Both sqlite3_open_v2 and sqlite3_close are documented to return an error code:
https://www.sqlite.org/c3ref/open.htmlhttps://sqlite.org/c3ref/close.html
However, those were ignored (other than checking whether the operation
succeeded), causing QSqlError::nativeErrorCode() to always be "-1" when there
was an error while opening/closing the database.
Additionally, the error string needs to be read (via sqlite3_errmsg16) in
qMakeError *before* d->access is set to 0, or the databaseText() will always be
"out of memory" no matter what error actually happened.
Task-number: QTBUG-70506
Change-Id: I75cbf178c9711442e640afd26c4502214d20c598
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
49efea26a5