Tutorial on looping over collections

This tutorial will guide you through writing Groovy scripts that loop over collections.

On this page:

Looping over a collection to find values that satisfy a condition

This section of the tutorial guides you through writing a loop to count the options of a multi-valued field that satisfy a condition. Imagine a functional use case where you want to display the number of released versions for a project.

Writing the script

Step 1 - Navigate to the condition

1. Go to the Administration icon  and click on it.
2. Locate Add-ons from the menu and click on it.
3. Locate JIRA MISC WORKFLOW EXTENSIONS on the left panel.
4. Click on Groovy script tester.

Step 2 - Write the script in the editor

1. Write the following script in the editor.

   def count = 0;
   for(i=0;i<issue.getAvailableOptions("versions").size();i++){
     if(issue.getAvailableOptions("versions")[i].isReleased()){
       count++
     }
   }
   count

Step 3 - Test your script

1. Click on Test Groovy Script.
2. Input the issue key GIJ-1
3. Click on Test
4. The following result will be displayed.
5. 

Looping over a collection to find whether a particular option is selected or not

This section of the tutorial guides you through writing a loop to find whether a particular check box of a check box type field is selected or not. Imagine a functional use case where you want check whether Printing has been scheduled in the tasks.

Writing the script

Step 1 - Navigate to the condition

1. Go to the Administration icon  and click on it.
2. Locate Add-ons from the menu and click on it.
3. Locate JIRA MISC WORKFLOW EXTENSIONS on the left panel.
4. Click on Groovy script tester.

Step 2 - Write the script in the editor

1. Write the following script inGroovy script.

   for(i in issue.get("Scheduled tasks")){
     if(i.value == "Printing"){
       return true
     }
     else{
       return false
     }
   }

Step 3 - Test your script

1. Click on Test Groovy Script.
2. Input the issue key GIJ-1
3. Click on Test
4. The following result will be displayed.
5.