How to validate some set of string in a text field?

[Teja]

Hello,

I am trying to add a validation which catches 'Caused By Explanation' string inside a multi text field. And throws an exception to show users saying 'Caused By Explanation' is not a valid value.

How to achieve this? 

[Leo · Accepted solution]

Hi @Teja,

Below snippet may help you

import com.atlassian.jira.component.ComponentAccessor
import com.opensymphony.workflow.InvalidInputException

def cField = ComponentAccessor.customFieldManager.getCustomFieldObjectByName("Caused By Explanation")
def value = issue.getCustomFieldValue(cField) as String

if (value == "Something"){
      return true
}
else{
      throw invalidInputException = new InvalidInputException("Custom Error")
}

 BR,

Leo

[Teja]

@Leo Thanks, It worked.

Regards

Tejas Naik