/Python/Django/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

0 vote150 views2 answers
Django get all models
Python Django
10 votes152 views1 answer
Add static file in django
Python Django
0 vote168 views1 answer
Import sqlite to mysql django
Python Django
1 vote225 views4 answers
Django query or condition for query parameters
Python Django
0 vote182 views2 answers
Fetching data from multiple tables using related name in django
Python Django
0 vote151 views1 answer
Django.db.utils.ProgrammingError: can't adapt type 'dict_keys'
Python Django
2 votes159 views1 answer
Django register models
Python Django
0 vote146 views1 answer
AttributeError: module 'django.db.models' has no attribute 'ArrayField'
Python Django
1 vote166 views1 answer
Message tags in django
Python Django
3 votes167 views2 answers
Update_or_create django
Python Django