I'm wanting to increment the value of a custom field by one as a post function in a workflow. I was initially thinking of creating a Scripted Field custom field type and incrementing that way but it doesn't look like there's a way to retain that field's value (i.e. it has to be calculated using other fields in real-time).
I was then thinking of using a "Text Field (read only)" and using a Groovy script in the post function to increment. But because that's text, I'm assuming there's no way to numerically evaluate that in a JQL (e.g. give me all issues where that value > 3).
Is there anything else I can do? I basically want the equivilent of the read only text field but have it be a read only number field.
You've worked your way through all the clever ways you might do this, but missed one possible approach!
Use a normal number field. Have a script that updates it. Do not put the field on any screen other than "view", so the only way to update it is with your script.
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