how to add validation for certain link type and status?

[jun lee]

I want to add validation (groovy script) when issue A and issue B linked like this.

• issue A link type : contains
• issue B link type : is contained in
• issue B should be completed before completion of issue A
• if issue B link type is not "is contained in", issue A can be completed regardless of status of issue B

I added condition like this, and it works. However I like to add validation, not condition.