OK, this is specific:
I have a content type with two fields:
- First is a expiration date field (d-m-y format);
- Second is a select list field: "green, red, yellow, empty"
WHAT I NEED:
When there is 15 days left for the expiration date of a specific node, the select list field from that node should automatically change to "yellow".
Is this possible using, for example, rules module? Is there any other option?