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annotate gpp/downloads/views.py @ 186:be3fff614b93

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Implement #66; use jQuery UI autocomplete widget to replace obsolete jquery-autocomplete plugin. I implemented a very simple caching system.
author Brian Neal <bgneal@gmail.com>
date Tue, 30 Mar 2010 01:30:32 +0000
parents 62eb9cbbcffc
children 0e4961833cdf
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
gremmie@1 67 downloads = Download.public_objects.filter(category=cat.pk).order_by(order_by)
gremmie@1 68 paginator = create_paginator(downloads)
gremmie@1 69 try:
gremmie@1 70 the_page = paginator.page(int(page))
gremmie@1 71 except InvalidPage:
gremmie@1 72 raise Http404
gremmie@1 73
gremmie@1 74 return render_to_response('downloads/download_list.html', {
gremmie@1 75 's' : sort,
gremmie@1 76 'category' : cat,
gremmie@1 77 'page' : the_page,
gremmie@1 78 },
gremmie@1 79 context_instance = RequestContext(request))
gremmie@1 80
gremmie@1 81 #######################################################################
gremmie@1 82
gremmie@1 83 @login_required
gremmie@1 84 def new(request):
gremmie@1 85 downloads = Download.public_objects.order_by('-date_added')[:DLS_PER_PAGE]
gremmie@1 86 return render_to_response('downloads/download_summary.html', {
gremmie@1 87 'downloads' : downloads,
gremmie@1 88 'title' : 'Newest Downloads',
gremmie@1 89 },
gremmie@1 90 context_instance = RequestContext(request))
gremmie@1 91
gremmie@1 92 #######################################################################
gremmie@1 93
gremmie@1 94 @login_required
gremmie@1 95 def popular(request):
gremmie@1 96 downloads = Download.public_objects.order_by('-hits')[:DLS_PER_PAGE]
gremmie@1 97 return render_to_response('downloads/download_summary.html', {
gremmie@1 98 'downloads' : downloads,
gremmie@1 99 'title' : 'Popular Downloads',
gremmie@1 100 },
gremmie@1 101 context_instance = RequestContext(request))
gremmie@1 102
gremmie@1 103 #######################################################################
gremmie@1 104
gremmie@1 105 @login_required
gremmie@1 106 def rating(request):
gremmie@1 107 downloads = Download.public_objects.order_by('-average_score')[:DLS_PER_PAGE]
gremmie@1 108 return render_to_response('downloads/download_summary.html', {
gremmie@1 109 'downloads' : downloads,
gremmie@1 110 'title' : 'Highest Rated Downloads',
gremmie@1 111 },
gremmie@1 112 context_instance = RequestContext(request))
gremmie@1 113
gremmie@1 114 #######################################################################
gremmie@1 115
gremmie@1 116 @login_required
gremmie@1 117 def download(request, id):
gremmie@1 118 download = Download.public_objects.get(pk=id)
gremmie@1 119 if download is None:
gremmie@1 120 raise Http404
gremmie@1 121 return _redirect_download(download)
gremmie@1 122
gremmie@1 123 #######################################################################
gremmie@1 124
gremmie@1 125 def _redirect_download(download):
gremmie@1 126 download.hits += 1
gremmie@1 127 download.save()
gremmie@1 128 return HttpResponseRedirect(download.file.url)
gremmie@1 129
gremmie@1 130 #######################################################################
gremmie@1 131
gremmie@1 132 @login_required
bgneal@23 133 def details(request, id):
gremmie@1 134 download = Download.public_objects.get(pk=id)
gremmie@1 135 if download is None:
gremmie@1 136 raise Http404
bgneal@23 137 return render_to_response('downloads/download_detail.html', {
gremmie@1 138 'download' : download,
gremmie@1 139 },
gremmie@1 140 context_instance = RequestContext(request))
gremmie@1 141
gremmie@1 142 #######################################################################
gremmie@1 143
gremmie@1 144 @login_required
gremmie@1 145 def random_download(request):
gremmie@1 146 ids = Download.public_objects.values_list('id', flat=True)
gremmie@1 147 if not ids:
gremmie@1 148 raise Http404
gremmie@1 149 id = random.choice(ids)
gremmie@1 150 download = Download.objects.get(pk=id)
gremmie@1 151 return _redirect_download(download)
gremmie@1 152
gremmie@1 153 #######################################################################
gremmie@1 154
gremmie@1 155 @login_required
gremmie@1 156 def add(request):
gremmie@1 157 if request.method == 'POST':
gremmie@1 158 form = AddDownloadForm(request.POST, request.FILES)
gremmie@1 159 if form.is_valid():
gremmie@1 160 dl = form.save(commit=False)
gremmie@1 161 dl.user = request.user
gremmie@1 162 dl.ip_address = request.META.get('REMOTE_ADDR', None)
gremmie@1 163 dl.is_public = False
gremmie@1 164 dl.save()
gremmie@1 165 email_admins('New download for approval', """Hello,
gremmie@1 166
gremmie@1 167 A user has uploaded a new download for your approval.
gremmie@1 168 """)
gremmie@1 169 return HttpResponseRedirect(reverse('downloads-add_thanks'))
gremmie@1 170 else:
gremmie@1 171 form = AddDownloadForm()
gremmie@1 172
gremmie@1 173 return render_to_response('downloads/add.html', {
gremmie@1 174 'add_form': form,
gremmie@1 175 },
gremmie@1 176 context_instance=RequestContext(request))
gremmie@1 177
gremmie@1 178 #######################################################################
gremmie@1 179
gremmie@1 180 @login_required
gremmie@1 181 def thanks(request):
gremmie@1 182 return render_to_response('downloads/thanks.html', {
gremmie@1 183 },
gremmie@1 184 context_instance=RequestContext(request))
gremmie@1 185
gremmie@1 186 #######################################################################
gremmie@1 187
gremmie@1 188 @login_required
gremmie@1 189 def search(request, page=1):
gremmie@1 190 if request.method == 'POST':
gremmie@1 191 form = SearchForm(request.POST)
gremmie@1 192 if form.is_valid():
gremmie@1 193 query_text = form.query()
gremmie@1 194 page = 1
gremmie@1 195 else:
gremmie@1 196 return HttpResponseRedirect(reverse('downloads-index'))
gremmie@1 197 else:
gremmie@1 198 if 'query' in request.GET:
gremmie@1 199 query_text = request.GET['query']
gremmie@1 200 else:
gremmie@1 201 return HttpResponseRedirect(reverse('downloads-index'))
gremmie@1 202
gremmie@1 203 dls = Download.objects.filter(
gremmie@1 204 Q(title__icontains = query_text) |
gremmie@1 205 Q(description__icontains = query_text)).order_by('title')
gremmie@1 206 paginator = create_paginator(dls)
gremmie@1 207 try:
gremmie@1 208 the_page = paginator.page(int(page))
gremmie@1 209 except EmptyPage:
gremmie@1 210 dls = Download.objects.none()
gremmie@1 211 except InvalidPage:
gremmie@1 212 raise Http404
gremmie@1 213
gremmie@1 214 return render_to_response('downloads/search_results.html', {
gremmie@1 215 'query': query_text,
gremmie@1 216 'page': the_page,
gremmie@1 217 },
gremmie@1 218 context_instance = RequestContext(request))
gremmie@1 219
gremmie@1 220 #######################################################################
gremmie@1 221
gremmie@1 222 @require_POST
gremmie@1 223 def rate_download(request):
gremmie@1 224 """This function is called by AJAX to rate a download."""
gremmie@1 225 if request.user.is_authenticated():
gremmie@1 226 id = request.POST.get('id', None)
gremmie@1 227 rating = request.POST.get('rating', None)
gremmie@1 228 if id is None or rating is None:
gremmie@1 229 return HttpResponseBadRequest('Missing id or rating.')
gremmie@1 230
gremmie@1 231 try:
gremmie@1 232 rating = int(rating)
gremmie@1 233 except ValueError:
gremmie@1 234 return HttpResponseBadRequest('Invalid rating.')
gremmie@1 235
gremmie@1 236 # rating will be from 0-4
gremmie@1 237 rating = min(5, max(1, rating))
gremmie@1 238
gremmie@1 239 try:
gremmie@1 240 download = Download.public_objects.get(pk=id)
gremmie@1 241 except Download.DoesNotExist:
gremmie@1 242 return HttpResponseBadRequest('Invalid download id.')
gremmie@1 243
gremmie@1 244 # prevent multiple votes from the same user
gremmie@1 245 vote_record, created = VoteRecord.objects.get_or_create(download=download, user=request.user)
gremmie@1 246 if created:
gremmie@1 247 new_score = download.vote(rating)
gremmie@1 248 download.save()
gremmie@1 249 return HttpResponse(str(new_score))
gremmie@1 250 else:
gremmie@1 251 return HttpResponse('-1')
gremmie@1 252
gremmie@1 253 return HttpResponseForbidden('You must be logged in to rate a download.')