def create_pdf(request, slug):
"""Returns article as PDF, with the help of RML markup."""
from rml import rml2pdf
# We only allow PDF creation of existing articles
article = get_object_or_404(Article, slug__iexact=slug)
# Create XML of article, with content unescaped
unescaped_article = render_to_string('article-to-xml.xsl', article)
# Generate RML of article
format = "%a, %d %b %Y %H:%M:%S"
timestamp = datetime.datetime.today().strftime(format)
params = {'timestamp' : xslt_param_builder(timestamp)}
rml = StringIO.StringIO(render_xml_to_string('rml.xsl', unescaped_article, params))
# Create the PDF
buf = cStringIO.StringIO()
rml2pdf.go(rml, outputFileName=buf)
buf.seek(0)
pdf = buf.read()
buf.close()
# Set up response object
response = HttpResponse(mimetype='application/pdf')
response.write(pdf)
response['Content-Disposition'] = ('attachment; filename=%s.pdf' % article.title)
return response
def edit_article(request, slug):
article = None
params = {}
try:
# Enables case-insentivity
article = Article.objects.get(slug__iexact=slug)
if article.slug != slug:
return HttpResponseRedirect(reverse('edit_article', args=[article.slug]))
except Article.DoesNotExist:
title = slug.replace('_', ' ')
article = Article(title=title, creator=request.user)
if request.method == 'GET':
# Check mutual exclusion
lock = cache.get(article.title, None)
if lock is None:
lock = EditLock(article.title, request)
elif not lock.is_mine(request):
print "Possible editing conflict. Another user started editing", lock.created_at
params['locked'] = xslt_param_builder("True")
format = "%d %b %Y %H:%M:%S"
params['lock_created'] = xslt_param_builder( lock.created_at.strftime(format) )
elif request.method == 'POST':
article.title = request.POST['title']
article.content = request.POST['content']
article.save()
cache.delete(article.title)
view_url = reverse('view_article', args=[article.slug])
return HttpResponseRedirect(view_url)
view_url = reverse('view_article', args=[slug])
params['viewurl'] = xslt_param_builder(view_url)
return render_to_response('edit_article.xsl', article, params)
def search(request):
if request.method == 'POST':
result = query(request.POST['query'])
# Redirect straight to single result
if len(result) == 1:
view_url = reverse('view_article', args=[result[0].slug])
return HttpResponseRedirect(view_url)
params = {'query' : xslt_param_builder(request.POST['query'])}
return render_to_response('search.xsl', result, params)
def view_article(request, slug):
edit_url = reverse('edit_article', args=[slug])
try:
# Enables case-insentivity
article = Article.objects.get(slug__iexact=slug)
if article.slug != slug:
return HttpResponseRedirect(reverse('view_article', args=[article.slug]))
params = {'editurl' : xslt_param_builder(edit_url)}
return render_to_response('article.xsl', article, params)
# If the article does not exist, we go to edit mode
except Article.DoesNotExist:
return HttpResponseRedirect(edit_url)
