set customfield on transition screen activiation

[werner kolze]

hello there - 

I was wondering whether a customfield can have its value set, once the user presses the appropriate transition button, which is linked to a transition screen. 

I would like to pre-set a value once the screen is activated.
to elaborate:

After a user creates an issue, then several choices, in form of transition buttons are on the screen, say then the user presses the "Standard" button, a transition screen pops up and I want then a customfield called "Change Category" to be set to "Standard". I am using this in conjunction with the data gathered on that screen and I do not need it "AFTER" the transition button is pressed.

 Hope this makes sense

[Andrii Mishak]

In our plugin we did it by two ugly enough methods:

1. extend Custom Field class, and overrride methods to get value to view

   public class MyCustomFiled extends AbstractSingleFieldType<DomainClass> {
       @Override
       protected DomainClass getObjectFromDbValue(@Nonnull Object o)
       public DomainClass getValueFromIssue(CustomField field, Issue issue) {...}
   }

2. Use JIRA.Events.NEW_CONTENT_ADDED event

   JIRA.bind(JIRA.Events.NEW_CONTENT_ADDED, function () {
       var issueTypeFields = document.getElementsByName('issuetype');
       if (issueTypeFields) {
       var issueTypeField = issueTypeFields[issueTypeFields.length - 1];
       try {
           if (issueTypeField instanceof HTMLSelectElement) {
               if (issueTypeField.options.length) {
                  ...
               }
           }
       } catch (e) {
       }
   }

The thing is what our custom fields default values are depend on another custom fields values...

[werner kolze]

what is your plugin? do you need to update the custom class every time you update Jira? the snippets here dont make quite sense to me, sorry, I would not know where to take this from here

[Andrii Mishak]

It is internal plugin, we do not publish it. First one is creation special custom field type. Second one is jQuery hook on page load.