I would like to give back to my students a pdf file for feedback to their assignment. I have notice that I could do that by putting it directly in the directory for that assignment for each student in moddata/assignment. Every student see his submission and the feedback file when he click on the assignment.
Is this dangerous for the integrity of the Moodle database? I ask this question because, when i tried that, not long afterward, we had some little problems with the database but I don't know if this was the cause...
Is this a plan option for the future?
Thank you in advance.