Best Way To Update One Attribute On Another Attribute's Change?

Q & A - getting started with Tinderbox
1

I have this code in a prototype’s action:

$Link_url_search=$Link_url + "&search=" + urlEncode($DisplayName);

Looking at the ref, it looks like actions etc are run on a timer. I’m wondering:

  1. If these timers are run conditionally on change
  2. If not, if there’s another event based attribute, similar to $OnAdd, I’ve not noticed

My TB file’s tiny, but just jumped out as something that might be worth strategising early on.

2

No, we don’t have an action hook that runs on an attribute change. Rules, Agents, and Edicts all run periodically; the purpose of Edicts is, in fact, to accommodate actions that would be prohibitive if performed too often.

1 Like
3

Thanks.

If this Action Code’s added to the prototype, how do I get the inheriting note to run in local scope, eg, self.$attribute instead of parent.$attribute?

PS Could be this.
PPS This could be useful.
PPS Part of the problem was when selecting the prototype the note box on the right is just a white square, so I couldn’t see some attributes were already set on the note until I noticed them when switching from the map view back to the outline view. Is this expected or bug?
PPPS Looks like prototype Action code isn’t inherited, but Rule code is.

4

Last piece was resetting one of the notes Rule’s to inherited, overwrote accidentally.

I had to add $Rule to displayed attributes, right click, and then ‘Use Inherited Value’. Maybe there’s a quicker way?

PS Ah! This can be done with Quickstamp too :ok_hand: