Year: {{year}}Any value within double curly braces in a template is treated as a variable. Everything else is treated literally.
Modify myapp/views.py to look like this:
from django.shortcuts import render
from django.http import HttpResponse
def index(request):
return HttpResponse("Hello, world!")
def year(request, year):
data = {'year':year}
return render(request, 'myapp/year.html', data)
The render function—a Django “shortcut” (a combination of multiple built-ins for convenience)—takes the existing request object, looks for the template myapp/year.html in the list of available template locations, and passes the dictionary data to it as context for the template. The template uses the dictionary as a namespace for variables used in the template. In this case, the variable {{year}} in the template is replaced with the value for the key year in the dictionary data (that is, data["year"]).
The amount of processing you can do on data within Django templates is intentionally limited. Django’s philosophy is to enforce the separation of presentation and business logic whenever possible. Thus, you can loop through an iterable object, and you can perform if/then/else tests, but modifying the data within a template is discouraged.
