Enrolment

Hi

I am usign external database and need a little modificaton, instead of unenroll a student in Moodle when he is unenrolled in the external database, just deny acces to the course and mark this student with some diferent color, sometimes they cancel and come back to the course so they would not loose their data, assignment files etc....

I open a issue: http://tracker.moodle.org/browse/MDL-18988

Will it be a good solution to create e new collum in the role_assignments table (deny collum tynyint wich values would be 0 or 1), or there is more simpler solutions?

Thank´s in advance