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django url (?P<>) regex - named capture group and backreference
Nearly all modern regular expression engines support numbered capturing groups and numbered backreferences. Long regular expressions with lots of groups and backreferences may be hard to read. They can be particularly difficult to maintain as addi...
django DRF API Views
REST framework provides two wrappers you can use to write API views.
- The @api_view decorator for working with function based views.
- The APIView class for working with class-based views.
These wrappers provide a few bits of functionality su...
django admin reverse url lookup
Add form
Given app is called <app_name> and model in the app is called <model_table> then the following gets the link to the "add" form on the admin page:
url = reverse('admin:<app_name>_<model_table>_add')
django apps in subfolder
Given a sub-directory named "apps" for all django applications, the following steps are used to setup the sub-directory and create apps.
1 create app sub folder - "apps"
mkdir apps
touch apps/__init__.py
2 add app to sub folder:
...
django rename app
Before renaming
Always migrate databases before changing the app name.
manage.py makemigrations
when you see the following message then it is safe to proceed with renaming the app.
No changes detected
Fixed table names
...
django SessionAuthentication
Overview
SessionAuthentication method: This method uses the session cookie (which is set through the normal Django login and logout views) to check out if there’s an authenticated user and get his username. This method works only in the same s...
django tables2 installation
Django-tables2 is Available on pypi and can be installed using pip:
pip install django-tables2
After installing, add 'django_tables2' to INSTALLED_APPS and make sure that 'django.template.context_processors.request' is added to the context_proces...
django create app in subdir
To create a "polls" app in the "apps" sub-directory, do the following first to make the directory (assuming you are at the root of your django project):
mkdir apps/polls
Next, run startapp to create "polls" in under the "app" project di...