I need to create a condition in Rules that evaluates whether a new file has been uploaded to afile field. The file field has an unlimited value setting and I need to send out notifications to users every time there is a new file.
EDIT After much experimenting, I came to the conclusion that the only way to do this would be by inserting custom PHP code inside the condition that checks if a new file has been uploaded to the field and return true or false.
I stress that checking if a field is changed/updated doesn't do the job, the code needs to check if there has been a new file added. I have been reading the Field API and it might be that "columns" is what needs to be compared, but I still need a lot of help with this.
