Django与比萨的pdf问题

Question

我想使用pisa为pdf文件生成一个html模板.我相信我拥有我需要的所有包裹,但我似乎遇到了问题.以下是我到目前为止的观点.

编辑:这是我最新的网址,视图和模板.

url.py

(r'^index/render_pdf/(?P<id>\d+)/$', render_pdf),

views.py

def fetch_resources(uri, rel):
    path = os.path.join(settings.MEDIA_ROOT, uri.replace(settings.MEDIA_URL, ""))
    return path

def render_pdf (html, id):
    invoice_items_list = Invoice_Items.objects.filter(pk=id)
    result = StringIO.StringIO()
    pdf = pisa.pisaDocument(StringIO.StringIO(html.encode("ISO-8859-1")), dest=result, link_callback=fetch_resources)
    return result

在模板中,我有这个标签.

<a href="{% url c2duo.views.render_pdf invoices.pk %}">

Answer 1

我不知道这有多大帮助，但这是我用来渲染 pdf 的函数：

def fetch_resources(uri, rel):
 """
 Callback to allow pisa/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.

 """
 path = os.path.join(settings.MEDIA_ROOT, uri.replace(settings.MEDIA_URL, ""))
 return path

def render_pdf (html):
 result = StringIO.StringIO()
 pdf = pisa.pisaDocument(StringIO.StringIO(html.encode("ISO-8859-1")), dest=result, link_callback=fetch_resources)
 return result