Using `OR` instead of `AND` in the association

topclaudy / compoships

Multi-columns relationships for Laravel's Eloquent ORM

MIT License

1.12k stars 132 forks source link

Using `OR` instead of `AND` in the association #129

Open undjike opened 3 years ago

undjike commented 3 years ago

Please, is it possible to use OR in the association?

foreing_key_1 = local_key_1 OR foreing_key_2 = local_key_2

undjike commented 3 years ago

Pls, need help 🙏

undjike commented 3 years ago

@topclaudy, what about this?

topclaudy commented 3 years ago

@undjike Some people have requested different association logics. Can you please explain the use case(s) for this?

undjike commented 3 years ago

OK, let me explain. I have a transaction table with some fields

id
type (withdraw or deposit)
amount
etc

When we have a transfer, both deposit and withdrawal are performed in the accounts concerned by the operation. So, this is the structure of the transfer table...

id
withdraw_id
deposit_id
fees
etc

Then, when I'm to retrieve (with eager loading) the transfer associated to a transaction, I have to join using transaction.id = transfer.withdraw_id or transaction.id = transfer.deposit_id.

That's the point.

topclaudy commented 3 years ago

@undjike Thanks for the explanation. Please check discussion on https://github.com/topclaudy/compoships/issues/76 and https://github.com/topclaudy/compoships/issues/67. Such features are not on the roadmap.

neacon-ivalkenburg commented 1 year ago

Would really like to be able to use OR. But i can see why it could be a pain to add due to associating models.