def post(self, request, *args, **kwargs):
post = self.get_object()
if post.price > request.user.coin:
return render(request,
'error.html',
context={
'errors':
'你没有那么多金币啦！',
'return_url':
reverse('archive:detail',
kwargs=dict(pk=post.id))
})
request.user.coin -= post.price
request.user.save()
post.author.coin += post.price
post.author.save()
post.buyers.add(request.user)
log_coin(-post.price, request.user.coin, None, request.user,
'购买《%s》' % (post.title, ))
log_coin(post.price, post.author.coin, None, post.author,
'出售《%s》' % (post.title, ))
return redirect('archive:detail', pk=post.id)
def form_valid(self, form):
gift = get_object_or_404(models.Gift, show=True, pk=self.kwargs['gift_id'])
return_url = reverse('archive:gift', kwargs=dict(pk=gift.id))
if gift.amount <= 0:
return render(self.request, 'error.html', context={
'errors': '没货了，请提醒管理员上货！',
'return_url': return_url
})
if gift.price > self.request.user.coin:
return render(self.request, 'error.html', context={
'errors': '你没有那么多金币，快去提交贡献赚钱吧！',
'return_url': return_url
})
self.object = form.save(commit=False)
self.object.buyer = self.request.user
self.object.gift = gift
self.object.cost = gift.price
self.object.save()
self.request.user.coin -= gift.price
self.request.user.save()
gift.amount = F('amount') - 1
gift.save()
log_coin(-gift.price, self.request.user.coin, None, self.request.user, "购买“%s”" % (gift.name, ))
return redirect(self.get_success_url())