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annotate gpp/contests/views.py @ 540:51fa1e0ca218

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For #243, create a contests application.
author Brian Neal <bgneal@gmail.com>
date Mon, 09 Jan 2012 01:13:08 +0000
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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bgneal@540 39 result['msg'] = 'You have been withdrawn from this contest.'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')