JMWE Validator: How to make the child level of Cascading field required?

[Tyler Stephens]

HI!

I have a use case to make a child level of a cascading field required.

I am trying to do this through a validator...

Cascading Field has two options:

• Example 1 (with no children)
• Example 2
  • Child 1
  • Child 2
  • Child 3

How can I build a validator that will only trigger if Example 2 is picked without a child value selected?

Thanks!

[David Fischer · Accepted solution]

Hi @Tyler Stephens 

using JMWE, you can create a Build-your-own (scripted) Validator, with code like this:

!!issue.customfield_12345 && !!issue.customfield_12345.child

where you'll replace customfield_12345 with the custom field ID of your cascading select field (which you can find on the "Issue Fields" help tab below the Jira expression editor).

[Tyler Stephens]

Hi @David Fischer 

One of the Cascading options doesn't have a child option. The code mentioned will cause it to fail when this option is selected. 

If user selects Normal, the JMWE should pass.

However, if Hotfix is selected without selecting a child option, it should fail. 

Cascading field:

[David Fischer]

Unfortunately, you cannot check possible values in a Jira Expression (this is a Jira limitation). Therefore, you'll need to hardcode the value that doesn't require a child option:

!!issue.customfield_12345 && (issue.customfield_12345.value == "Normal" || !!issue.customfield_12345.child) 

[Tyler Stephens]

@David Fischer Thank you!

[Tyler Stephens]

Hi@David Fischer ,

You helped me previously with some JMWE, do you have any advice on this?

Thanks!