QDatabase::transaction()

[sunil.thaha]

How do we know that the trasaction function is called ?
And is there any side effects if It's called more than once as shown below

QSqlDatabase* db = QSqlDatabase::database();
    db->transaction();
    // ......
    // ......
    db->transaction();
    // ......
    // ......
    db->rollback();

QSqlDatabase* db = QSqlDatabase::database();
    db->transaction();
    // ......
    // ......
    db->transaction();
    // ......
    // ......
    db->rollback();

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[Everall]

Hello ,

How do we know that the trasaction function is called ?

You could use something like this :

bool transactionIsActive;
transactionIsActive =db->transaction();
 
if transactionIsActive {
...
}

bool transactionIsActive;
transactionIsActive =db->transaction();

if transactionIsActive {
...
}

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And is there any side effects if It's called more than once as shown below

IMO it will rollback to the first transaction. As if the second will be ignored.
You could test this in your code.

Cheers

[sunil.thaha]

IMO it will rollback to the first transaction. As if the second will be ignored.
You could test this in your code.

Yes it's ignoring all calls to transaction() untill a commit()/ rollback is called.

Thanks