def save_handler(sender, instance, **kwargs):
"""
The following things are done after creating an object in moderated class:
1. Creates monitor entries for object and its parents.
2. Auto-approves object, its parents & specified related objects if user
has ``moderate`` permission. Otherwise, they are put in pending.
"""
import django_monitor
from django_monitor.models import MonitorEntry
from django.contrib.contenttypes.models import ContentType
# Auto-moderation
user = get_current_user()
opts = instance.__class__._meta
mod_perm = '%s.moderate_%s' % (opts.app_label.lower(),
opts.object_name.lower())
if user and user.has_perm(mod_perm):
status = APPROVED_STATUS
else:
status = PENDING_STATUS
# Create corresponding monitor entry
if kwargs.get('created', None):
me = MonitorEntry.objects.create(status=status,
content_object=instance,
timestamp=datetime.now())
me.moderate(status, user)
# Create one monitor_entry per moderated parent.
monitored_parents = filter(
lambda x: django_monitor.model_from_queue(x),
instance._meta.parents.keys())
for parent in monitored_parents:
parent_ct = ContentType.objects.get_for_model(parent)
parent_pk_field = instance._meta.get_ancestor_link(parent)
parent_pk = getattr(instance, parent_pk_field.attname)
try:
me = MonitorEntry.objects.get(content_type=parent_ct,
object_id=parent_pk)
except MonitorEntry.DoesNotExist:
me = MonitorEntry(
content_type=parent_ct,
object_id=parent_pk,
)
me.moderate(status, user)
# Moderate related objects too...
model = django_monitor.model_from_queue(instance.__class__)
if model:
for rel_name in model['rel_fields']:
rel_obj = getattr(instance, rel_name, None)
if rel_obj:
moderate_rel_objects(rel_obj, status, user)
def moderate_parents(self, obj, user, status):
"""Create one monitor_entry per moderated parent"""
monitored_parents = filter(lambda x: model_from_queue(x),
obj._meta.parents.keys())
for parent in monitored_parents:
parent_ct = ContentType.objects.get_for_model(parent)
parent_pk_field = obj._meta.get_ancestor_link(parent)
parent_pk = getattr(obj, parent_pk_field.attname)
try:
me = MonitorEntry.objects.get(content_type=parent_ct,
object_id=parent_pk)
except MonitorEntry.DoesNotExist:
me = MonitorEntry(
content_type=parent_ct,
object_id=parent_pk,
)
me.moderate(status, user)