Hi I am trying to use context receivers with Expos...

# server

[Laurent Thiebaud]

Hi I am trying to use context receivers with Exposed in order to pass the transaction
What would be great, would be to have optionally a transaction in the context, something like

context(Transaction?)
fun doStatementReuseOrCreateTransaction(statement: suspend Transaction.() -> Unit) {
  if (this@Transaction == null) {
    openTransaction {
      statement()
    }
  } else statement()
}

However as soon as I make the context optional (with the ? ) then intellij is lost and doesn't understand this@Transaction anymore
is there any way to make it work?

[dave]

If you create an interface to wrap your transaction and then pass that as the context, you should be able to implement it in 2 ways - one using a transaction and one not. 🙃

[Laurent Thiebaud]

😅 so easy trick thanks!

[dave]

I got this trick from @dmcg 🙃 https://youtube.com/@RefactoringDuncan?si=_6MI12foykd8pGnZ

[dave]

(there's an entire few videos on this technique)