cards/views.py

   1 from django.shortcuts import render_to_response
   2 from django.http import HttpResponseRedirect, HttpResponse, HttpResponseBadRequest, HttpResponseNotAllowed, Http404, HttpResponseForbidden
   3 from django.contrib.auth import authenticate, login, logout
   4 from django.contrib.auth.models import User
   5 from django.contrib.auth.decorators import login_required
   6 from ochimeru.cards.models import Card, CardStatus
   7
   8 import random
   9
  10 WORKING_SET_SIZE = 50
  11
  12 def home(request):
  13     if not request.user.is_authenticated():
  14         return HttpResponseRedirect('/login')
  15
  16     levels = [x['level'] for x in CardStatus.objects.filter(user=request.user).values('level').distinct()]
  17     if 0 not in levels: levels.append(0)
  18
  19     levels = range(min(levels), max(levels)+1)
  20     levels.reverse()
  21
  22     return render_to_response('level.html', {
  23         'levels': levels})
  24
  25
  26 @login_required
  27 def level(request, level):
  28     set = [x.card for x in CardStatus.objects.filter(user=request.user, level=level, is_current=True)]
  29
  30     for c in Card.objects.order_by('?'):
  31
  32         if len(set) >= WORKING_SET_SIZE: break
  33
  34         status = CardStatus.objects.filter(user=request.user, card=c)
  35
  36         if status and status[0].level == level:
  37             status[0].is_current = True
  38             status[0].save()
  39             set.append(c)
  40
  41         elif not status and int(level) == 0:
  42             CardStatus.objects.create(user=request.user, card=c, is_current=True, level=0)
  43             set.append(c)
  44
  45     if set:
  46         card = random.choice(set)
  47         return HttpResponseRedirect('/level/%s/%d' % (level, card.id))
  48     else:
  49         return HttpResponseRedirect('/')
  50
  51
  52 @login_required
  53 def card(request, level, card_id):
  54     card = Card.objects.get(pk=card_id)
  55
  56     return render_to_response('card.html', {
  57         'level': level,
  58         'card': card
  59         })
  60
  61
  62 @login_required
  63 def answer(request, level, card_id):
  64     card = Card.objects.get(pk=card_id)
  65
  66     return render_to_response('answer.html', {
  67         'level': level,
  68         'card': card
  69         })
  70
  71 def check(request, level, card_id):
  72     card = Card.objects.get(pk=card_id)
  73     status = CardStatus.objects.get(card=card, user=request.user)
  74
  75     if 'correct' in request.GET:
  76         status.level += 1
  77
  78     else:
  79         status.level = 0
  80
  81     status.save()
  82
  83     return HttpResponseRedirect('/level/%s/' % level)
  84
  85
  86 def login_user(request):
  87     try:
  88         username = request.POST['user']
  89         password = request.POST['pwd']
  90     except:
  91         return render_to_response('login.html')
  92
  93     user = authenticate(username=username, password=password)
  94
  95     if not user:
  96         return render_to_response('login.html', {
  97             'error_message': _('Unknown user or wrong password'),
  98             })
  99
 100     login(request, user)
 101
 102     return HttpResponseRedirect('/')
 103