80 lines
2.9 KiB
Python
80 lines
2.9 KiB
Python
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"""
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Built-in, globally-available admin actions.
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"""
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from django.contrib import messages
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from django.contrib.admin import helpers
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from django.contrib.admin.utils import model_ngettext
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from django.core.exceptions import PermissionDenied
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from django.template.response import TemplateResponse
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from django.utils.translation import gettext as _, gettext_lazy
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def delete_selected(modeladmin, request, queryset):
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"""
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Default action which deletes the selected objects.
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This action first displays a confirmation page which shows all the
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deletable objects, or, if the user has no permission one of the related
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childs (foreignkeys), a "permission denied" message.
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Next, it deletes all selected objects and redirects back to the change list.
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"""
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opts = modeladmin.model._meta
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app_label = opts.app_label
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# Populate deletable_objects, a data structure of all related objects that
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# will also be deleted.
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deletable_objects, model_count, perms_needed, protected = modeladmin.get_deleted_objects(queryset, request)
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# The user has already confirmed the deletion.
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# Do the deletion and return None to display the change list view again.
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if request.POST.get('post') and not protected:
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if perms_needed:
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raise PermissionDenied
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n = queryset.count()
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if n:
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for obj in queryset:
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obj_display = str(obj)
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modeladmin.log_deletion(request, obj, obj_display)
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modeladmin.delete_queryset(request, queryset)
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modeladmin.message_user(request, _("Successfully deleted %(count)d %(items)s.") % {
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"count": n, "items": model_ngettext(modeladmin.opts, n)
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}, messages.SUCCESS)
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# Return None to display the change list page again.
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return None
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objects_name = model_ngettext(queryset)
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if perms_needed or protected:
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title = _("Cannot delete %(name)s") % {"name": objects_name}
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else:
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title = _("Are you sure?")
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context = {
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**modeladmin.admin_site.each_context(request),
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'title': title,
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'objects_name': str(objects_name),
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'deletable_objects': [deletable_objects],
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'model_count': dict(model_count).items(),
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'queryset': queryset,
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'perms_lacking': perms_needed,
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'protected': protected,
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'opts': opts,
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'action_checkbox_name': helpers.ACTION_CHECKBOX_NAME,
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'media': modeladmin.media,
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}
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request.current_app = modeladmin.admin_site.name
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# Display the confirmation page
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return TemplateResponse(request, modeladmin.delete_selected_confirmation_template or [
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"admin/%s/%s/delete_selected_confirmation.html" % (app_label, opts.model_name),
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"admin/%s/delete_selected_confirmation.html" % app_label,
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"admin/delete_selected_confirmation.html"
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], context)
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delete_selected.allowed_permissions = ('delete',)
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delete_selected.short_description = gettext_lazy("Delete selected %(verbose_name_plural)s")
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