How to write a validator for Jira on a script runner to calculate the number of issues by condition?

[Viewer]

You need a validator script to count the number of search tasks
(status = "IN PRODUCTION" AND assignee in (currentUser ()))
I want to check the condition for no more than 3 tasks

[Payne]

This ought to work; it will return true, and thus pass validation, if the current user has 3 or fewer "In Production" issues assigned to him. Otherwise it will return false and fail validation.

import com.atlassian.jira.bc.issue.search.SearchService
import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.issue.search.SearchException
import com.atlassian.jira.web.bean.PagerFilter

final jqlSearch = "assignee = currentUser() and status = \"IN PRODUCTION\""
final maxIssues = 3

def user = ComponentAccessor.jiraAuthenticationContext.loggedInUser
def searchService = ComponentAccessor.getComponentOfType(SearchService)

def parseResult = searchService.parseQuery(user, jqlSearch)
if (!parseResult.isValid()) {
log.error('Invalid query')
return null
}

try {
def results = searchService.search(user, parseResult.query, PagerFilter.unlimitedFilter)
def issues = results.results
return issues.size() <= maxIssues
} catch (SearchException e) {
e.printStackTrace()
null
}

[Aleksey Golomidov]

Hi, thanks a lot for the validator script. He looks like a worker. I paste it into the Custom script validator form and it doesn't work.
What am I doing wrong?

[Aleksey Golomidov]

scrin

[Payne]

What do you mean by "it doesn't work"? Do you receive an error, or is it not stopping the issue from being assigned to someone with > assigned tasks?

[Aleksey Golomidov]

It not stopping the issue from being assigned to someone with> assigned tasks

[Payne]

You ARE changing the assignee during a transition, correct? This validator will not prevent someone from simply changing the assignee.

[Martin Bayer _MoroSystems_ s_r_o__]

Hi @Viewer I will need better description of your use case. Could you describe it in steps? You are kind of mixing Validators and Conditions (which have different meaning in Jira). So can you describe what/when should be diplayed?