def class_info(request, class_name):
# Display textbox for user to enter a class
form = GetSubjectForm()
if request.method == 'POST':
form = GetSubjectForm(request.POST)
if form.is_valid():
class_name = form.cleaned_data['class_']
info = subject_info.get_online_info(class_name)
# The user searched with a keyword
if info == None:
# TODO: only do this for English words. Invalid classes should throw error
recs = keyword_similarity.keyword_similarity(class_name)
return render(request, 'recommender/recommendations-keywords.html', {'form':form, 'recs': recs})
# The user searched with a class number
term_stats = subject_info.get_term_stats(class_name)
# Create bar graph
data = create_graphs.create_bar_graph(term_stats, class_name, info)
data['form'] = form
# TODO
# return redirect(reverse('recommender:class_info'), args=(response,), urllib.urlencode(data))
return render(request, 'recommender/stats_by_class.html', data)
def generate_recommendations(major, cur_semester, student_classes):
new_classes = get_new_classes.get_classes_to_take(major, student_classes)
all_classes = student_classes + new_classes
if major == '18_applied' or major == '18_general':
major = '18'
else:
major = major.replace('_', ' ')
class_table = {k:v for k, v in zip(all_classes, xrange(len(all_classes)))}
shared_classes_table = create_shared_classes_table(major, all_classes, class_table) # consider caching
# Calculate time (semester) relevance
cur_term = "term%s" % cur_semester
term_data, class_titles = get_term_relevance_data(cur_term, new_classes)
# Calculate "importance" of each class that hasn't been taken by the student
importance_ratings = {}
for new_class in new_classes:
rating = calculate_rating(new_class, student_classes, class_table, shared_classes_table)
# try:
# rating *= term_data[new_class] # time relevance
# except:
# pass
importance_ratings[new_class] = rating
# Create list of classes in order of popularity
sorted_classes = sorted(importance_ratings, key=importance_ratings.get, reverse=True)
recs = []
for c in sorted_classes[:20]:
try:
title = class_titles[c]
except:
try:
title = subject_info.get_online_info(c)['title']
except:
title = ""
recs.append((c, title))
return recs
