Question

I am trying to pass some arguments with a link url href in a template to a view.

In my template :

<a href="/print-permission-document/ studentname={{studentinfo.0}} studentsurname={{studentinfo.1}} studentclass={{studentinfo.2}} doctype=doctype-studentlatepermission">Print</a>

So i am trying to pass 4 arguments to my view.

My view is :

def print_permission_document(request, studentname, studentsurname, studentclass, doctype):
file_write(studentname.encode('utf-8')+" "+studentsurname.encode('utf-8')+" "+studentclass+" "+doctype)
return response

My urls.py is :

url(r'^print-permission-document/.+$', print_permission_document, name='print-permission-document')

But i get below error :

Exception Type: TypeError Exception Value:
print_permission_document() takes exactly 5 arguments (1 given)

Answer 1

这不是不是，您如何在URL中指定多个参数，通常是在URL中编写这些参数，例如：

url(
    r'^print-permission-document/(?P<studentname>\w+)/(?P<studentsurname>\w+)/(?P<studentclass>\w+)/(?P<doctype>[\w-]+)/$',
    print_permission_document, name='print-permission-document'
)

然后您使用以下方法生成相应的URL：

<a href="{% url 'print-permission-document' studentname=studentinfo.0 studentsurname=studentinfo.1 studentclass=studentinfo.2 doctype='doctype-studentlatepermission' %}">Print</a>

这将生成一个类似于以下内容的URL：

/print-permission-document/somename/someclass/doctype-studentlatepermission

通常，路径中不不包含键值对，如果包含，则您需要自己对它们进行“解码”。

您还可以生成一个 querystring （在问号之后），然后您可以在request.GET [Django-doc]中访问这些内容。

Answer 2

您错误地传递了URL。并且模板中的URL也被错误地声明。

尝试

<a href="{% url 'print-permission-document' studentinfo1, studentinfo2, ... %}">Print</a>

url(
    r'^print-permission-document/(?P<studentname>\w+)/(?P<studentsurname>\w+)/(?P<studentclass>\w+)/(?P<doctype>\w+)/$',
    print_permission_document, name='print-permission-document'
)

Answer 3

我有同样的错误，我通过以下方式纠正了它：

url(r'^auth_app/remove_user/(?P<username2>[-\w]+)/$', views.remove_user, name="remove_user"),

使用此模式传递字符串

(?P<username2>[-\w]+)

此为整数值

(?P<user_id>[0-9]+)

Passing multiple arguments from django template href link to view

3 个答案: