def prizes(req):
if not req.user.is_authenticated:
raise Http404()
if req.POST.get('action') == 'purchase':
try:
prize = Prize.objects.get(id=req.POST.get('prize'))
if prize.stock <= 0:
raise ValueError("Not enough stock")
if prize.cost > req.user.bonuses:
raise ValueError("Too expensive")
purchase = Purchase()
purchase.user = req.user
purchase.prize = prize
purchase.code = ''.join(
random.choice("ABCDEFGHKMNPQRSTUVWXYZ23456789")
for _ in range(8))
purchase.status = Purchase.PAYED
purchase.save()
transaction = Transaction()
transaction.sender = req.user
transaction.amount = prize.cost
transaction.save()
req.user.bonuses -= prize.cost
req.user.save()
prize.stock -= 1
prize.save()
return redirect('/')
except:
raise Http404()
return render(req,
'prizes.html',
context=dict(prizes=Prize.objects.filter(
stock__gt=0).order_by('cost').all()))
def autoreward_lesson(lesson):
if not lesson.contest_id:
return
upsolving = is_upsolving(lesson.contest_id)
rules = [Rule(upsolving, rule) for rule in lesson.autorewards.split("\n")]
runs = run_contests_cmd(lesson.contest_id, "dump-filtered-runs",
"status==OK", "0", "-1").split('\n')
for s in runs:
if not s:
continue
info = s.split(';')
user_id, prob = int(info[10]), info[18]
if not Autoreward.objects.filter(
user__id=user_id, prob=prob, lesson=lesson).exists():
score = 0
for rule in rules:
if rule.appliable(prob):
score += rule.score
if not rule.add:
break
r = Autoreward()
r.user = EjudgeAuthBackend().get_user(user_id)
r.prob = prob
r.lesson = lesson
r.save()
if score > 0:
r.user.bonuses += score
r.user.save()
lesson.bank.bonuses -= score
tr = Transaction()
tr.sender = lesson.bank
tr.receiver = r.user
tr.amount = score
tr.save()
lesson.bank.save()
def give_bonuses(modeladmin, request, queryset):
bonuses = int(request.POST['bonuses'])
for user in queryset:
user.bonuses += bonuses
user.save()
request.user.bonuses -= bonuses
tr = Transaction()
tr.sender = request.user
tr.receiver = user
tr.amount = bonuses
tr.save()
request.user.save()
def casino(req, group_id):
session = False
try:
group = Group.objects.get(id=group_id)
if CasinoSession.objects.filter(user=req.user, group=group).exists():
session = True
if not group.casino_contest:
raise ValueError
if not req.user.is_authenticated:
raise ValueError
if not User.objects.filter(id=req.user.id,
groups__id=group.id).exists():
raise ValueError
except:
raise Http404()
if req.POST.get('action') == 'start' and not session:
try:
bet = int(req.POST.get('bet'))
if bet < 0:
raise ValueError
if bet > req.user.bonuses:
raise ValueError
sess = CasinoSession()
sess.group = group
sess.user = req.user
sess.bet = bet
sess.save()
sess.start_contest()
transaction = Transaction()
transaction.sender = req.user
transaction.amount = bet
transaction.save()
req.user.bonuses -= bet
req.user.save()
return redirect('/casino/%d/play' % group.id)
except:
raise Http404()
return render(req,
'casino.html',
context=dict(group=group, session=session))