Web2py models

• db.py - Core tables and functions
  • courses table
• db_ebook.py - Runestone eBook Tables
  • useinfo
  • user_state
  • timed_exam
  • mchoice_answers
  • fitb_answers
  • dragndrop_answers
  • clickablearea_answers
  • parsons_answers
  • codelens_answers
  • shortanswer_answers
  • unittest_answers
  • payments
  • lp_answers
  • invoice_request
  • editor_basecourse
  • course_attributes
  • selected_questions
• grouped_assignments.py - assignment-related tables
  • question_grades