Calculate/update parent issue field on subtask creation/update

[Erwin Saegesser]

I want to set a custom field in the parent issue whenever subtasks are created or updated. The custom field should reflect the number of open subtasks.

1-Create issue Parent-1 > Custom field "NumSubtasks" is "0"

2-Create subtask Child-1 > Custom field "NumSubtasks" of Parent-1 becomes "1"

3-Create subtask Child-2 > Custom field "NumSubtasks" of Parent-1 becomes "2"

4-Transition subtask Child-1 from Status "open" to "closed" > Custom field "NumSubtasks" of Parent-1 becomes "1"

5-Transition subtask Child-2 from Status "open" to "closed" > Custom field "NumSubtasks" of Parent-1 becomes "0"

Is there a post-function and/or script which I could use? 

[vishal]

Hey Erwin have you got the any answer for this?

[Erwin Saegesser]

We solved it by using the Workflow Plugin JMWE.

[vishal]

Hey thanks for your reply i would surely go with JMWE.