"""
Built-in, globally-available admin actions.
"""
from django import template
from django.core.exceptions import PermissionDenied
from django.contrib.admin import helpers
from django.contrib.admin.util import get_deleted_objects,model_ngettext
from django.shortcuts import render_to_response
from django.utils.encoding import force_unicode
from django.utils.html import escape
from django.utils.safestring import mark_safe
from django.utils.text import capfirst
from django.utils.translation import ugettext_lazy,ugettext
try:
set
except NameError:
from sets import Set
def delete_selected(modeladmin, request, queryset):
"""
Default action which deletes the selected objects.
This action first displays a confirmation page whichs shows all the
deleteable objects, or, if the user has no permission one of the related
childs (foreignkeys), a "permission denied" message.
Next, it delets all selected objects and redirects back to the change list.
"""
opts = modeladmin.model._meta
app_label = opts.app_label
# Check that the user has delete permission for the actual model
if not modeladmin.has_delete_permission(request):
raise PermissionDenied
# Populate deletable_objects, a data structure of all related objects that
# will also be deleted.
deletable_objects, perms_needed = get_deleted_objects(queryset, opts, request.user, modeladmin.admin_site, levels_to_root=2)
# The user has already confirmed the deletion.
# Do the deletion and return a None to display the change list view again.
if request.POST.get('post'):
if perms_needed:
raise PermissionDenied
n = queryset.count()
if n:
for obj in queryset:
obj_display = force_unicode(obj)
modeladmin.log_deletion(request, obj, obj_display)
queryset.delete()
modeladmin.message_user(request, _("Successfully deleted %(count)d %(items)s.") % {
"count": n, "items": model_ngettext(modeladmin.opts, n)
})
# Return None to display the change list page again.
return None
context = {
"title": _("Are you sure?"),
"object_name": force_unicode(opts.verbose_name),
"deletable_objects": [deletable_objects],
'queryset': queryset,
"perms_lacking": perms_needed,
"opts": opts,
"root_path": modeladmin.admin_site.root_path,
"app_label": app_label,
'action_checkbox_name': helpers.ACTION_CHECKBOX_NAME,
}
# Display the confirmation page
return render_to_response(modeladmin.delete_selected_confirmation_template or [
"admin/%s/%s/delete_selected_confirmation.html" % (app_label, opts.object_name.lower()),
"admin/%s/delete_selected_confirmation.html" % app_label,
"admin/delete_selected_confirmation.html"
], context, context_instance=template.RequestContext(request))
delete_selected.short_description = ugettext_lazy("Delete selected %(verbose_name_plural)s")
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