Access Custom Field Variables of another Card in Butler Edited

[Vongsawat]

Is there a way to directly access custom field variables such as {{%this}} in Butler, but in conjunction with Find/Lookup? Some equivalent of {found{%this}}?? {{found%this}}???

[Mike · Accepted solution]

Not exactly—right now, Custom Fields variables like that {{%foo}} will only return the value of the current card Butler is looking at. For example, if you tell Butler to

find a card named X, and post comment {{%text}}

it will post the value of the Test custom field on the found card, not the original, which it sounds like is what you want to do.

The only way to apply the value of a custom field on another card is to use {customfieldvalue}, but that specifically requires a trigger like when a custom field is xxx

For example:

when custom field x is set, find card y and set custom field x to {customfieldvalue}

Do feel free to reach out at https://trello.com/contact and we'll be glad to take a closer look at what you're doing!

[michaja_broertjes]

Not sure if this is anything like you're looking for, but I found a way to create a sum total off a custom field set in multiple cards in a certain list.

The use case is for invoicing, so I have one list called 'Line items' and one (empty) list called 'Total'. When a card is added to 'Total', Butler will rename the card to 'Total', link all the cards in 'Line items' and then for each linked card set the custom field 'Subtotal' to the value of 'Subtotal'. This doesn't change the value but it will cause another rule to trigger, because it triggers whenever the custom field 'Subtotal' is set. That rule then finds the card 'Total' and updates a custom field 'Total' with the value of 'Total' + {customfieldvalue}. So this only works with the first card in the list 'Total'.

Here are the two rules:

when a card is added to list "Total" by anyone, rename the card to "Total", collect all cards in list "Line items" into linked items in checklist "Line items", for each card linked from an item in checklist "Line items", set custom field "Subtotal" to "{{%Subtotal}}"

when custom field "Subtotal" is set by anyone, find a card titled "Total" in list "Total", and set custom field "Total" to "{{%Total}} + {customfieldvalue}"

[michaja_broertjes]

I just added this extra action to the first rule:

find a card titled "Total" in list "Total", and remove the "Line items" checklist from the card

This removes the checklist that was created earlier, but maybe you like it if it stays with the card, so it's optional.