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annotate contests/views.py @ 661:15dbe0ccda95

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Prevent exceptions when viewing downloads in the admin when the file doesn't exist on the filesystem. This is usually seen in development but can also happen in production if the file is missing.
author Brian Neal <bgneal@gmail.com>
date Tue, 14 May 2013 21:02:47 -0500
parents ee87ea74d46b
children 89b240fe9297
rev   line source
bgneal@540 1 """
bgneal@540 2 Views for the contests application.
bgneal@540 3
bgneal@540 4 """
bgneal@540 5 from django.http import (HttpResponse, HttpResponseForbidden,
bgneal@540 6 HttpResponseBadRequest)
bgneal@540 7 from django.shortcuts import get_object_or_404
bgneal@540 8 from django.utils import simplejson
bgneal@540 9 from django.views.decorators.http import require_POST
bgneal@540 10
bgneal@540 11 from contests.models import Contest
bgneal@540 12
bgneal@540 13
bgneal@540 14 @require_POST
bgneal@540 15 def enter(request):
bgneal@540 16 """
bgneal@540 17 This view is an AJAX view that is used to enter or withdraw a user from a
bgneal@540 18 given contest. This function toggles the user's entered state in the
bgneal@540 19 contest.
bgneal@540 20
bgneal@540 21 """
bgneal@540 22 if not request.user.is_authenticated():
bgneal@540 23 return HttpResponseForbidden("Please login first")
bgneal@540 24
bgneal@540 25 contest_id = request.POST.get('contest_id')
bgneal@540 26 if not contest_id:
bgneal@540 27 return HttpResponseBadRequest("Missing contest_id")
bgneal@540 28
bgneal@540 29 contest = get_object_or_404(Contest, pk=contest_id)
bgneal@540 30 if not contest.can_enter():
bgneal@540 31 return HttpResponseForbidden("Contest is over")
bgneal@540 32
bgneal@540 33 # Toggle the user's state in the contest
bgneal@540 34
bgneal@540 35 result = {}
bgneal@540 36 if request.user in contest.contestants.all():
bgneal@540 37 contest.contestants.remove(request.user)
bgneal@540 38 result['entered'] = False
bgneal@540 39 result['msg'] = 'You have been withdrawn from this contest.'
bgneal@540 40 else:
bgneal@540 41 contest.contestants.add(request.user)
bgneal@540 42 result['entered'] = True
bgneal@540 43 result['msg'] = 'You have been entered into this contest!'
bgneal@540 44
bgneal@540 45 json = simplejson.dumps(result)
bgneal@540 46 return HttpResponse(json, content_type='application/json')