url () to path()

[Kayode Oladipo]

Hi there again! Beginner here using Django 2.0.
I'm following a tutorial (coupled with the official doc for compatibility) and I discovered that <2.0 versions use RegEx with the url but 2.0> uses the simplified path() function.
My question is how do I find the right corresponding path() function to a url (),
A cheat sheet would be wonderful.

Cheers!

[Mike Morris]

I'm not sure I understand the question, but here's my input:

• You can use either url() or path() and achieve the same thing
• However, I assume that the older url() is being deprecated, so you should use the newer path() if your version supports it
• My cheat sheet is often the examples in the very good official tutorial.
• I generally just go to the latest and then twiddle the version in the URL to compare:
• CURRENT - with new path(): https://docs.djangoproject.com/en/2.0/topics/http/urls/
• 1.11 - with older url():           https://docs.djangoproject.com/en/1.11/topics/http/urls/ (note I just changed "2.0" to "1.11"...)
• https://www.google.com/search?q=django+2+cheat+sheet
  
• Better yet, make the cheattsheet of your dreams, put it on the web, and maybe someday you'll be a famous Django guru!!!
  

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[Daniel Hepper]

Hi!

First of all, you still can use regular expressions to define URLs by using django.urls.re_path. You could even the old django.conf.urls.url, which is still available, so you don't have to change any existing code.

What you are asking for is the corresponding path converter to a regular expression.

Django comes with five predefined path converters, which just use a regular expression under the hood:

int    [0-9]+
str    [^/]+
path   .+
slug   [-a-zA-Z0-9_]+
uuid   [0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}

https://docs.djangoproject.com/en/2.0/topics/http/urls/#path-converters

https://github.com/django/django/blob/stable/2.0.x/django/urls/converters.py

Note that those also do type conversion when appropriate, the int path converter passes an int to your view, the uuid converter a uuid.

If those don't fit your needs, you can also build your own:

https://docs.djangoproject.com/en/2.0/topics/http/urls/#registering-custom-path-converters

Or, as mentioned at the beginning, just keep using regular expressions:

https://docs.djangoproject.com/en/2.0/topics/http/urls/#using-regular-expressions

I've just put together a small article that sums up everything: https://consideratecode.com/2018/05/02/django-2-0-url-to-path-cheatsheet/

Hope that helps,

Daniel

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[Kayode Oladipo]

Thanks a Lot! That was very helpful

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