/Python/Created by and updated by in django

Created by and updated by in django

"""Add user created_by and modified_by foreign key refs to any model automatically.
   Almost entirely taken from https://github.com/Atomidata/django-audit-log/blob/master/audit_log/middleware.py"""
from django.db.models import signals
from django.utils.functional import curry

class WhodidMiddleware(object):
    def process_request(self, request):
        if not request.method in ('GET', 'HEAD', 'OPTIONS', 'TRACE'):
            if hasattr(request, 'user') and request.user.is_authenticated():
                user = request.user
            else:
                user = None

            mark_whodid = curry(self.mark_whodid, user)
            signals.pre_save.connect(mark_whodid,  dispatch_uid = (self.__class__, request,), weak = False)

    def process_response(self, request, response):
        signals.pre_save.disconnect(dispatch_uid =  (self.__class__, request,))
        return response

    def mark_whodid(self, user, sender, instance, **kwargs):
        if 'created_by' in instance._meta.fields and not instance.created_by:
            instance.created_by = user
        if 'modified_by' in instance._meta.fields:
            instance.modified_by = user

Source: stackoverflow.com

Similar codes

2 votes341 views1 answer
What is a cube minus b cube
Python
0 vote358 views1 answer
ModuleNotFoundError: No module named 'rest_framework_social_oauth2'
Python
1 vote416 views1 answer
Getting multiple selected value django
Python Django
0 vote312 views2 answers
Loop through groupby pandas
Python
0 vote310 views1 answer
Comment prendre la valeur absolue d'un nombre python
Python
10 votes371 views1 answer
Python game engine
Python
0 vote303 views1 answer
When to use finally python
Python
2 votes341 views1 answer
Absolute value columns pandas
Python
6 votes313 views2 answers
Python print version python
Python
1 vote323 views1 answer
Python random hex color
Python