Django - how to go back to previous view with parameters - django

Question

I am relatively new with Django, this must be a common problem.
I have created a view to show a form to input date (using widget that returns separate fields):
when date is inserted, I call a function userPage(request, my_date)
that filters, processes and renders a page (user.html) showing a list of items.
def datePage(request):
user=request.user
context = {}
context['form'] = UserDateForm()
if request.GET:
date_yr = request.GET['food_date_year']
date_mo = request.GET['food_date_month']
date_day = request.GET['food_date_day']
my_date_string = date_yr+'-'+date_mo+'-'+date_day
my_date = datetime.strptime(my_date_string, "%Y-%m-%d").date()
return userPage(request,my_date)
return render(request, "date.html", context)
def userPage(request, my_date):
user=request.user
# process context using user, my_date
context={...:..., 'my_date': my_date}
return render(request,'user.html',context)
In user.html I include a URL to add an item:
</div>
<form action="{% url 'My_ItemCreate' %}" method="POST">
{%csrf_token%}
<button type="submit" class="btn btn-success">
<span class="glyphicon glyphicon-plus"></span>
</button>
</form>
</div>
'My_ItemCreate' points to a django.views.generic CreateView that creates an item.:
path('MyItemCreate/',views.My_ItemCreate.as_view(),name='My_ItemCreate'),
class My_ItemCreate(CreateView):
model = MyItem
fields = ...
After creating the item in the CreateView, how do I go back to the user page
after I inserted the date? I have lost the date in the new URL.
If I use URL resolver to go to userPage, how do I pass a date in the format?
It would be nice that I am able to pass initial values in the CreateView, and
make some fields read-only, how do I modify/override CreateView ?
Many Thanks for your help!

Answer 1

I have found an answer to my problem: using request.session
to store a value and retrieving in other views, it works fine.
I am still curious to know if there are experts who
would provide a more elegant solution, and if someone
could be so kind to answer point 2) regarding CreateView read_only fields
Thanks
D