def reminder_email(hw_id):
homework = session.query(Homework).get(hw_id)
# get users who haven't completed peer grading
users = set()
for question in homework.questions:
tasks = session.query(GradingTask).join(QuestionResponse).\
filter(QuestionResponse.question_id == question.id).all()
for task in tasks:
grades = session.query(QuestionGrade).filter_by(grading_task_id=task.id).all()
if not grades:
users.add(task.grader)
# send e-mails
users = [session.query(User).get(u) for u in users]
message = '''Dear %s,\n\n''' + request.form['message'].replace("%", "%%") + '''
Best,
Stats 60 Staff
'''
send_all(users, request.form['subject'], message)
admins = session.query(User).filter_by(type="admin").all()
send_all(admins, "%s Peer Assessment Reminder Sent" % homework.name,
"""Hey %s (and other staff),
A reminder e-mail was just sent to the following users to remind them to complete their
peer assessments.\n\n""" + "\n".join(u.stuid for u in users) + """
Sincerely,
OHMS
P.S. This is an automatically generated message ;-)""")
return "Sent reminder to %d recipients. You should have received an e-mail." % len(users)
def assign_tasks(hw_id, due_date, send_emails=False):
homework = session.query(Homework).get(hw_id)
users = session.query(User).filter(User.type == "student").order_by(User.stuid).all()
for q in homework.questions:
# only if this is a peer graded question
if not isinstance(q.items[0], LongAnswerItem):
continue
random.seed(q.id) # setting a seed will be useful for debugging
responsible_kids = list() # did the homework!
irresponsible_kids = list() # didn't do the homework!
# Figure out who did the homework
for user in users:
if get_last_question_response(q.id, user.stuid):
responsible_kids.append(user.stuid)
else:
irresponsible_kids.append(user.stuid)
# Make the assignments for the responsible kids
n = len(responsible_kids)
random.shuffle(responsible_kids)
for i, stuid in enumerate(responsible_kids):
# Make the assignments for this responsible student
for offset in [1, 3, 6]:
j = (i + offset) % n
gt = GradingTask(grader=stuid,
student=responsible_kids[j],
question_id=q.id)
session.add(gt)
# Make the assignments for the irresponsible kids:
# Do so in round robin order, shuffling the responsible students again
# to minimize the number of pairs of students grading together.
random.shuffle(responsible_kids)
for i, stuid in enumerate(irresponsible_kids):
# Make the assignments for this irresponsible student
for offset in range(3):
j = (i * 3 + offset) % n
gt = GradingTask(grader=stuid,
student=responsible_kids[j],
question_id=q.id)
session.add(gt)
# Make all self-assignments
for stuid in (responsible_kids + irresponsible_kids):
gt = GradingTask(grader=stuid,
student=stuid,
question_id=q.id)
session.add(gt)
session.commit()
if not send_emails:
return "Successfully assigned %d students"
# Send email notifications to all the students
send_all(users, "Peer Assessment for %s is Ready" % homework.name[:-1],
r"""Dear %s,
We've made the peer-grading assignments for this week. The assessments
are due {due_date}, and you can start after lecture today at 11:00AM.
You will be able to view your peer's comments on your answers as they
are submitted, but your score will not be available until {due_date}.
At that time, please log in to view and respond to the comments you
received from your peers.
Best,
STATS 60 Staff""".format(due_date=due_date.strftime("%A, %b %d at %I:%M %p")))
# Send email to the course staff
admins = session.query(User).filter_by(type="admin").all()
send_all(admins, "Peer Assessment for %s is Ready" % homework.name[:-1],
r"""Dear %s (and other members of the STATS 60 Staff),
Just letting you know that the peer assessment for this week was just released.
It is due at {due_date}.
Sincerely,
OHMS
P.S. This is an automatically generated message ;-)
""".format(due_date=due_date.strftime("%A, %b %d at %I:%M %p")))
return r'''Successfully assigned %d students. You should have received an
e-mail confirmation.''' % len(users)