def vote(request, event):
''' Receives a grade as a POST parameter and event as positional in url.
Saves the grade in db. '''
grade_value = request.POST.get('grade')
if not grade_value:
return HttpResponseServerError('Param grade not found')
user = users.get_current_user()
grade_value = int(grade_value) + 1
GradeFacade.save_grade(user, grade_value, event)
return HttpResponse('Voted {0} on event {1}'.format(grade_value, event))
def show_grade(request, event):
''' Renders the event grade as a json object {'value': int(grade)} '''
user = users.get_current_user()
grade_value = GradeFacade.get_grade_value(event, user.nickname())
response = json.dumps({'value': grade_value})
return HttpResponse(response, mimetype='application/json')
def recommend(request, template='recommendations.html'):
''' Renders a html with all recommendations and grades for the user '''
my_user = users.get_current_user()
grades = GradeFacade.get_all_grades()
grades_dct = utils.format_grades(grades)
my_voted_events = {grade.event for grade
in GradeFacade.get_grades_from_user(my_user)}
all_voted_events = {grade.event for grade in grades
if grade.user != my_user}
filtered_events = filtering.slope_one(my_user, my_voted_events,
all_voted_events, grades_dct)
recommendations = {}
for event_key, grade in filtered_events.items():
event = event_key.get()
recommendations[event.title] = {'info': event, 'grade': grade}
template_context = {'recommendations': recommendations}
return render_to_response(template, template_context)