Hi Fatjon,
I wonder how much you can try finding that out on your own by just
grepping for the names of the common Gang of Four [1] - design patterns
in the django source code. I just tried Observer, Factory and find
examples in the code, which sound like the developer really followed the
intention of that pattern, when they named the function / class, which
is good. Another example is Decorator:
> git grep decorator
gives many results, among those the file
django/utils/functional.py
There are the lines of code
def keep_lazy(*resultclasses):
"""
A decorator that allows a function to be called with one or more lazy
arguments. If none of the args are lazy, the function is evaluated
immediately, otherwise a __proxy__ is returned that will evaluate the
function when needed.
"""
if not resultclasses:
raise TypeError("You must pass at least one argument to
keep_lazy().")
def decorator(func):
..
return decorator
and that to me really looks exactly what the purpose of a decorator is.
Antje
[1] https://en.wikipedia.org/wiki/Gang_of_Four
On 11/17/19 3:40 AM, Fatjon Gërra wrote:
> Hi guys, can anyone suggest me some resources book/video/article where
> I can learn more about Design Patterns that the Django Team used in
> writing Django as a framework? For example, here
> <https://docs.djangoproject.com/en/2.2/misc/design-philosophies/> the
> Active Record pattern is mentioned. I am looking for the other ones. I
> want to dive into Django's source code and learn about Design Patterns
> at the same time. Thanks for the help!
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