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annotate gpp/shoutbox/views.py @ 101:4bbb6a9aa317

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Forums: use select_related() with get_object_or_404() to reduce queries.
author Brian Neal <bgneal@gmail.com>
date Wed, 16 Sep 2009 00:39:27 +0000
parents 62eb9cbbcffc
children a20b2c492d55
rev   line source
gremmie@1 1 """
gremmie@1 2 Views for the Shoutbox application.
gremmie@1 3 """
gremmie@1 4
gremmie@1 5 import re
gremmie@1 6 from django.shortcuts import render_to_response
gremmie@1 7 from django.template import RequestContext
bgneal@92 8 from django.core.paginator import InvalidPage
gremmie@1 9 from django.http import HttpResponse
gremmie@1 10 from django.http import HttpResponseBadRequest
gremmie@1 11 from django.http import HttpResponseForbidden
gremmie@1 12 from django.http import HttpResponseRedirect
gremmie@1 13 from django.contrib.auth.decorators import login_required
bgneal@12 14 from django.views.decorators.http import require_POST
gremmie@1 15
gremmie@1 16 from core.paginator import DiggPaginator
bgneal@13 17 from core.functions import email_admins
gremmie@1 18 from shoutbox.forms import ShoutBoxForm
gremmie@1 19 from shoutbox.models import Shout
bgneal@13 20 from shoutbox.models import ShoutFlag
gremmie@1 21
gremmie@1 22 SHOUTS_PER_PAGE = 10
gremmie@1 23
gremmie@1 24 @login_required
bgneal@12 25 @require_POST
gremmie@1 26 def shout(request):
bgneal@12 27 msg = request.POST.get('msg', '').strip()
bgneal@12 28 if msg == '':
bgneal@12 29 return HttpResponse('')
bgneal@12 30
bgneal@12 31 shout = Shout(user=request.user, shout=msg)
bgneal@12 32 shout.save()
bgneal@12 33 return render_to_response('shoutbox/shout.html', {
bgneal@12 34 'shout': shout,
bgneal@12 35 },
bgneal@12 36 context_instance = RequestContext(request))
gremmie@1 37
gremmie@1 38
bgneal@13 39 def view_shout(request, id):
bgneal@13 40 """This view is for viewing an individual shout."""
bgneal@13 41 try:
bgneal@13 42 shout = Shout.objects.get(pk=id)
bgneal@13 43 except Shout.DoesNotExist:
bgneal@13 44 return render_to_response('shoutbox/missing_shout.html', {},
bgneal@13 45 context_instance = RequestContext(request))
bgneal@13 46
bgneal@13 47 return render_to_response('shoutbox/view_shout.html', {
bgneal@13 48 'shout': shout,
bgneal@13 49 },
bgneal@13 50 context_instance = RequestContext(request))
bgneal@13 51
bgneal@13 52
bgneal@13 53 def view_history(request, page=1):
gremmie@1 54 """This view allows one to view the shoutbox history."""
gremmie@1 55 paginator = DiggPaginator(Shout.objects.all(), SHOUTS_PER_PAGE, body=5, tail=3, margin=3, padding=2)
gremmie@1 56 try:
gremmie@1 57 the_page = paginator.page(int(page))
gremmie@1 58 except InvalidPage:
gremmie@1 59 raise Http404
gremmie@1 60
gremmie@1 61 return render_to_response('shoutbox/view.html', {
gremmie@1 62 'page': the_page,
gremmie@1 63 },
gremmie@1 64 context_instance = RequestContext(request))
gremmie@1 65
gremmie@1 66
gremmie@1 67 shout_id_re = re.compile(r'shout-(\d+)')
gremmie@1 68
gremmie@1 69 def text(request):
gremmie@1 70 """This view function retrieves the text of a shout; it is used in the in-place
gremmie@1 71 editing of shouts on the shoutbox history view."""
gremmie@1 72 if request.user.is_authenticated():
gremmie@1 73 m = shout_id_re.match(request.GET.get('id', ''))
gremmie@1 74 if m is None:
gremmie@1 75 return HttpResponseBadRequest()
gremmie@1 76 try:
gremmie@1 77 shout = Shout.objects.get(pk=m.group(1))
gremmie@1 78 except Shout.DoesNotExist:
gremmie@1 79 return HttpResponseBadRequest()
gremmie@1 80 return HttpResponse(shout.shout)
gremmie@1 81
gremmie@1 82 return HttpResponseForbidden()
gremmie@1 83
gremmie@1 84
gremmie@1 85 def edit(request):
gremmie@1 86 """This view accepts a shoutbox edit from the shoutbox history view."""
gremmie@1 87 if request.user.is_authenticated():
gremmie@1 88 m = shout_id_re.match(request.POST.get('id', ''))
gremmie@1 89 if m is None:
gremmie@1 90 return HttpResponseBadRequest()
gremmie@1 91 try:
gremmie@1 92 shout = Shout.objects.get(pk=m.group(1))
gremmie@1 93 except Shout.DoesNotExist:
gremmie@1 94 return HttpResponseBadRequest()
gremmie@1 95 if request.user != shout.user:
gremmie@1 96 return HttpResponseForbidden()
gremmie@1 97 new_shout = request.POST.get('value', '').strip()
gremmie@1 98 if new_shout == '':
gremmie@1 99 return HttpResponseBadRequest()
gremmie@1 100 shout.shout = new_shout
gremmie@1 101 shout.save()
gremmie@1 102 return render_to_response('shoutbox/render_shout.html', {
gremmie@1 103 'shout': shout,
gremmie@1 104 },
gremmie@1 105 context_instance = RequestContext(request))
gremmie@1 106
gremmie@1 107 return HttpResponseForbidden()
gremmie@1 108
gremmie@1 109
gremmie@1 110 def delete(request):
gremmie@1 111 """This view deletes a shout. It is called by AJAX from the shoutbox history view."""
gremmie@1 112 if request.user.is_authenticated():
gremmie@1 113 id = request.POST.get('id', None)
gremmie@1 114 if id is None or not id.isdigit():
gremmie@1 115 return HttpResponseBadRequest()
gremmie@1 116 try:
gremmie@1 117 shout = Shout.objects.get(pk=id)
gremmie@1 118 except Shout.DoesNotExist:
gremmie@1 119 return HttpResponseBadRequest()
gremmie@1 120 if request.user != shout.user:
gremmie@1 121 return HttpResponseForbidden()
gremmie@1 122 shout.delete()
gremmie@1 123 return HttpResponse(id)
gremmie@1 124
gremmie@1 125 return HttpResponseForbidden()
bgneal@12 126
bgneal@13 127
bgneal@13 128 @require_POST
bgneal@13 129 def flag(request):
bgneal@13 130 """
bgneal@13 131 This function handles the flagging of shouts by users. This function should
bgneal@13 132 be the target of an AJAX post.
bgneal@13 133 """
bgneal@13 134 if not request.user.is_authenticated():
bgneal@13 135 return HttpResponse('Please login or register to flag a shout.')
bgneal@13 136
bgneal@13 137 id = request.POST.get('id', None)
bgneal@13 138 if id is None:
bgneal@13 139 return HttpResponseBadRequest('No id')
bgneal@13 140
bgneal@13 141 try:
bgneal@13 142 shout = Shout.objects.get(pk=id)
bgneal@13 143 except Shout.DoesNotExist:
bgneal@13 144 return HttpResponseBadRequest('No shout with id %s' % id)
bgneal@13 145
bgneal@13 146 flag = ShoutFlag(user=request.user, shout=shout)
bgneal@13 147 flag.save()
bgneal@13 148 email_admins('A Shout Has Been Flagged', """Hello,
bgneal@13 149
bgneal@13 150 A user has flagged a shout for review.
bgneal@13 151 """)
bgneal@13 152 return HttpResponse('The shout was flagged. A moderator will review the shout shortly. ' \
bgneal@13 153 'Thanks for helping to improve the quality of this site.')
bgneal@13 154
bgneal@12 155 # vim: ts=4 sw=4