86 lines
3.4 KiB
Python
86 lines
3.4 KiB
Python
"""
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Built-in, globally-available admin actions.
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"""
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from django import template
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from django.core.exceptions import PermissionDenied
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from django.contrib.admin import helpers
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from django.contrib.admin.util import get_deleted_objects, model_ngettext
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from django.shortcuts import render_to_response
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from django.utils.encoding import force_unicode
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from django.utils.html import escape
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from django.utils.safestring import mark_safe
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from django.utils.text import capfirst
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from django.utils.translation import ugettext_lazy, ugettext as _
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try:
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set
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except NameError:
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from sets import Set as set # Python 2.3 fallback
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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 whichs shows all the
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deleteable 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 delets 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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# Check that the user has delete permission for the actual model
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if not modeladmin.has_delete_permission(request):
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raise PermissionDenied
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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 must be a list if we want to use '|unordered_list' in the template
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deletable_objects = []
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perms_needed = set()
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i = 0
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for obj in queryset:
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deletable_objects.append([mark_safe(u'%s: <a href="%s/">%s</a>' % (escape(force_unicode(capfirst(opts.verbose_name))), obj.pk, escape(obj))), []])
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get_deleted_objects(deletable_objects[i], perms_needed, request.user, obj, opts, 1, modeladmin.admin_site, levels_to_root=2)
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i=i+1
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# The user has already confirmed the deletion.
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# Do the deletion and return a None to display the change list view again.
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if request.POST.get('post'):
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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 = force_unicode(obj)
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modeladmin.log_deletion(request, obj, obj_display)
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queryset.delete()
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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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})
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# Return None to display the change list page again.
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return None
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context = {
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"title": _("Are you sure?"),
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"object_name": force_unicode(opts.verbose_name),
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"deletable_objects": deletable_objects,
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'queryset': queryset,
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"perms_lacking": perms_needed,
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"opts": opts,
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"root_path": modeladmin.admin_site.root_path,
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"app_label": app_label,
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'action_checkbox_name': helpers.ACTION_CHECKBOX_NAME,
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}
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# Display the confirmation page
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return render_to_response(modeladmin.delete_confirmation_template or [
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"admin/%s/%s/delete_selected_confirmation.html" % (app_label, opts.object_name.lower()),
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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, context_instance=template.RequestContext(request))
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delete_selected.short_description = ugettext_lazy("Delete selected %(verbose_name_plural)s")
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