How to validate that one of a set of Components is included with simple script validator?

[Samuel Schneider]

Hi there,

I have a set of Components, say 
Component a
Component b 
Component c 

Component 1
Component 2

From the Components a, b, c exactly 1 has to be provided, otherwise I need an error. From Components 1, 2 they can be set, but not necessarily. 

To start with, it would already be good if a validation works to check that one of the above components are provided. 

Would be great to get help on this issue as I just do not have a clue about how the script runner stuff works and also cannot find any useful documentation.

Thanks in advance!

Samuel

[Samuel Schneider]

This already helped, but is not the full solution:

issue.components*.name.contains('a') ||
issue.components*.name.contains('b') ||
issue.components*.name.contains('c')

[Alexander]

I'd like to know it,too !!

[Samuel Schneider]

Additional info, I tried the following, but no idea how I can write an "OR":

issue.components*.name.contains('a')
issue.components*.name.contains('b')
issue.components*.name.contains('c')

Now only works if all 3 are present which is not the idea..