Re: retain form data when a user session expires while filling a form

[Avraham Serour]

You may also always save to cookie before submitting the form and clear it
on the thank you page

On Thu, 12 Apr 2018, 14:20 Vijay Shanker,  wrote:

> I have to code this scenario:
>
> Some user comes to fill a form and while user is at it, session expires;
> User tries to submit form, as session has expired it will take him to login
> page after which he is rediredted to form page with a prefilled form with
> data he filled previously.
>
> my propsed solution: on form submit, check if user session is expired with
> an ajax call, if yes, drop a cookie with values of filled form, user comes
> back to same form, prefill the form from cookie value.
>
> how far I got: not much; I used ajax call to check session expiry with a
> backend call to this function:
>
> def check_valid_session(request):
> session_expiry_date = request.session.get_expiry_date()
> now = datetime.now()
> seconds_left = (session_expiry_date - now).total_seconds()
> if seconds_left <= 0:
> return JsonResponse({'session_expired': True, 'seconds_left': 
> seconds_left })
> else:
> return JsonResponse({'session_expired':False, 'seconds_left': 
> seconds_left})
>
> in my settings I have:
>
> SESSION_COOKIE_NAME = "sso-sessionid"
> SESSION_COOKIE_HTTPONLY = False
> SESSION_COOKIE_AGE = 10
> SESSION_COOKIE_DOMAIN = '.mydomain.com'
> SESSION_COOKIE_SECURE = True
> SESSION_EXPIRE_AT_BROWSER_CLOSE = True
>
> but in response, I always get seconds_left as something close to 9.999.
> and session_expiry_date keeps increasing itself by 10 seconds each time i
> hit submit and call the backend code above. How to get correct session
> expire time?
>
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retain form data when a user session expires while filling a form

[Vijay Shanker]

I have to code this scenario:

Some user comes to fill a form and while user is at it, session expires; 
User tries to submit form, as session has expired it will take him to login 
page after which he is rediredted to form page with a prefilled form with 
data he filled previously.

my propsed solution: on form submit, check if user session is expired with 
an ajax call, if yes, drop a cookie with values of filled form, user comes 
back to same form, prefill the form from cookie value.

how far I got: not much; I used ajax call to check session expiry with a 
backend call to this function:

def check_valid_session(request):
session_expiry_date = request.session.get_expiry_date()
now = datetime.now()
seconds_left = (session_expiry_date - now).total_seconds()
if seconds_left <= 0:
return JsonResponse({'session_expired': True, 'seconds_left': 
seconds_left })
else:
return JsonResponse({'session_expired':False, 'seconds_left': 
seconds_left})

in my settings I have:

SESSION_COOKIE_NAME = "sso-sessionid"
SESSION_COOKIE_HTTPONLY = False
SESSION_COOKIE_AGE = 10 
SESSION_COOKIE_DOMAIN = '.mydomain.com'
SESSION_COOKIE_SECURE = True
SESSION_EXPIRE_AT_BROWSER_CLOSE = True

but in response, I always get seconds_left as something close to 9.999. and 
session_expiry_date keeps increasing itself by 10 seconds each time i hit 
submit and call the backend code above. How to get correct session expire 
time?

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Visit this group at https://groups.google.com/group/django-users.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/django-users/e623b707-2014-4511-91f4-7a00420fe196%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.