pisaを使用して PDFを生成します。form.is_valid() と電子メールに PDF を添付したときの間のどこかでそれを行います。
これら 3 つの関数がコードベースに追加されたため、どこからでも PDF を生成できます。
import os
import StringIO
import xhtml2pdf.pisa as pisa
def fetch_resources(uri, rel):
"""
Callback to allow xhtml2pdf/reportlab to retrieve Images,Stylesheets, etc.
`uri` is the href attribute from the html link element.
`rel` gives a relative path, but it's not used here.
"""
if uri.startswith(settings.MEDIA_URL):
path = os.path.join(settings.MEDIA_ROOT,
uri.replace(settings.MEDIA_URL, ""))
elif uri.startswith(settings.STATIC_URL):
path = os.path.join(settings.STATIC_ROOT,
uri.replace(settings.STATIC_URL, ""))
else:
path = os.path.join(settings.STATIC_ROOT,
uri.replace(settings.STATIC_URL, ""))
if not os.path.isfile(path):
path = os.path.join(settings.MEDIA_ROOT,
uri.replace(settings.MEDIA_URL, ""))
if not os.path.isfile(path):
raise Exception(
'media urls must start with %s or %s' % (
settings.MEDIA_ROOT, settings.STATIC_ROOT))
return path
def render_to_pdf(template_src, context_dict):
"""Function to render html template into a pdf file"""
template = get_template(template_src)
context = Context(context_dict)
html = template.render(context)
result = StringIO.StringIO()
pdf = pisa.pisaDocument(StringIO.StringIO(html.encode("UTF-8")),
dest=result,
encoding='UTF-8',
link_callback=fetch_resources)
if not pdf.err:
response = HttpResponse(result.getvalue(), mimetype='application/pdf')
return response
return HttpResponse('We had some errors<pre>%s</pre>' % escape(html))
def write_pdf(template_src, context_dict, filename):
template = get_template(template_src)
context = Context(context_dict)
html = template.render(context)
result = open(filename, 'wb') # Changed from file to filename
pisa.pisaDocument(StringIO.StringIO(html.encode("UTF-8")), result)
result.close()