Repo.insert returning preloaded associations?

Question

Repo.insert(changeset)

returns {:ok, struct}, but struct has no preloaded associations. Am I forced to select query to preload it's associations? Or can I avoid a useless query somehow?

Concent

You are going to have to call Repo.preload/3 yourself. – Sanjak

|> Repo.insert |> Repo.preload(:posts) like this? – Concent

Yup, like that. BUT, you just inserted the recorded, it is most likely there is nothing to preload. :) So you can also explicitly set the field to an empty list, if you want to. – Neuman

If you use Repo.insert!, yes. If you just use Repo.insert, you are going to have to unwrap the tuple first. @JoséValim, It could belong_to another record, so it is possible there is something to preload. – Sanjak

or a cast_assoc – Bituminous

@Bituminous cast_assoc would only cast a related record but not preload it when inserting. – Gar

@Gar no i was replying to José and Justin. There would be something to preload even if it wasn't belongs_to, if you were using cast_assoc on it – Bituminous

@Bituminous apologies mate, yeah, in this case you're right :) – Gar