Opening a SQLite from bundle using Swift - swift

Question

I have a .sqlite file in my app bundle. I seem to open the file, but I can not access the tables in the file.
let fileURL = try! FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false).appendingPathComponent("test.sqlite")
//opening the database
if sqlite3_open(fileURL.path, &db) == SQLITE_OK {
print("opening database")
}
let queryString = "SELECT * FROM Table1"
var stmt:OpaquePointer?
//preparing the query
if sqlite3_prepare(db, queryString, -1, &stmt, nil) != SQLITE_OK{
let errmsg = String(cString: sqlite3_errmsg(db)!)
print("error preparing insert: \(errmsg)")
return
}
This gives following error message: "error preparing insert: no such table: Table1"
As I see it, the databse is found and opened, but cannot be accessed. As I see it from other posts at Stackoverflow, this should work
EDIT: I now see that if I misspell the databse name from test.sqlite to ttestt.sqlite, I still get the same error. Meaning the database is not found. What is wrong with this line?
let fileURL = try! FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false).appendingPathComponent("test.sqlite")

Answer 1

The solution was to copy the database from the bundle to the documnents directory:
let bundleURL = Bundle.main.url(forResource: "test", withExtension: "sqlite")!
try manager.copyItem(at: bundleURL, to: documentsURL)
rc = sqlite3_open_v2(documentsURL.path, &db, SQLITE_OPEN_READWRITE, nil)