How can I set a numerical value for a select list?

Question

I've got a select list set up as a custom field in Jira and wish to use it in Greenhopper's statistical burndown charts.

The specific field that I'm implementing is a "T-Shirt Size" field for story estimation.  I have started to follow the steps here but now need to attach numbers so I can use it for calculations / charts.

How can I set up a mapping between a textual label and a numerical value in a Jira custom field?

Nic Brough -Adaptavist- · Accepted Answer

You'll need some code to do that.  There is no "mapping" function - the options on a select list are served up as strings to the things that ask the field for values.

So if you want to put numbers into a list, you need to write a field plugin that will present the data as numbers to the rest of the code, but handle like it's a select list.  (I don't think this is a trick you can do with javascript or anything quick and easy on t the front end)

A lighter option though - set up a standard select list with your values, then set up a numeric field as well.  Call them something similar, and don't put the numeric field on any edit/transition screens, and don't put the select list on display screens.  Then write a small listener or postfunction that will read the select list and populate the numeric in the background (script runner plugin would make that a doddle)