在django中使用docraptor生成Pdf

时间:2014-03-07 10:30:55

标签: python django pdf

我有一个django应用程序,其中我有一个显示一些数据和图像的页面,现在我需要将该HTML页面转换为pdf,所以我尝试使用Docraptor

以下是我生成pdf的代码/视图

def generate_report_pdf(request, user_id):
    site = Site.objects.get(id=settings.SITE_ID)
    url = site.domain + reverse('overview', args=[user_id,])
    docraptor = DocRaptor(settings.DOCRAPTOR_API_KEY)
    with open("test.pdf", "wb") as f:
        f.write(docraptor.create({
            'document_url': url,
            'test': True,
            'document_type':'pdf',
        }).content)

    print f,f.name,">>>>>>>>>>>>"
    print type(f),">>>>>>>>>>>>"
    print dir(f),">>>>>>>>>>>>"
    file = open(f, 'r').read()
    return HttpResponse(file, mimetype='application/pdf')

输出:

Exception Type: TypeError
Exception Value:    coercing to Unicode: need string or buffer, file found

此错误发生在第file = open(f, 'r').read()

以上打印陈述的输出

<closed file 'test.pdf', mode 'wb' at 0x7faea05a59c0> test.pdf >>>>>>>>>>>>
<type 'file'> >>>>>>>>>>>>
['__class__', '__delattr__', '__doc__', '__enter__', '__exit__', '__format__', '__getattribute__', '__hash__', '__init__', '__iter__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'close', 'closed', 'encoding', 'errors', 'fileno', 'flush', 'isatty', 'mode', 'name', 'newlines', 'next', 'read', 'readinto', 'readline', 'readlines', 'seek', 'softspace', 'tell', 'truncate', 'write', 'writelines', 'xreadlines'] 

那么为什么我会收到这个Exception Value: coercing to Unicode: need string or buffer, file found错误以及如何在django中显示我得到的pdf文件?

1 个答案:

答案 0 :(得分:2)

而不是这个 -

file = open(f, 'r').read()

file = open(f.name, 'r').read()

您正在传递文件对象,而该函数需要文件路径/名称。