CODEWITHSUNDEEP
c++qtsqlite
Hanita
Hanita

Reputation: 179

Writing SQlite Database in Qt

I wrote a SQLite database for client server program. but during debug when it comes to line which I star in code it crash and stop debuging. Could you please help me ?thanks

Here is the code:

bool create = !QFile::exists("Message.dat");

if (!myserver.createConnection())
   return 1;

if (create)    ***"Here return false"****

   myserver.insertMessage();

void insertMessage(QString IPAddrress, QDate date, QString message)
{
    QSqlQuery query;
    query.addBindValue(IPAddrress);
    query.addBindValue(date);
    query.addBindValue(message);
    query.exec();
}

void MainWindow::insertMessage()
{
  QSqlQuery query;

  query.prepare("INSERT INTO messages(IPAddress, date, message)"
                        " values(?,?,?)");
 }

Upvotes: 0

Views: 67

Answers (1)

themantalope
themantalope

Reputation: 1040

Please take a look at this line:

bool create = !QFile::exists("Message.dat");

The way your syntax is written, it says create is true if "Message.dat" does not exist, because you have a ! in front of the exists function. This will return false if "Message.dat" does exist. Try removing the ! operator.

Upvotes: 1

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