How to add edit listener to one field for one project

[mliebelt]

We want to have the following:

1. When a field (with a user ID) is edited
2. a function should be called to lookup the email address of that ID
3. and save that in a (read-only) field.

I have read some documentation about event listeners, and I am not quite sure if that will work in that way.

Does any one know some solution to our problem at hand?

[Alexey Matveev]

You can develop a listener. It will do the job. Catch the issue updated event and make all changes

[mliebelt]

Thank's for your input. How about the implementation just for one project? As I understand, an event listener is just some code, how is that included then in the configuration? Where? 

I know how to add post-functions in a workflow, but an event listener is there all the time. We have the requirement to implement it only for one (or a few projects), not for all.

[Alexey Matveev]

You would need a plugin like Power Scripts or Scriptrunner. Or you can develop your own plugin.

Power Scripts:

https://confluence.cprime.io/display/JJUPIN/SIL+Listeners

Scriptrunner:

https://scriptrunner.adaptavist.com/latest/jira/listeners.html#_custom_listeners

Plugin:

https://developer.atlassian.com/server/jira/platform/writing-jira-event-listeners-with-the-atlassian-event-library/

[mliebelt]

Thank you a lot for the resources, I will have a look at it. Seems that I have to solve the customization for a project by myself, but perhaps this is not so difficult to do.