Read-only cusom field + refresh

Hello,
This is my first question, and I don’t have a lot of experience with RT.

My RT is 4.2.5

What do I need to achieve:
I have some Custom Fields for my Incidents queue
Classification
Current Effect
Projected Effect
Criticality
Incident Rating

I need Incident Rating to be read-only and I need it to auto-populate its
value depending on values of the other custom fields.

I’ve found this article:
http://requesttracker.8502.n7.nabble.com/Howto-Pseudo-read-only-custom-fields-td45103.html
But I it was written for an older version of RT and I can’t figure out how
to apply it to my RT, also it would solve only part of the problem

Thanks in advance

View this message in context: http://requesttracker.8502.n7.nabble.com/Read-only-cusom-field-refresh-tp57778.html

My RT is 4.2.5

What do I need to achieve:
I have some Custom Fields for my Incidents queue
Classification
Current Effect
Projected Effect
Criticality
Incident Rating

I need Incident Rating to be read-only and I need it to auto-populate its
value depending on values of the other custom fields.

I’ve found this article:
http://requesttracker.8502.n7.nabble.com/Howto-Pseudo-read-only-custom-fields-td45103.html
But I it was written for an older version of RT and I can’t figure out how
to apply it to my RT, also it would solve only part of the problem

As that thread suggests, just don’t give ModifyCustomField to your
users for Incident Rating.

Write a Scrip to change the value for it based on the submitted values
of the other fields. This will require some perl knowledge to do.

-kevin