How do I add order by ASC or DSC in my groovy script?

[Shahriar]

Hi folks, 

I have a groovy script that works great for me and gives me what I need. I am trying to make a little change though. It displays a table for me with all the data but I need it in ASC order of the "Product Portfolio" column. Below are the full script and I am also attaching a screenshot of how the table looks like. Any help would be really appreciated. I hope everyone is staying safe during this crazy pandemic time. 

Thanks, 

Shahriar

--------start script -------

import com.atlassian.jira.component.ComponentAccessor
import groovy.xml.MarkupBuilder

def issueLinkManager = ComponentAccessor.getIssueLinkManager()
def links = issueLinkManager.getOutwardLinks(issue.id)

def writer = new StringWriter()
def xml = new MarkupBuilder(writer)

if(!links){
return null
}

xml.style(type:"text/css",
'''
#scriptField, #scriptField *{
border: 1px solid black;
}

#scriptField{
border-collapse: collapse;
}
''')

xml.table(id:"scriptField"){

tr{
th( "Key")
th("Summary")
th("Status")
th("Product Portfolio")
th("Target Delivery Date")
th("Fiscal Year")
th("Quarter")

}

links.each {issueLink ->

def productPortfolio = ComponentAccessor.getCustomFieldManager().getCustomFieldObject(15327)
def targetDeliveryDate = ComponentAccessor.getCustomFieldManager().getCustomFieldObject(15103)
def fiscalYear = ComponentAccessor.getCustomFieldManager().getCustomFieldObject(14402)
def quarter = ComponentAccessor.getCustomFieldManager().getCustomFieldObject(15326)
def keyInvestmentArea = ComponentAccessor.getCustomFieldManager().getCustomFieldObject(15718)
def additionalCategory = ComponentAccessor.getCustomFieldManager().getCustomFieldObject(15851)
def productOwner = ComponentAccessor.getCustomFieldManager().getCustomFieldObject(10000)

def linkedIssue = issueLink.destinationObject
if (linkedIssue.issueType.name == "Epic")
tr{
td(linkedIssue.key.toString())
td(linkedIssue.summary.toString())
td(linkedIssue.status.getName().toString())
td(linkedIssue.getCustomFieldValue(productPortfolio))
td(linkedIssue.getCustomFieldValue(targetDeliveryDate))
td(linkedIssue.getCustomFieldValue(fiscalYear))
td(linkedIssue.getCustomFieldValue(quarter))

}
}
}

return (writer.toString())

-------end script-----

[Matt Doar]

Sorting by that custom field would need to be done in the JQL that finds your issues. The script you show is processing each issue

[Shahriar]

Hi Matt, 

Thanks for your response. 
What should I change in my script to sort the data by that field? 
You mentioned that it needs to be done in the JQL, how and where exactly? 

Thanks, 

Shahriar