How to reload model after having inserted a list of child models in it?

Questions / Help
1

Suppose, I have an Article and Comment.


a1 = Repo.get(Article, 123)
cm1 = a1.comments


cm2 = get_new_comments()
Enum.each(fn c ->
  
  # insert comment to Article a1

end)

# ??? how to reload a1 without additional overhead?

I already have loaded a1 and I have a list of new comments. After inserting the new comments, how can I make a1 change its state such that it becomes aware of the new comments.

I could do that by callling Repo.get(Article, 123) again. My question, however, how to avoid this additional db request?

2

You could always just put the things you inserted onto the a1 structure itself in whatever form you want. :slight_smile:

%{a1|
  comments = cm2 # or process it as you need
}