Track user's action
问题 In our company I have to extend the functionality of existing Drupal 7 website. Here are the requirements: The business needs to inform all staff members, on different topics using uploaded to the Drupal site documents. (I already implemented this requirement.) The business needs to know, which staff members have read a document and which still have not. They need a report like this: Document 1 25/50 (25 from 50 staff members still didn't read the file) Document 2 50/50 (all staff members did