CODEWITHSUNDEEP
djangorequest
YeP
YeP

Reputation: 211

django global variable across web pages?

How to pass a variable between web pages/functions?

For example, let's say when I visit webpage "test3.html", I'd like to get the sum of variables a_test1 and a_test2, which are "global" variables which increased as visiting test1.html and test2.html. test1.html, test2.html and test3.html could be visited multiple times and independently. The following code doesn't work as it is, but it would if I can somehow make a_test1 and a_test2 global variables? Can that be done?

Another option maybe passing these variables by the "request" parameter? Can it be done that way?

urlpatterns = [
    url(r'^test1/$', views.test1),
    url(r'^test2/$', views.test2),
    url(r'^test3/$', views.test3),
]

in views.py:

def test1(request):
    a_test1=1+a_test1
    return render(request,'test1.html',{'a_test1': a_test1})
    #other stuffs

def test2(request):
    a_test2=1+a_test2
    return render(request,'test2.html',{'a_test2': a_test2})
    #other stuffs

def test3(request):
    a_test3=a_test1+a_test2
    return render(request,'test3.html',{'a_test3': a_test3})
    #other stuffs

Upvotes: 1

Views: 3988

Answers (1)

Rodriguez David
Rodriguez David

Reputation: 571

You could use session variables in order to share variables across multiple templates and views! for example: 

def test1(request):
    a_test1=1+a_test1  
    request.session['my_variable'] = a_test1
    return render(request,'test1.html',{'a_test1': a_test1})

With that you can access request.session['my_variable'] everywhere on your site!

https://docs.djangoproject.com/en/1.11/topics/http/sessions/

Upvotes: 4

Related Questions