Add a check for file writability to the DB to confuse users slightly less.

core/include/db_manager.h

@@ -29,6 +29,7 @@
 #include <QSqlDriver>
 #include <QSqlError>
 #include <QSqlQuery>
+#include <QFileInfo>
 
 /**
  * @brief A class used to handle database interaction.

core/src/db_manager.cpp

@@ -20,6 +20,11 @@
 DBManager::DBManager() :
     DRIVER("QSQLITE")
 {
+    const QString db_filename = "config/akashi.db";
+    QFileInfo db_info(db_filename);
+    if(!db_info.isReadable() || !db_info.isWritable()) 
+        qCritical() << tr("Database Error: Missing permissions. Check if \"%1\" is writable.").arg(db_filename);
+
     db = QSqlDatabase::addDatabase(DRIVER);
     db.setDatabaseName("config/akashi.db");
     if (!db.open())