How can you limit amount of child?

[yukitoto]

I want to limit child amount.

object false
child @chat_groups, root: :chat_groups, object_root: false do
  child :messages, root: :messages, object_root: false do
    attributes :id
  end
end

[krzysiek1507]

@yukitoto could you explain?

[yukitoto]

ChatGroup has many Messages.
I want to limit messages limit to 40.
if use above snippet, all messages will send.
But I don't know how to limit messages.

[yukitoto]

@krzysiek1507 Where you need more explanation?

[ieglonew01f]

@yukitoto

try this it worked for me.
https://stackoverflow.com/questions/10871721/limit-amount-of-childs-in-rabl