Mercurial > public > sg101

annotate downloads/views.py @ 853:9cea980bf24d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add "new" icon next to Guitar Instruction link on sidebar.
author Brian Neal <bgneal@gmail.com>
date Wed, 05 Nov 2014 19:21:10 -0600
parents 41d0389fc85a
children a5ebc74dc3f3
rev   line source
gremmie@1 1 """
gremmie@1 2 Views for the downloads application.
gremmie@1 3 """
bgneal@679 4 import json
gremmie@1 5
bgneal@480 6 from django.shortcuts import render_to_response, get_object_or_404
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@404 14 from django.http import HttpResponseNotFound
bgneal@92 15 from django.core.paginator import InvalidPage
gremmie@1 16 from django.core.urlresolvers import reverse
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
bgneal@241 21 from core.functions import get_page
gremmie@1 22 from downloads.models import Category
gremmie@1 23 from downloads.models import Download
gremmie@1 24 from downloads.models import VoteRecord
gremmie@1 25 from downloads.forms import AddDownloadForm
gremmie@1 26
gremmie@1 27 #######################################################################
gremmie@1 28
bgneal@242 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 = {
bgneal@404 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
bgneal@241 57 def category(request, slug, sort='title'):
bgneal@480 58
bgneal@480 59 cat = get_object_or_404(Category, slug=slug)
gremmie@1 60
gremmie@1 61 if sort not in DOWNLOAD_FIELD_MAP:
gremmie@1 62 sort = 'title'
gremmie@1 63 order_by = DOWNLOAD_FIELD_MAP[sort]
gremmie@1 64
bgneal@190 65 downloads = Download.public_objects.filter(category=cat.pk).order_by(
bgneal@190 66 order_by)
gremmie@1 67 paginator = create_paginator(downloads)
bgneal@241 68 page = get_page(request.GET)
gremmie@1 69 try:
bgneal@241 70 the_page = paginator.page(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,
bgneal@404 77 'page' : the_page,
bgneal@404 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):
bgneal@243 85 """Display new downloads with pagination."""
bgneal@243 86
bgneal@243 87 downloads = Download.public_objects.order_by('-date_added')
bgneal@243 88
bgneal@243 89 paginator = create_paginator(downloads)
bgneal@243 90 page = get_page(request.GET)
bgneal@243 91 try:
bgneal@243 92 the_page = paginator.page(page)
bgneal@243 93 except InvalidPage:
bgneal@243 94 raise Http404
bgneal@243 95
gremmie@1 96 return render_to_response('downloads/download_summary.html', {
bgneal@243 97 'page': the_page,
bgneal@243 98 'title': 'Newest Downloads',
bgneal@404 99 },
gremmie@1 100 context_instance = RequestContext(request))
gremmie@1 101
gremmie@1 102 #######################################################################
gremmie@1 103
gremmie@1 104 @login_required
gremmie@1 105 def popular(request):
bgneal@243 106 """Display popular downloads with pagination."""
bgneal@243 107
bgneal@243 108 downloads = Download.public_objects.order_by('-hits')
bgneal@243 109
bgneal@243 110 paginator = create_paginator(downloads)
bgneal@243 111 page = get_page(request.GET)
bgneal@243 112 try:
bgneal@243 113 the_page = paginator.page(page)
bgneal@243 114 except InvalidPage:
bgneal@243 115 raise Http404
bgneal@243 116
gremmie@1 117 return render_to_response('downloads/download_summary.html', {
bgneal@243 118 'page': the_page,
bgneal@243 119 'title': 'Popular Downloads',
bgneal@404 120 },
gremmie@1 121 context_instance = RequestContext(request))
gremmie@1 122
gremmie@1 123 #######################################################################
gremmie@1 124
gremmie@1 125 @login_required
gremmie@1 126 def rating(request):
bgneal@243 127 """Display downloads by rating with pagination."""
bgneal@243 128
bgneal@243 129 downloads = Download.public_objects.order_by('-average_score')
bgneal@243 130 paginator = create_paginator(downloads)
bgneal@243 131 page = get_page(request.GET)
bgneal@243 132 try:
bgneal@243 133 the_page = paginator.page(page)
bgneal@243 134 except InvalidPage:
bgneal@243 135 raise Http404
bgneal@243 136
gremmie@1 137 return render_to_response('downloads/download_summary.html', {
bgneal@243 138 'page': the_page,
bgneal@243 139 'title': 'Highest Rated Downloads',
bgneal@404 140 },
gremmie@1 141 context_instance = RequestContext(request))
gremmie@1 142
gremmie@1 143 #######################################################################
gremmie@1 144
gremmie@1 145 @login_required
bgneal@23 146 def details(request, id):
bgneal@480 147 download = get_object_or_404(Download.public_objects, pk=id)
bgneal@845 148 if not download.is_public:
bgneal@845 149 raise Http404
bgneal@23 150 return render_to_response('downloads/download_detail.html', {
gremmie@1 151 'download' : download,
bgneal@404 152 },
gremmie@1 153 context_instance = RequestContext(request))
gremmie@1 154
gremmie@1 155 #######################################################################
gremmie@1 156
gremmie@1 157 @login_required
gremmie@1 158 def add(request):
gremmie@1 159 if request.method == 'POST':
gremmie@1 160 form = AddDownloadForm(request.POST, request.FILES)
gremmie@1 161 if form.is_valid():
gremmie@1 162 dl = form.save(commit=False)
gremmie@1 163 dl.user = request.user
gremmie@1 164 dl.ip_address = request.META.get('REMOTE_ADDR', None)
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 @require_POST
gremmie@1 190 def rate_download(request):
gremmie@1 191 """This function is called by AJAX to rate a download."""
gremmie@1 192 if request.user.is_authenticated():
gremmie@1 193 id = request.POST.get('id', None)
gremmie@1 194 rating = request.POST.get('rating', None)
gremmie@1 195 if id is None or rating is None:
gremmie@1 196 return HttpResponseBadRequest('Missing id or rating.')
bgneal@404 197
gremmie@1 198 try:
gremmie@1 199 rating = int(rating)
gremmie@1 200 except ValueError:
gremmie@1 201 return HttpResponseBadRequest('Invalid rating.')
gremmie@1 202
gremmie@1 203 # rating will be from 0-4
gremmie@1 204 rating = min(5, max(1, rating))
gremmie@1 205
bgneal@480 206 download = get_object_or_404(Download.public_objects, pk=id)
gremmie@1 207
gremmie@1 208 # prevent multiple votes from the same user
bgneal@241 209 vote_record, created = VoteRecord.objects.get_or_create(
bgneal@241 210 download=download, user=request.user)
gremmie@1 211 if created:
gremmie@1 212 new_score = download.vote(rating)
gremmie@1 213 download.save()
gremmie@1 214 return HttpResponse(str(new_score))
gremmie@1 215 else:
gremmie@1 216 return HttpResponse('-1')
gremmie@1 217
gremmie@1 218 return HttpResponseForbidden('You must be logged in to rate a download.')
bgneal@404 219
bgneal@404 220 #######################################################################
bgneal@404 221
bgneal@404 222 @require_POST
bgneal@404 223 def request_download(request):
bgneal@404 224 """
bgneal@404 225 This function is called by AJAX to request a download. We update the hit
bgneal@404 226 count and then return a JSON object of the form:
bgneal@404 227 { id: download-id, 'url': link-to-download }
bgneal@404 228
bgneal@404 229 """
bgneal@404 230 if request.user.is_authenticated():
bgneal@404 231 dl_id = request.POST.get('id')
bgneal@404 232 if dl_id:
bgneal@404 233 try:
bgneal@404 234 dl = Download.public_objects.get(pk=dl_id)
bgneal@404 235 except Download.DoesNotExist:
bgneal@404 236 return HttpResponseNotFound("Download not found")
bgneal@404 237
bgneal@404 238 dl.hits += 1
bgneal@404 239 dl.save()
bgneal@404 240
bgneal@404 241 s = json.dumps({'id': dl_id, 'url': dl.file.url})
bgneal@404 242 return HttpResponse(s, content_type='application/json')
bgneal@404 243
bgneal@404 244 return HttpResponseForbidden('An error occurred.')