Mercurial > public > sg101
view downloads/views.py @ 1139:bb82177cc236
Issue #92 missing javascript for new post box.
author | Brian Neal <bgneal@gmail.com> |
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date | Thu, 27 Oct 2016 19:47:20 -0500 (2016-10-28) |
parents | e1c03da72818 |
children | 0e0cd152b86d |
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""" Views for the downloads application. """ import json from django.shortcuts import render, get_object_or_404 from django.contrib.auth.decorators import login_required from django.http import Http404 from django.http import HttpResponse from django.http import HttpResponseRedirect from django.http import HttpResponseForbidden from django.http import HttpResponseBadRequest from django.http import HttpResponseNotFound from django.core.paginator import InvalidPage from django.core.urlresolvers import reverse from django.views.decorators.http import require_POST from core.paginator import DiggPaginator from core.functions import email_admins from core.functions import get_page from downloads.models import Category from downloads.models import Download from downloads.models import VoteRecord from downloads.forms import AddDownloadForm ####################################################################### DLS_PER_PAGE = 10 def create_paginator(dls): return DiggPaginator(dls, DLS_PER_PAGE, body=5, tail=3, margin=3, padding=2) ####################################################################### @login_required def index(request): categories = Category.objects.all() total_dls = Download.public_objects.all().count() return render(request, 'downloads/index.html', { 'categories': categories, 'total_dls': total_dls, }) ####################################################################### # Maps URL component to database field name for the Download table: DOWNLOAD_FIELD_MAP = { 'title': 'title', 'date': '-date_added', 'rating': '-average_score', 'hits': '-hits' } @login_required def category(request, slug, sort='title'): cat = get_object_or_404(Category, slug=slug) if sort not in DOWNLOAD_FIELD_MAP: sort = 'title' order_by = DOWNLOAD_FIELD_MAP[sort] downloads = Download.public_objects.filter(category=cat.pk).order_by( order_by) paginator = create_paginator(downloads) page = get_page(request.GET) try: the_page = paginator.page(page) except InvalidPage: raise Http404 return render(request, 'downloads/download_list.html', { 's' : sort, 'category' : cat, 'page' : the_page, }) ####################################################################### @login_required def new(request): """Display new downloads with pagination.""" downloads = Download.public_objects.order_by('-date_added') paginator = create_paginator(downloads) page = get_page(request.GET) try: the_page = paginator.page(page) except InvalidPage: raise Http404 return render(request, 'downloads/download_summary.html', { 'page': the_page, 'title': 'Newest Downloads', }) ####################################################################### @login_required def popular(request): """Display popular downloads with pagination.""" downloads = Download.public_objects.order_by('-hits') paginator = create_paginator(downloads) page = get_page(request.GET) try: the_page = paginator.page(page) except InvalidPage: raise Http404 return render(request, 'downloads/download_summary.html', { 'page': the_page, 'title': 'Popular Downloads', }) ####################################################################### @login_required def rating(request): """Display downloads by rating with pagination.""" downloads = Download.public_objects.order_by('-average_score') paginator = create_paginator(downloads) page = get_page(request.GET) try: the_page = paginator.page(page) except InvalidPage: raise Http404 return render(request, 'downloads/download_summary.html', { 'page': the_page, 'title': 'Highest Rated Downloads', }) ####################################################################### @login_required def details(request, id): download = get_object_or_404(Download.public_objects, pk=id) if not download.is_public: raise Http404 return render(request, 'downloads/download_detail.html', { 'download' : download, }) ####################################################################### @login_required def add(request): if request.method == 'POST': form = AddDownloadForm(request.POST, request.FILES) if form.is_valid(): dl = form.save(commit=False) dl.user = request.user dl.ip_address = request.META.get('REMOTE_ADDR', None) dl.save(html=form.html) email_admins('New download for approval', """Hello, A user has uploaded a new download for your approval. """) return HttpResponseRedirect(reverse('downloads-add_thanks')) else: form = AddDownloadForm() return render(request, 'downloads/add.html', { 'add_form': form, }) ####################################################################### @login_required def thanks(request): return render(request, 'downloads/thanks.html', { }) ####################################################################### @require_POST def rate_download(request): """This function is called by AJAX to rate a download.""" if request.user.is_authenticated(): id = request.POST.get('id', None) rating = request.POST.get('rating', None) if id is None or rating is None: return HttpResponseBadRequest('Missing id or rating.') try: rating = int(rating) except ValueError: return HttpResponseBadRequest('Invalid rating.') # rating will be from 0-4 rating = min(5, max(1, rating)) download = get_object_or_404(Download.public_objects, pk=id) # prevent multiple votes from the same user vote_record, created = VoteRecord.objects.get_or_create( download=download, user=request.user) if created: new_score = download.vote(rating) download.save() return HttpResponse(str(new_score)) else: return HttpResponse('-1') return HttpResponseForbidden('You must be logged in to rate a download.') ####################################################################### @require_POST def request_download(request): """ This function is called by AJAX to request a download. We update the hit count and then return a JSON object of the form: { id: download-id, 'url': link-to-download } """ if request.user.is_authenticated(): dl_id = request.POST.get('id') if dl_id: try: dl = Download.public_objects.get(pk=dl_id) except Download.DoesNotExist: return HttpResponseNotFound("Download not found") dl.hits += 1 dl.save() s = json.dumps({'id': dl_id, 'url': dl.file.url}) return HttpResponse(s, content_type='application/json') return HttpResponseForbidden('An error occurred.')