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annotate gpp/downloads/views.py @ 190:0e4961833cdf

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Added some select_related's to downloads.
author Brian Neal <bgneal@gmail.com>
date Thu, 01 Apr 2010 01:57:01 +0000
parents 62eb9cbbcffc
children b4305e18d3af
rev   line source
gremmie@1 1 """
gremmie@1 2 Views for the downloads application.
gremmie@1 3 """
gremmie@1 4 import random
gremmie@1 5
gremmie@1 6 from django.shortcuts import render_to_response
gremmie@1 7 from django.template import RequestContext
gremmie@1 8 from django.contrib.auth.decorators import login_required
gremmie@1 9 from django.http import Http404
gremmie@1 10 from django.http import HttpResponse
gremmie@1 11 from django.http import HttpResponseRedirect
gremmie@1 12 from django.http import HttpResponseForbidden
gremmie@1 13 from django.http import HttpResponseBadRequest
bgneal@92 14 from django.core.paginator import InvalidPage
gremmie@1 15 from django.core.urlresolvers import reverse
gremmie@1 16 from django.db.models import Q
gremmie@1 17 from django.views.decorators.http import require_POST
gremmie@1 18
gremmie@1 19 from core.paginator import DiggPaginator
gremmie@1 20 from core.functions import email_admins
gremmie@1 21 from downloads.models import Category
gremmie@1 22 from downloads.models import Download
gremmie@1 23 from downloads.models import VoteRecord
gremmie@1 24 from downloads.forms import AddDownloadForm
gremmie@1 25 from downloads.forms import SearchForm
gremmie@1 26
gremmie@1 27 #######################################################################
gremmie@1 28
gremmie@1 29 DLS_PER_PAGE = 10
gremmie@1 30
gremmie@1 31 def create_paginator(dls):
gremmie@1 32 return DiggPaginator(dls, DLS_PER_PAGE, body=5, tail=3, margin=3, padding=2)
gremmie@1 33
gremmie@1 34 #######################################################################
gremmie@1 35
gremmie@1 36 @login_required
gremmie@1 37 def index(request):
gremmie@1 38 categories = Category.objects.all()
gremmie@1 39 total_dls = Download.public_objects.all().count()
gremmie@1 40 return render_to_response('downloads/index.html', {
gremmie@1 41 'categories': categories,
gremmie@1 42 'total_dls': total_dls,
gremmie@1 43 },
gremmie@1 44 context_instance = RequestContext(request))
gremmie@1 45
gremmie@1 46 #######################################################################
gremmie@1 47 # Maps URL component to database field name for the Download table:
gremmie@1 48
gremmie@1 49 DOWNLOAD_FIELD_MAP = {
gremmie@1 50 'title': 'title',
gremmie@1 51 'date': '-date_added',
gremmie@1 52 'rating': '-average_score',
gremmie@1 53 'hits': '-hits'
gremmie@1 54 }
gremmie@1 55
gremmie@1 56 @login_required
gremmie@1 57 def category(request, category, sort='title', page='1'):
gremmie@1 58 try:
gremmie@1 59 cat = Category.objects.get(pk=category)
gremmie@1 60 except Category.DoesNotExist:
gremmie@1 61 raise Http404
gremmie@1 62
gremmie@1 63 if sort not in DOWNLOAD_FIELD_MAP:
gremmie@1 64 sort = 'title'
gremmie@1 65 order_by = DOWNLOAD_FIELD_MAP[sort]
gremmie@1 66
bgneal@190 67 downloads = Download.public_objects.filter(category=cat.pk).order_by(
bgneal@190 68 order_by)
gremmie@1 69 paginator = create_paginator(downloads)
gremmie@1 70 try:
gremmie@1 71 the_page = paginator.page(int(page))
gremmie@1 72 except InvalidPage:
gremmie@1 73 raise Http404
gremmie@1 74
gremmie@1 75 return render_to_response('downloads/download_list.html', {
gremmie@1 76 's' : sort,
gremmie@1 77 'category' : cat,
gremmie@1 78 'page' : the_page,
gremmie@1 79 },
gremmie@1 80 context_instance = RequestContext(request))
gremmie@1 81
gremmie@1 82 #######################################################################
gremmie@1 83
gremmie@1 84 @login_required
gremmie@1 85 def new(request):
gremmie@1 86 downloads = Download.public_objects.order_by('-date_added')[:DLS_PER_PAGE]
gremmie@1 87 return render_to_response('downloads/download_summary.html', {
gremmie@1 88 'downloads' : downloads,
gremmie@1 89 'title' : 'Newest Downloads',
gremmie@1 90 },
gremmie@1 91 context_instance = RequestContext(request))
gremmie@1 92
gremmie@1 93 #######################################################################
gremmie@1 94
gremmie@1 95 @login_required
gremmie@1 96 def popular(request):
gremmie@1 97 downloads = Download.public_objects.order_by('-hits')[:DLS_PER_PAGE]
gremmie@1 98 return render_to_response('downloads/download_summary.html', {
gremmie@1 99 'downloads' : downloads,
gremmie@1 100 'title' : 'Popular Downloads',
gremmie@1 101 },
gremmie@1 102 context_instance = RequestContext(request))
gremmie@1 103
gremmie@1 104 #######################################################################
gremmie@1 105
gremmie@1 106 @login_required
gremmie@1 107 def rating(request):
gremmie@1 108 downloads = Download.public_objects.order_by('-average_score')[:DLS_PER_PAGE]
gremmie@1 109 return render_to_response('downloads/download_summary.html', {
gremmie@1 110 'downloads' : downloads,
gremmie@1 111 'title' : 'Highest Rated Downloads',
gremmie@1 112 },
gremmie@1 113 context_instance = RequestContext(request))
gremmie@1 114
gremmie@1 115 #######################################################################
gremmie@1 116
gremmie@1 117 @login_required
gremmie@1 118 def download(request, id):
gremmie@1 119 download = Download.public_objects.get(pk=id)
gremmie@1 120 if download is None:
gremmie@1 121 raise Http404
gremmie@1 122 return _redirect_download(download)
gremmie@1 123
gremmie@1 124 #######################################################################
gremmie@1 125
gremmie@1 126 def _redirect_download(download):
gremmie@1 127 download.hits += 1
gremmie@1 128 download.save()
gremmie@1 129 return HttpResponseRedirect(download.file.url)
gremmie@1 130
gremmie@1 131 #######################################################################
gremmie@1 132
gremmie@1 133 @login_required
bgneal@23 134 def details(request, id):
gremmie@1 135 download = Download.public_objects.get(pk=id)
gremmie@1 136 if download is None:
gremmie@1 137 raise Http404
bgneal@23 138 return render_to_response('downloads/download_detail.html', {
gremmie@1 139 'download' : download,
gremmie@1 140 },
gremmie@1 141 context_instance = RequestContext(request))
gremmie@1 142
gremmie@1 143 #######################################################################
gremmie@1 144
gremmie@1 145 @login_required
gremmie@1 146 def random_download(request):
gremmie@1 147 ids = Download.public_objects.values_list('id', flat=True)
gremmie@1 148 if not ids:
gremmie@1 149 raise Http404
gremmie@1 150 id = random.choice(ids)
gremmie@1 151 download = Download.objects.get(pk=id)
gremmie@1 152 return _redirect_download(download)
gremmie@1 153
gremmie@1 154 #######################################################################
gremmie@1 155
gremmie@1 156 @login_required
gremmie@1 157 def add(request):
gremmie@1 158 if request.method == 'POST':
gremmie@1 159 form = AddDownloadForm(request.POST, request.FILES)
gremmie@1 160 if form.is_valid():
gremmie@1 161 dl = form.save(commit=False)
gremmie@1 162 dl.user = request.user
gremmie@1 163 dl.ip_address = request.META.get('REMOTE_ADDR', None)
gremmie@1 164 dl.is_public = False
gremmie@1 165 dl.save()
gremmie@1 166 email_admins('New download for approval', """Hello,
gremmie@1 167
gremmie@1 168 A user has uploaded a new download for your approval.
gremmie@1 169 """)
gremmie@1 170 return HttpResponseRedirect(reverse('downloads-add_thanks'))
gremmie@1 171 else:
gremmie@1 172 form = AddDownloadForm()
gremmie@1 173
gremmie@1 174 return render_to_response('downloads/add.html', {
gremmie@1 175 'add_form': form,
gremmie@1 176 },
gremmie@1 177 context_instance=RequestContext(request))
gremmie@1 178
gremmie@1 179 #######################################################################
gremmie@1 180
gremmie@1 181 @login_required
gremmie@1 182 def thanks(request):
gremmie@1 183 return render_to_response('downloads/thanks.html', {
gremmie@1 184 },
gremmie@1 185 context_instance=RequestContext(request))
gremmie@1 186
gremmie@1 187 #######################################################################
gremmie@1 188
gremmie@1 189 @login_required
gremmie@1 190 def search(request, page=1):
gremmie@1 191 if request.method == 'POST':
gremmie@1 192 form = SearchForm(request.POST)
gremmie@1 193 if form.is_valid():
gremmie@1 194 query_text = form.query()
gremmie@1 195 page = 1
gremmie@1 196 else:
gremmie@1 197 return HttpResponseRedirect(reverse('downloads-index'))
gremmie@1 198 else:
gremmie@1 199 if 'query' in request.GET:
gremmie@1 200 query_text = request.GET['query']
gremmie@1 201 else:
gremmie@1 202 return HttpResponseRedirect(reverse('downloads-index'))
gremmie@1 203
gremmie@1 204 dls = Download.objects.filter(
gremmie@1 205 Q(title__icontains = query_text) |
bgneal@190 206 Q(description__icontains = query_text)).order_by(
bgneal@190 207 'title').select_related()
gremmie@1 208 paginator = create_paginator(dls)
gremmie@1 209 try:
gremmie@1 210 the_page = paginator.page(int(page))
gremmie@1 211 except EmptyPage:
gremmie@1 212 dls = Download.objects.none()
gremmie@1 213 except InvalidPage:
gremmie@1 214 raise Http404
gremmie@1 215
gremmie@1 216 return render_to_response('downloads/search_results.html', {
gremmie@1 217 'query': query_text,
gremmie@1 218 'page': the_page,
gremmie@1 219 },
gremmie@1 220 context_instance = RequestContext(request))
gremmie@1 221
gremmie@1 222 #######################################################################
gremmie@1 223
gremmie@1 224 @require_POST
gremmie@1 225 def rate_download(request):
gremmie@1 226 """This function is called by AJAX to rate a download."""
gremmie@1 227 if request.user.is_authenticated():
gremmie@1 228 id = request.POST.get('id', None)
gremmie@1 229 rating = request.POST.get('rating', None)
gremmie@1 230 if id is None or rating is None:
gremmie@1 231 return HttpResponseBadRequest('Missing id or rating.')
gremmie@1 232
gremmie@1 233 try:
gremmie@1 234 rating = int(rating)
gremmie@1 235 except ValueError:
gremmie@1 236 return HttpResponseBadRequest('Invalid rating.')
gremmie@1 237
gremmie@1 238 # rating will be from 0-4
gremmie@1 239 rating = min(5, max(1, rating))
gremmie@1 240
gremmie@1 241 try:
gremmie@1 242 download = Download.public_objects.get(pk=id)
gremmie@1 243 except Download.DoesNotExist:
gremmie@1 244 return HttpResponseBadRequest('Invalid download id.')
gremmie@1 245
gremmie@1 246 # prevent multiple votes from the same user
gremmie@1 247 vote_record, created = VoteRecord.objects.get_or_create(download=download, user=request.user)
gremmie@1 248 if created:
gremmie@1 249 new_score = download.vote(rating)
gremmie@1 250 download.save()
gremmie@1 251 return HttpResponse(str(new_score))
gremmie@1 252 else:
gremmie@1 253 return HttpResponse('-1')
gremmie@1 254
gremmie@1 255 return HttpResponseForbidden('You must be logged in to rate a download.')