gremmie@1: """
gremmie@1: Views for the weblinks application.
bgneal@675: 
gremmie@1: """
gremmie@1: import random
gremmie@1: from django.shortcuts import render_to_response
gremmie@1: from django.template import RequestContext
bgneal@92: from django.core.paginator import InvalidPage
bgneal@165: from django.http import HttpResponse
bgneal@165: from django.http import HttpResponseBadRequest
gremmie@1: from django.http import HttpResponseRedirect
gremmie@1: from django.contrib.auth.decorators import login_required
gremmie@1: from django.shortcuts import get_object_or_404
gremmie@1: from django.core.urlresolvers import reverse
gremmie@1: from django.http import Http404
bgneal@165: from django.views.decorators.http import require_POST
gremmie@1: 
gremmie@1: from core.paginator import DiggPaginator
gremmie@1: from core.functions import email_admins
bgneal@242: from core.functions import get_page
gremmie@1: from weblinks.models import Category
gremmie@1: from weblinks.models import Link
gremmie@1: from weblinks.models import FlaggedLink
gremmie@1: from weblinks.forms import AddLinkForm
gremmie@1: 
gremmie@1: #######################################################################
gremmie@1: 
gremmie@1: LINKS_PER_PAGE = 10
gremmie@1: 
gremmie@1: def create_paginator(links):
gremmie@1:    return DiggPaginator(links, LINKS_PER_PAGE, body=5, tail=3, margin=3, padding=2)
gremmie@1: 
gremmie@1: #######################################################################
gremmie@1: 
gremmie@1: def link_index(request):
gremmie@1:    categories = Category.objects.all()
gremmie@1:    total_links = Link.public_objects.all().count()
gremmie@1:    return render_to_response('weblinks/index.html', {
bgneal@675:       'categories': categories,
gremmie@1:       'total_links': total_links,
gremmie@1:       },
gremmie@1:       context_instance = RequestContext(request))
gremmie@1: 
gremmie@1: #######################################################################
gremmie@1: 
gremmie@1: def new_links(request):
bgneal@242:    links = Link.public_objects.order_by('-date_added')
bgneal@242:    paginator = create_paginator(links)
bgneal@242:    page = get_page(request.GET)
bgneal@242:    try:
bgneal@242:       the_page = paginator.page(page)
bgneal@242:    except InvalidPage:
bgneal@242:       raise Http404
bgneal@242: 
gremmie@1:    return render_to_response('weblinks/link_summary.html', {
bgneal@675:       'page': the_page,
gremmie@1:       'title': 'Newest Links',
gremmie@1:       },
gremmie@1:       context_instance = RequestContext(request))
gremmie@1: 
gremmie@1: #######################################################################
gremmie@1: 
gremmie@1: def popular_links(request):
bgneal@242:    links = Link.public_objects.order_by('-hits')
bgneal@242:    paginator = create_paginator(links)
bgneal@242:    page = get_page(request.GET)
bgneal@242:    try:
bgneal@242:       the_page = paginator.page(page)
bgneal@242:    except InvalidPage:
bgneal@242:       raise Http404
gremmie@1:    return render_to_response('weblinks/link_summary.html', {
bgneal@675:       'page': the_page,
gremmie@1:       'title': 'Popular Links',
gremmie@1:       },
gremmie@1:       context_instance = RequestContext(request))
gremmie@1: 
gremmie@1: #######################################################################
gremmie@1: 
gremmie@1: @login_required
gremmie@1: def add_link(request):
gremmie@1:    if request.method == 'POST':
gremmie@1:       add_form = AddLinkForm(request.POST)
gremmie@1:       if add_form.is_valid():
gremmie@1:          new_link = add_form.save(commit=False)
gremmie@1:          new_link.user = request.user
gremmie@1:          new_link.save()
gremmie@1:          email_admins('New link for approval', """Hello,
gremmie@1: 
gremmie@1: A user has added a new link for your approval.
gremmie@1: """)
bgneal@242:          return HttpResponseRedirect(reverse('weblinks-add_thanks'))
gremmie@1:    else:
gremmie@1:       add_form = AddLinkForm()
gremmie@1: 
gremmie@1:    return render_to_response('weblinks/add_link.html', {
gremmie@1:       'add_form': add_form,
gremmie@1:       },
gremmie@1:       context_instance = RequestContext(request))
gremmie@1: 
gremmie@1: #######################################################################
gremmie@1: 
gremmie@1: @login_required
gremmie@1: def add_thanks(request):
gremmie@1:    return render_to_response('weblinks/add_link.html', {
gremmie@1:       },
gremmie@1:       context_instance = RequestContext(request))
gremmie@1: 
gremmie@1: #######################################################################
gremmie@1: 
gremmie@1: # Maps URL component to database field name for the links table:
gremmie@1: 
gremmie@1: LINK_FIELD_MAP = {
bgneal@675:    'title': 'title',
gremmie@1:    'date': '-date_added',
gremmie@1:    'hits': '-hits'
gremmie@1: }
gremmie@1: 
bgneal@242: def view_links(request, slug, sort='title'):
gremmie@1:    try:
bgneal@242:       cat = Category.objects.get(slug=slug)
gremmie@1:    except Category.DoesNotExist:
gremmie@1:       raise Http404
gremmie@1: 
gremmie@1:    if sort in LINK_FIELD_MAP:
gremmie@1:       order_by = LINK_FIELD_MAP[sort]
gremmie@1:    else:
gremmie@1:       sort = 'title'
gremmie@1:       order_by = LINK_FIELD_MAP['title']
gremmie@1: 
bgneal@242:    links = Link.public_objects.filter(category=cat).order_by(order_by)
gremmie@1:    paginator = create_paginator(links)
bgneal@242:    page = get_page(request.GET)
gremmie@1:    try:
bgneal@242:       the_page = paginator.page(page)
gremmie@1:    except InvalidPage:
gremmie@1:       raise Http404
gremmie@1: 
gremmie@1:    return render_to_response('weblinks/view_links.html', {
gremmie@1:       's' : sort,
gremmie@1:       'category' : cat,
bgneal@675:       'page' : the_page,
bgneal@675:       },
gremmie@1:       context_instance = RequestContext(request))
gremmie@1: 
gremmie@1: #######################################################################
gremmie@1: 
gremmie@1: def _visit_link(request, link):
gremmie@1:    link.hits += 1
gremmie@1:    link.save()
gremmie@1:    return HttpResponseRedirect(link.url)
gremmie@1: 
gremmie@1: #######################################################################
gremmie@1: 
bgneal@208: @require_POST
gremmie@1: def visit(request, link_id):
gremmie@1:    link = get_object_or_404(Link, pk = link_id)
gremmie@1:    return _visit_link(request, link)
gremmie@1: 
gremmie@1: #######################################################################
gremmie@1: 
bgneal@208: @require_POST
gremmie@1: def random_link(request):
gremmie@1:    ids = Link.public_objects.values_list('id', flat=True)
gremmie@1:    if not ids:
gremmie@1:        raise Http404
gremmie@1:    id = random.choice(ids)
gremmie@1:    random_link = Link.public_objects.get(pk=id)
gremmie@1:    return _visit_link(request, random_link)
gremmie@1: 
gremmie@1: #######################################################################
gremmie@1: 
bgneal@165: @require_POST
gremmie@1: def report_link(request, link_id):
bgneal@165:     """
bgneal@165:     This function is the target of an AJAX POST to report a link as dead.
bgneal@165:     """
bgneal@165:     if not request.user.is_authenticated():
bgneal@165:         return HttpResponse('Please login or register to report a broken link.')
gremmie@1: 
bgneal@165:     try:
bgneal@165:         link = Link.objects.get(pk=link_id)
bgneal@165:     except Link.DoesNotExist:
bgneal@165:         return HttpResponseBadRequest("That link doesn't exist.")
gremmie@1: 
bgneal@165:     FlaggedLink.objects.create(link, request.user)
bgneal@675:     return HttpResponse("The link was reported. A moderator will review the "
bgneal@675:             "link shortly. Thanks for helping to improve the content on "
bgneal@165:             "this site.")
gremmie@1: 
gremmie@1: #######################################################################
gremmie@1: 
bgneal@20: def link_detail(request, id):
bgneal@20:     link = get_object_or_404(Link, pk=id)
bgneal@20:     return render_to_response('weblinks/link_detail.html', {
bgneal@675:         'link': link,
bgneal@20:         },
bgneal@20:         context_instance = RequestContext(request))