Auto update a subtask when the parent is updated WITHOUT post function?

[Moriah Chandler]

I know I can set fields for subtasks based on the parent during creation. However, when I change the fixVersion for the parent, I want all of the subtasks to be updated also.

I have JJUPIN, ScriptRunner, etc installed and I want to use a listener to achieve this so that it doesn't require a postfunction.

Every script sample I have seen only updates the field when the subtask itself is changed (not the parent) - example:

https://answers.atlassian.com/questions/155302/how-do-i-default-the-value-of-a-sub-task-field-to-the-value-of-a-parent-field

I have tried to modify the code, but I am not a developer :(

I have also tried to use a SIL listener but get the same result - the subtask fixVersion is not updated when the parent issue is changed.

The SIL listener:

if(isNull(parent)) {
   fixVersion=customfield_11901;
} else {
   fixVersion = parent.fixVersion;
}

(The customfield_11901 is a string that contains the Sprint name because our fixVersion = Sprint and we don't want to have to set that field manually.)

Can anyone help please?

[Moriah Chandler · Accepted solution]

Here is what we ended up with - using SIL:

fixVersion=customfield_11901;
if(isNotNull(parent)) {
   return;
}
for(string subtask in subtasks(key)) {
    %subtask%.fixVersions = fixVersions;
}

Where customfield_11901 is a string field with the sprint name.

[Nic Brough -Adaptavist-]

You need to do the listening the other way around. Listen for events on the PARENT issue, then check if it has subtasks, and if it does, iterate through them with updates.