Question

This is the insert code. It works fine until i close the app and start it again, then all changes are gone. I don’t see any error, could it be some iphone specific issue?

const char *sql = "INSERT INTO offers "
                  "(OfferId, AddressId, ShortDescription, LongDescription, TimeStart, TimeEnd, Created, LastEdit) "
                  " VALUES (?, ?, ?, ?, ?, ?, ?, ?)";


sqlite3_stmt *stmt;
int returnValue = sqlite3_prepare(db, sql, -1, &stmt, NULL);
if(returnValue == SQLITE_OK) {
    for(NSDictionary *offer in offers) {
        sqlite3_bind_int(stmt, 1, [[offer valueForKey:@"OfferId"] intValue]);
        sqlite3_bind_int(stmt, 2, [[offer valueForKey:@"AddressId"] intValue]);
        sqlite3_bind_text(stmt, 3, [[offer valueForKey:@"ShortDescription"] UTF8String], -1, SQLITE_TRANSIENT);
        sqlite3_bind_text(stmt, 4, [[offer valueForKey:@"LongDescription"] UTF8String], -1, SQLITE_TRANSIENT);
        sqlite3_bind_int(stmt, 5, [[offer valueForKey:@"TimeStart"] intValue]);
        sqlite3_bind_int(stmt, 6, [[offer valueForKey:@"TimeEnd"] intValue]);
        sqlite3_bind_int(stmt, 7, [[offer valueForKey:@"Created"] intValue]);
        sqlite3_bind_int(stmt, 8, [[offer valueForKey:@"LastEdit"] intValue]);

        if(sqlite3_step(stmt) != SQLITE_DONE)
            NSLog(@"instertOffers -> sql-error: %s", sqlite3_errmsg(db));
        else
            NSLog(@"added offer with id: %@", [offer valueForKey:@"OfferId"]);

        sqlite3_reset(stmt);
    }
} else {
    NSLog(@"instertOffers -> sql-error: %s", sqlite3_errmsg(db));
}

sqlite3_finalize(stmt);
sqlite3_close(db);

Answer 1

Is the SQLite database file in the AppBundle, if so you will need to copy it to the document directory if you want to make changes.
You can’t write to any files in your app bundle.