Sort list of linked issues returned from IssueLinkManager

Question

Hello,

I'm creating a Scriptrunner scripted field to list all linked issues of a certain type.

I have no problem getting the linked issues however I'm looking to sort the issue list by a specific field value and it looks to come back sorted by keys.  How can I sort the returned list by a given field?

Im currently getting the list of linked issues using the issuelinkmanager.  Is it possible to sort the returned list based on a certain issue field, like perhaps Sprint?

List<IssueLink> allOutIssueLink = ComponentAccessor.getIssueLinkManager().getOutwardLinks(issue.getId());

PD Sheehan · Answer

It appears that LinkedIssue list is statically typed to a an List (java) rather than a Collection (groovy), so the groovy collection methods are not supported.

So the solution is to transform the linkedIssue list into a goovy collection and then sort that:

def allOutIssues = ComponentAccessor.getIssueLinkManager().getOutwardLinks(issue.getId()).collect{it.destinationObject};

def sprintCf = ComponentAccessor.customFieldManager.getCustomFieldObjectsByName('Sprint').find{it.customFieldType instanceof SprintCFType}

def sortedIssues = allOutIssues.sort{linkedIssue->
  def sprints = linkedIssue.getCustomFieldValue(sprintCf) as ArrayList<Sprint>;
  if(sprints){
     log.info "start: ${sprints.last().startDate}"
     return sprints.last().startDate
   }
   log.info "created $linkedIssue.created"
   return linkedIssue.created
}

I added some protection in case some of the linked issues are not associated with any sprint.

Greg Bailey · Answer

hmm changed to: List allOutIssueLink = ComponentAccessor.getIssueLinkManager().getOutwardLinks(issue.getId()); def sprintCf = ComponentAccessor.customFieldManager.getCustomFieldObjectsByName('Sprint').find{it.customFieldType instanceof SprintCFType} def sortedIssueLinks = allOutIssueLink.sort{linkedIssue-> (linkedIssue.destinationObject.getCustomFieldValue(sprintCf) as ArrayList).last().startDate } And now get this error: java.lang.UnsupportedOperationException at com.google.common.collect.ImmutableList.sort(ImmutableList.java:560) at Script277.run(Script277.groovy:43) Sorry to be such a pain, but this one has my stumped. And note when we get this working I'll have a few different instances of this code sorting on various custom fields. I used sprint as an example. one instance will be sorting on a custom date field.

PD Sheehan · Answer

Sorry... my bad. I obviously didn't test it before posting.

You just need to get the destination issue object before getting the sprint field value.

Replace that failing line with:

(linkedIssue.destinationObject.getCustomFieldValue(sprintCf) as ArrayList<Sprint>).last().startDate