def grades():
user = validate_user()
categories = session.query(Category).all()
homeworks = get_homeworks_before()
update_hw_grades(user, homeworks)
session.commit()
gradebook, max_scores = get_gradebook()
grades = [entry for entry in gradebook if entry[0] == user]
if grades:
grades = grades[0][1]
else:
grades = {hw.id: get_grade(user.stuid, hw.id) for hw in homeworks}
return render_template("grades.html",
homeworks=homeworks,
grades=grades,
max_scores=max_scores,
options=options,
user=user,
categories=categories)
def grades():
user = validate_user()
categories = session.query(Category).all()
homeworks = get_homeworks_before()
update_hw_grades(user, homeworks)
session.commit()
gradebook, max_scores = get_gradebook()
grades = [entry for entry in gradebook if entry[0] == user]
if grades:
grades = grades[0][1]
else:
grades = {hw.id: get_grade(user.stuid, hw.id) for hw in homeworks}
return render_template("grades.html", homeworks=homeworks,
grades=grades, max_scores=max_scores,
options=options, user=user,
categories=categories)
def get_gradebook():
"""
helper function that gets the gradebook
"""
user = validate_user()
if user.type == "admin":
homeworks = get_homework()
else:
homeworks = get_homeworks_before()
# get all the grades, put them into a gradebook
gradebook, max_scores = {}, {}
for user in get_users():
if user.type == "student":
gradebook[user] = {}
for homework in homeworks:
grades = session.query(Grade).filter_by(hw_id=homework.id).all()
scores = []
for g in grades:
if g.student not in gradebook:
continue
gradebook[g.student][homework.id] = g
try:
scores.append(float(g.score))
except:
pass
if homework.max_score is not None:
max_scores[homework.id] = homework.max_score
elif scores:
max_scores[homework.id] = max(scores)
else:
max_scores[homework.id] = None
gradebook = gradebook.items()
gradebook.sort(key=lambda entry: convert_to_last_name(entry[0].name))
categories = session.query(Category).all()
# calculate total scores by category, taking into account excused assignments
for student, grades in gradebook:
earned = {c: [] for c in categories}
possible = {c: [] for c in categories}
for hw in homeworks:
if max_scores[hw.id] is None or max_scores[hw.id] == 0:
continue
possible[hw.category].append(max_scores[hw.id])
if hw.id in grades:
if grades[
hw.
id].excused: # if student was excused from assignment
possible[hw.category].remove(
max_scores[hw.id]) # don't count it against
else:
try:
earned[hw.category].append(float(grades[hw.id].score))
except:
earned[hw.category].append(0)
else:
earned[hw.category].append(0)
# add grades to gradebook
grades["overall"] = 0.
for category, poss in possible.iteritems():
if len(poss) == 0:
grades[category.name] = "0 / 0"
continue
# sort scores by benefit to grade if dropped
e, p = sum(earned[category]), sum(poss)
if len(poss) > category.drops + 1:
grades_sorted = sorted(zip(earned[category], poss),
key=lambda x: -(e - x[0]) / (p - x[1]))
grades_sorted = grades_sorted[category.drops:]
out = zip(*grades_sorted)
else:
out = earned[category], poss
grades[category.name] = "%0.1f / %0.1f" % (sum(out[0]), sum(
out[1]))
if sum(out[1]) > 0:
grades["overall"] += category.weight * sum(out[0]) / sum(
out[1])
return gradebook, max_scores
def get_gradebook():
"""
helper function that gets the gradebook
"""
user = validate_user()
if user.type == "admin":
homeworks = get_homework()
else:
homeworks = get_homeworks_before()
# get all the grades, put them into a gradebook
gradebook, max_scores = {}, {}
for user in get_users():
if user.type == "student":
gradebook[user] = {}
for homework in homeworks:
grades = session.query(Grade).filter_by(hw_id = homework.id).all()
scores = []
for g in grades:
if g.student not in gradebook:
continue
gradebook[g.student][homework.id] = g
try:
scores.append(float(g.score))
except:
pass
if homework.max_score is not None:
max_scores[homework.id] = homework.max_score
elif scores:
max_scores[homework.id] = max(scores)
else:
max_scores[homework.id] = None
gradebook = gradebook.items()
gradebook.sort(key=lambda entry: convert_to_last_name(entry[0].name))
categories = session.query(Category).all()
# calculate total scores by category, taking into account excused assignments
for student, grades in gradebook:
earned = {c: [] for c in categories}
possible = {c: [] for c in categories}
for hw in homeworks:
if max_scores[hw.id] is None or max_scores[hw.id] == 0:
continue
possible[hw.category].append(max_scores[hw.id])
if hw.id in grades:
if grades[hw.id].excused: # if student was excused from assignment
possible[hw.category].remove(max_scores[hw.id]) # don't count it against
else:
try:
earned[hw.category].append(float(grades[hw.id].score))
except:
earned[hw.category].append(0)
else:
earned[hw.category].append(0)
# add grades to gradebook
grades["overall"] = 0.
for category, poss in possible.iteritems():
if len(poss) == 0:
grades[category.name] = "0 / 0"
continue
# sort scores by benefit to grade if dropped
e, p = sum(earned[category]), sum(poss)
if len(poss) > category.drops + 1:
grades_sorted = sorted(zip(earned[category], poss), key=lambda x: -(e-x[0])/(p-x[1]))
grades_sorted = grades_sorted[category.drops:]
out = zip(*grades_sorted)
else:
out = earned[category], poss
grades[category.name] = "%0.1f / %0.1f" % (sum(out[0]), sum(out[1]))
if sum(out[1]) > 0:
grades["overall"] += category.weight * sum(out[0]) / sum(out[1])
return gradebook, max_scores
