How to add watchers to a jira ticket starting from the email in a cascading cf

[DOMENICO TROISI]

Hi to all,

in a cascading custom field (opening mask) is contained one or more email of jira user. Is it possible, to add all the users contained in the second field of cascading as whatchers of a ticket via script post function?
I believe that from the email it is necessary to extract the user code before adding it as a watcher.

Many thanks! Regards,

Domenico

[Carmen Creswell [Adaptavist] · Accepted solution]

Hi Domenico! 

Here is a way that worked in my instance: 

import com.atlassian.jira.bc.user.search.UserSearchService
import com.atlassian.jira.component.ComponentAccessor

def customFieldManager = ComponentAccessor.getCustomFieldManager()
def cfValue = customFieldManager.getCustomFieldObjectsByName("CascadingSelect")[0].getValue(issue)

def addresses = cfValue.get(null)?.childOptions*.value

def watcherManager = ComponentAccessor.getWatcherManager()
def userSearcherService = ComponentAccessor.getComponent(UserSearchService)

def theUser

for (def i = 0; i < addresses.size(); i++) {
 theUser = userSearcherService.findUsersByEmail(addresses[i])
 // Using theUser[0] because the User is an ArrayList of a single ApplicationUser
 watcherManager.startWatching(theUser[0], issue)
}

You'll just need to change the name of the Cascading Select field to the name that matches the one in your instance.