Comments subordinated to comments: do they trigger a record.changed automation?

[j-at-se]

Hi Cerb community!

Context:
I have a "preview" field for the purpose of showing an excerpt of the last message/comment on a ticket. This preview is displayed in the worklist:

So far replies from both users and staff as well as top-level comments, are reflected in this field without issues.

However, when replying to a comment, this doesn't update the field:

I believe that the "target" of a top-level comment is the ticket, but the replies to this comment have a different target: the original comment.

Is this correct?

Am I overthinking this and there's a simpler way to do this?

Here's my record.changed automation:

start:
  log: {{record__type}} :: {{change_type}}
  decision:
    outcome/message:
      if@bool: {{record__type == 'message' and change_type == 'created'}}
      then:
        record.update:
          inputs:
            record_type: ticket
            record_id: {{record_ticket_id}}
            fields:
              preview: {{record_content|strip_lines(prefixes='>')|truncate(128)}}

    outcome/comment:
      if@bool: {{record__type == 'comment'}}
      then:
        record.update:
          inputs:
            record_type: ticket
            record_id: {{record_target_id}}
            fields:
              preview: {{record_comment|truncate(128)}}

The policy:

commands:
  record.update:
    deny/type@bool: {{inputs.record_type is not record type ('ticket')}}
    allow@bool: yes

Thank you in advance for any insight on this.

Cheers!

[Hildy]

I believe that the "target" of a top-level comment is the ticket, but the replies to this comment have a different target: the original comment.

Is this correct?

Yes, that is correct, and it does make what you're doing more complicated - you'd have to also watch for comments being created/updated where the parent is a comment whose parent is a ticket.