def _submit_all_comparisons_for_assignment(self, assignment, user_id):
submit_count = 0
for comparison_example in assignment.comparison_examples:
comparisons = Comparison.create_new_comparison_set(assignment.id, user_id, False)
self.assertEqual(comparisons[0].answer1_id, comparison_example.answer1_id)
self.assertEqual(comparisons[0].answer2_id, comparison_example.answer2_id)
for comparison in comparisons:
comparison.completed = True
comparison.winner_id = min([comparisons[0].answer1_id, comparisons[0].answer2_id])
db.session.add(comparison)
submit_count += 1
db.session.commit()
for i in range(assignment.number_of_comparisons):
comparisons = Comparison.create_new_comparison_set(assignment.id, user_id, False)
for comparison in comparisons:
comparison.completed = True
comparison.winner_id = min([comparisons[0].answer1_id, comparisons[0].answer2_id])
db.session.add(comparison)
submit_count += 1
db.session.commit()
Comparison.calculate_scores(assignment.id)
return submit_count
def _submit_all_possible_comparisons_for_user(self, user_id):
example_winner_ids = []
example_loser_ids = []
for comparison_example in self.data.comparisons_examples:
if comparison_example.assignment_id == self.assignment.id:
comparisons = Comparison.create_new_comparison_set(self.assignment.id, user_id, False)
self.assertEqual(comparisons[0].answer1_id, comparison_example.answer1_id)
self.assertEqual(comparisons[0].answer2_id, comparison_example.answer2_id)
min_id = min([comparisons[0].answer1_id, comparisons[0].answer2_id])
max_id = max([comparisons[0].answer1_id, comparisons[0].answer2_id])
example_winner_ids.append(min_id)
example_loser_ids.append(max_id)
for comparison in comparisons:
comparison.completed = True
comparison.winner_id = min_id
db.session.add(comparison)
db.session.commit()
# self.login(username)
# calculate number of comparisons to do before user has compared all the pairs it can
num_eligible_answers = 0 # need to minus one to exclude the logged in user's own answer
for answer in self.data.get_student_answers():
if answer.assignment_id == self.assignment.id and answer.user_id != user_id:
num_eligible_answers += 1
# n - 1 possible pairs before all answers have been compared
num_possible_comparisons = num_eligible_answers - 1
winner_ids = []
loser_ids = []
for i in range(num_possible_comparisons):
comparisons = Comparison.create_new_comparison_set(self.assignment.id, user_id, False)
answer1_id = comparisons[0].answer1_id
answer2_id = comparisons[0].answer2_id
min_id = min([answer1_id, answer2_id])
max_id = max([answer1_id, answer2_id])
winner_ids.append(min_id)
loser_ids.append(max_id)
for comparison in comparisons:
comparison.completed = True
comparison.winner_id = min_id
db.session.add(comparison)
db.session.commit()
Comparison.calculate_scores(self.assignment.id)
return {
'comparisons': {
'winners': winner_ids, 'losers': loser_ids
},
'comparison_examples': {
'winners': example_winner_ids, 'losers': example_loser_ids
}
}
def add_comparisons(self):
for assignment in self.assignments:
for student in self.students:
for i in range(assignment.total_comparisons_required):
comparisons = Comparison.create_new_comparison_set(assignment.id, student.id, False)
for comparison in comparisons:
comparison.completed = True
comparison.winner_id = min([comparisons[0].answer1_id, comparisons[0].answer2_id])
db.session.add(comparison)
db.session.commit()
return self
def get(self, course_uuid, assignment_uuid):
"""
Get (or create if needed) a comparison set for assignment.
"""
course = Course.get_active_by_uuid_or_404(course_uuid)
assignment = Assignment.get_active_by_uuid_or_404(assignment_uuid)
require(READ, assignment)
require(CREATE, Comparison)
restrict_user = not allow(MANAGE, assignment)
if not assignment.compare_grace:
return {'error': comparison_deadline_message}, 403
elif not restrict_user and not assignment.educators_can_compare:
return {'error': educators_can_not_compare_message}, 403
# check if user has comparisons they have not completed yet
comparisons = Comparison.query \
.filter_by(
assignment_id=assignment.id,
user_id=current_user.id,
completed=False
) \
.all()
new_pair = False
if len(comparisons) > 0:
on_comparison_get.send(
self,
event_name=on_comparison_get.name,
user=current_user,
course_id=course.id,
data=marshal(comparisons, dataformat.get_comparison(restrict_user)))
else:
# if there aren't incomplete comparisons, assign a new one
try:
comparisons = Comparison.create_new_comparison_set(assignment.id, current_user.id,
skip_comparison_examples=allow(MANAGE, assignment))
new_pair = True
on_comparison_create.send(
self,
event_name=on_comparison_create.name,
user=current_user,
course_id=course.id,
data=marshal(comparisons, dataformat.get_comparison(restrict_user)))
except InsufficientObjectsForPairException:
return {"error": "Not enough answers are available for a comparison."}, 400
except UserComparedAllObjectsException:
return {"error": "You have compared all the currently available answers."}, 400
except UnknownPairGeneratorException:
return {"error": "Generating scored pairs failed, this really shouldn't happen."}, 500
comparison_count = assignment.completed_comparison_count_for_user(current_user.id)
return {
'objects': marshal(comparisons, dataformat.get_comparison(restrict_user)),
'new_pair': new_pair,
'current': comparison_count+1
}
