将日期传递给网址标签Django

Question

I am trying to pass a date to a URL Tag. Here is my url regex:

url(r'^fund_details/?startDate=(?P<date_index>\d{2}-\d{2}-\d{4})/?offset(?P<date_offset>\d{2}-\d{2}-\d{4})/

and my url tag:

{% url 'fund_monitor:fund_details' start_date offset %}

But i get this error

ValueError: invalid literal for int() with base 10: '08-18-2017'

Note my start date is '08-18-2017' . I think it is because my regex is looking for a number rather than a string. However, I need the - in between the numbers. How can I achieve this?

Answer 1

A cleaner way of achieving the intended result would be specifying the URL structure up until the query string, and implement the logic in a view function or class. Practically speaking, you should have the following:

urls.py (or whatever filename containing the URL bindings):

url(r'^fund_details/$', YourViewClass.as_view(), name="url_alias")

(Note the $ symbol in the end - as far as my experience is concerned, that should work even if your full URL has a query string in the end.)

views.py or other arbitrarily-named file:

def handle_request(request):
    start_date = request.GET["start_date"]
    date_offset = request.GET["date_offset"]

    # Do your own validation with the acquired input
    # Compute the output with the just validated data

Constructing a query string as ?startDate=01-01-2017&offset=01-01-2016 is easily (or rather, automatically) done using a HTML form.