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 render_to_response_filtered(template, queryset, params=None, mimetype="text/xml"):
"""
Renders a queryset to xml but it strips all objects that have a field named
published that is set to False.
:param template: The xslt template path.
:param queryset: The queryset that should be turned into xml.
:param params: xslt params, correctly escaped using :func:`~easymode.xslt.response.prepare_string_param`
:param mimetype: The mimetype of the response.
:result: A :class:`~django.http.HttpResponse` with xml, with only published models.
"""
xml = filter_unpublished(to_xml(queryset))
return HttpResponse(render_xml_to_string(template, xml, params), mimetype=mimetype)
def render_to_response_with_revision(template, queryset, revision_id, params=None, mimetype="text/html"):
"""
Renders a queryset to xml, but inserts the data from revision *revision_id*
in the appropriate place. This can be used to enable previews
:param template: The xslt template path.
:param queryset: The queryset that should be turned into xml.
:param revision_id: The id of the revision whose data we want to include in the xml.
:param params: xslt params, correctly escaped using :func:`~easymode.xslt.response.prepare_string_param`
:param mimetype: The mimetype of the response.
:result: A :class:`~django.http.HttpResponse` with xml, including the data in revision *revision_id*
"""
xml = insert_draft(revision_id, to_xml(queryset))
return HttpResponse(render_xml_to_string(template, xml, params), mimetype=mimetype)
def render_to_response_filtered(template,
queryset,
params=None,
mimetype='text/xml'):
"""
Renders a queryset to xml but it strips all objects that have a field named
published that is set to False.
:param template: The xslt template path.
:param queryset: The queryset that should be turned into xml.
:param params: xslt params, correctly escaped using :func:`~easymode.xslt.response.prepare_string_param`
:param mimetype: The mimetype of the response.
:result: A :class:`~django.http.HttpResponse` with xml, with only published models.
"""
xml = filter_unpublished(to_xml(queryset))
return HttpResponse(render_xml_to_string(template, xml, params),
mimetype=mimetype)
def render_to_response_with_revision(template,
queryset,
revision_id,
params=None,
mimetype='text/html'):
"""
Renders a queryset to xml, but inserts the data from revision *revision_id*
in the appropriate place. This can be used to enable previews
:param template: The xslt template path.
:param queryset: The queryset that should be turned into xml.
:param revision_id: The id of the revision whose data we want to include in the xml.
:param params: xslt params, correctly escaped using :func:`~easymode.xslt.response.prepare_string_param`
:param mimetype: The mimetype of the response.
:result: A :class:`~django.http.HttpResponse` with xml, including the data in revision *revision_id*
"""
xml = insert_draft(revision_id, to_xml(queryset))
return HttpResponse(render_xml_to_string(template, xml, params),
mimetype=mimetype)
