fix: has many relation with driver.Valuer

[thecampagnards]

Hello,
I have some trouble to use driver.Valuer on has many.
Here a pr, tell me if it's the wrong place
Thx !

[Tiscs]

LGTM.

Thanks for your contribution.

Based on the unit tests you provided, I ran some tests. Before the indirectFieldValue was modified, the Key value type in the User model's baseValues was inconsistent with the Deck model's structKey value type, causing parkStruct to return an error when matching.

I also tested the case where User.DeskID was a sql.NullInt64{Valid: false} or defined as *int64, and the code ran as expected.

I think this fix is ​​correct, @vmihailenco what do you think?

[thecampagnards]

LGTM.

Thanks for your contribution.

Based on the unit tests you provided, I ran some tests. Before the indirectFieldValue was modified, the Key value type in the User model's baseValues was inconsistent with the Deck model's structKey value type, causing parkStruct to return an error when matching.

I also tested the case where User.DeskID was a sql.NullInt64{Valid: false} or defined as *int64, and the code ran as expected.

I think this fix is ​​correct, @vmihailenco what do you think?

Thx ! Do you want me to add a Valid: false test ?
Thank you for checking the PR !