How to Block/Enable Workflow Transition Based on Linked Issue Status using a ScriptRunner Condition

[Kmmaughs]

I need to enable an issue transition based on the status of its linked issues using ScriptRunner.

• If the Linked Issue relationship reads "Is Blocked By" (from the view of the issue) and the status of the Linked Issue(s) is not "Done", then the workflow transition should not appear. 
• If the Linked Issue relationship reads "Is Blocked By" (from the view of the issue) and the status of the Linked Issue(s) is "Done", then the workflow transition should appear.

After reading tons of examples and other forums, it seems this should be straightforward, but I'm getting an error. 

Following ScriptRunner's documentation here: https://scriptrunner.adaptavist.com/5.5.9/jira/recipes/workflow/conditions/all-dependent-issues-resolved.html

My steps should be to add a "Script Condition [ScriptRunner]" > "Simple scripted condition" Condition on the Transition workflow step. This condition should look like this:

import com.atlassian.jira.component.ComponentAccessor 
import com.atlassian.jira.issue.link.IssueLink 

def linkType = ["Blocks"] 

def linkMgr = ComponentAccessor.getIssueLinkManager() 
for (IssueLink link in linkMgr.getInwardLinks(issue.id)) { 
  if (linkType.contains(link.issueLinkType.name)) { 
    if (!link.sourceObject.resolutionId) { 
      passesCondition = false 
    } 
  } 
}

However, I'm getting this error appearing on the passessCondition = false line:

[Static type checking] - The variable [passesCondition] is undeclared at @ line 10, column 7. 

Regardless, I've saved and applied the condition. The behavior I'm seeing is the workflow transition does not appear (as expected, initially), but does not become available once I've marked the linked issues "Done" (resolved). 

I tried declaring the variable and applying a condition that looks like this:

import com.atlassian.jira.component.ComponentAccessor 
import com.atlassian.jira.issue.link.IssueLink 

def linkType = ["Blocks"] 
def passesCondition = true

def linkMgr = ComponentAccessor.getIssueLinkManager() 
for (IssueLink link in linkMgr.getInwardLinks(issue.id)) { 
 if (linkType.contains(link.issueLinkType.name)) { 
   if (!link.sourceObject.resolutionId) { 
      passesCondition = false 
   } 
  } 
}

There was no error when I saved the condition, but the workflow behavior was the same: the workflow transition never became available after I closed/marked done/resolved all linked issues that were blockers. 

Here's some version information:

JIRA Version 8.2.1

ScriptRunner Version 5.5.9.1-jira8

(We're server-based).

Admittedly, I'm very new to ScriptRunner; would appreciate any help. 

[Kmmaughs · Accepted solution]

Got it working:

import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.issue.link.IssueLink

def linkType = ["is blocked by"]

def linkMgr = ComponentAccessor.getIssueLinkManager()
for (IssueLink link in linkMgr.getInwardLinks(issue.id)) {
if (linkType.contains(link.issueLinkType.inward)) {
if (! link.sourceObject.resolutionId) {
passesCondition = false
}
}

}