def has_delete_permission(self, request, obj=None):
manager = AccessManager(self.model)
if manager.check_deleteable(self.model, request) is False:
return False
if obj:
return bool(manager.apply_deleteable(obj.__class__.objects.filter(id=obj.id), request))
return True
def format_callback(obj):
has_admin = obj.__class__ in self.admin_site._registry
opts = obj._meta
no_edit_link = '%s: %s' % (capfirst(opts.verbose_name),
force_text(obj))
# Trying to get admin change URL
admin_url = None
try:
admin_url = reverse('%s:%s_%s_change'
% (self.admin_site.name,
opts.app_label,
opts.model_name),
None, (quote(obj._get_pk_val()),))
except NoReverseMatch:
# Change url doesn't exist -- don't display link to edit
pass
# Collecting forbidden subobjects, compatible with Django or forced by the option
if STRONG_DELETION_CONTROL or has_admin:
if not obj.__class__._meta.auto_created:
manager = AccessManager(obj.__class__)
# filter out forbidden items
if manager.check_deleteable(obj.__class__, request) is False:
model_perms_needed.add(opts.verbose_name)
if not manager.apply_deleteable(obj.__class__._default_manager.filter(pk=obj.pk), request):
object_perms_needed.add(obj)
if admin_url:
# Display a link to the admin page.
return format_html('{}: <a href="{}">{}</a>',
capfirst(opts.verbose_name),
admin_url,
obj)
else:
# Don't display link to edit, because it either has no
# admin or is edited inline.
return no_edit_link
