Can't create a .db file in assets folder - c++

Question

I am trying to create a quizz.db file in assets folder by first creating a temporary quizz.db in data folder and then creating tables inside it and then copy it to the assets folder. By debugging the code it shows that the folder is created. But I can't find it in assets folder. Here is the code,
#include <bb/cascades/Application>
#include <bb/cascades/QmlDocument>
#include <bb/cascades/AbstractPane>
#include <bb/data/SqlDataAccess>
using namespace bb::cascades;
using namespace bb::data;
SQLTest::SQLTest(bb::cascades::Application *app): QObject(app)
{
const QString fileName = QString("quizz.db");
QString dataFolder = QDir::homePath();
QString newFileName = dataFolder + "/" + fileName;
QTemporaryFile file(newFileName);
// Open the file that was created
if (file.open())
{
// Create an SqlDataAccess object
SqlDataAccess sda(newFileName);
// Create a table called Employee in the database file
sda.execute("CREATE TABLE Employee( firstName VARCHAR(50),lastName VARCHAR(50), salary INT);");
// Insert employee records into the table
sda.execute("INSERT INTO Employee (firstName, lastName, salary) VALUES (\"Mike\", \"Chepesky\", 42000);");
sda.execute("INSERT INTO Employee (firstName, lastName, salary) VALUES (\"Westlee\", \"Barichak\", 55000);");
sda.execute("INSERT INTO Employee (firstName, lastName, salary) VALUES (\"Ian\", \"Dundas\", 47000);");
if(sda.hasError())
{
}
else
copyFileToAssetsFolder("quizz.db");
}
}
void SQLTest::copyFileToAssetsFolder(const QString fileName)
{
QString appFolder(QDir::homePath());
appFolder.chop(4);
QString originalFileName = appFolder + "app/native/assets/" + fileName;
QFile newFile(originalFileName);
// If I enable this `if` condition the code satisfies it and removes the quizz.db file and then it satisfies the next `if` condition and successfully copies the quizz.db file from `data` folder to `assets` folder.
/*if(newFile.exists())
QDir().remove(originalFileName);*/
// this `if` condition is not satisfied. Which should mean the quizz.db file has been created on assets folder.
if (!newFile.exists())
{
// If the file is not already in the assets folder, we copy it from the
// data folder (read and write) to the assets folder (read only).
QString dataFolder = QDir::homePath();
QString newFileName = dataFolder + "/" + fileName;
QFile originalFile(newFileName);
if (originalFile.exists())
{
// Create sub folders if any creates the SQL folder for a file path like e.g. sql/quotesdb
QFileInfo fileInfo(originalFileName);
QDir().mkpath (fileInfo.dir().path());
if(!originalFile.copy(originalFileName)) {
qDebug() << "Failed to copy file to path: " << originalFileName;
}
} else {
qDebug() << "Failed to copy file data base file does not exists.";
}
}
// mSourceInDataFolder = newFileName;
}
If I enable the commented if condition of copyFileToAssetsFolder function it removes already created quizz.db file in assets folder (which Im unable to find) and goes inside the next if condition and copies the quizz.db created on the data folder to assets fodler. But in any case I can't find the quizz.db in assets folder. I really need help with this quickly. Thanks.

Answer 1

Files in asset can not be modified

Answer 2

It seems its not possible to modify assets folder mentioned in here Now I am creating my db file in the data folder as it is writable.