Some of us might think that checking whether a request is XHR or not every time kills code readability. To solve this, we have an easy solution. We can just write a simple decorator that will handle this redundant code for us.
In this recipe, we will be writing a decorator. For some of the beginners in Python, this might seem like alien territory. In this case, read http://legacy.python.org/dev/peps/pep-0318/ for a better understanding of decorators.
The following is the decorator method that we have written for this recipe:
from functools import wraps
def template_or_json(template=None):
""""Return a dict from your view and this will either
pass it to a template or render json. Use like:
@template_or_json('template.html')
"""
def decorated(f):
@wraps(f)
def decorated_fn(*args, **kwargs):
ctx = f(*args, **kwargs)
if request.is_xhr or not template:
...