(custom_bulk_actions)= # Adding custom bulk actions This document describes how to add custom bulk actions to different listings. ## Registering a custom bulk action ```python from wagtail.admin.views.bulk_action import BulkAction from wagtail import hooks @hooks.register('register_bulk_action') class CustomDeleteBulkAction(BulkAction): display_name = _("Delete") aria_label = _("Delete selected objects") action_type = "delete" template_name = "/path/to/confirm_bulk_delete.html" models = [...] @classmethod def execute_action(cls, objects, **kwargs): for obj in objects: do_something(obj) return num_parent_objects, num_child_objects # return the count of updated objects ``` The attributes are as follows: - `display_name` - The label that will be displayed on the button in the user interface - `aria_label` - The `aria-label` attribute that will be applied to the button in the user interface - `action_type` - A unique identifier for the action (required in the URL for bulk actions) - `template_name` - The path to the confirmation template - `models` - A list of models on which the bulk action can act - `action_priority` (optional) - A number that is used to determine the placement of the button in the list of buttons - `classes` (optional) - A set of CSS class names that will be used on the button in the user interface An example of a confirmation template is as follows: ```html+django {% extends 'wagtailadmin/bulk_actions/confirmation/base.html' %} {% load i18n wagtailadmin_tags %} {% block titletag %}{% blocktranslate trimmed count counter=items|length %}Delete 1 item{% plural %}Delete {{ counter }} items{% endblocktranslate %}{% endblock %} {% block header %} {% trans "Delete" as del_str %} {% include "wagtailadmin/shared/header.html" with title=del_str icon="doc-empty-inverse" %} {% endblock header %} {% block items_with_access %} {% if items %}

{% trans "Are you sure you want to delete these items?" %}

{% endif %} {% endblock items_with_access %} {% block items_with_no_access %} {% blocktranslate trimmed asvar no_access_msg count counter=items_with_no_access|length %}You don't have permission to delete this item{% plural %}You don't have permission to delete these items{% endblocktranslate %} {% include './list_items_with_no_access.html' with items=items_with_no_access no_access_msg=no_access_msg %} {% endblock items_with_no_access %} {% block form_section %} {% if items %} {% trans 'Yes, delete' as action_button_text %} {% trans "No, don't delete" as no_action_button_text %} {% include 'wagtailadmin/bulk_actions/confirmation/form.html' with action_button_class="serious" %} {% else %} {% include 'wagtailadmin/bulk_actions/confirmation/go_back.html' %} {% endif %} {% endblock form_section %} ``` ```html+django {% extends 'wagtailadmin/bulk_actions/confirmation/list_items_with_no_access.html' %} {% load i18n %} {% block per_item %} {% if item.can_edit %} {{ item.item.title }} {% else %} {{ item.item.title }} {% endif %} {% endblock per_item %} ``` The `execute_action` classmethod is the only method that must be overridden for the bulk action to work properly. It takes a list of objects as the only required argument, and a bunch of keyword arguments that can be supplied by overriding the `get_execution_context` method. For example. ```python @classmethod def execute_action(cls, objects, **kwargs): # the kwargs here is the output of the get_execution_context method user = kwargs.get('user', None) num_parent_objects, num_child_objects = 0, 0 # you could run the action per object or run them in bulk using django's bulk update and delete methods for obj in objects: num_child_objects += obj.get_children().count() num_parent_objects += 1 obj.delete(user=user) num_parent_objects += 1 return num_parent_objects, num_child_objects ``` The `get_execution_context` method can be overridden to provide context to the `execute_action` ```python def get_execution_context(self): return { 'user': self.request.user } ``` The `get_context_data` method can be overridden to pass additional context to the confirmation template. ```python def get_context_data(self, **kwargs): context = super().get_context_data(**kwargs) context['new_key'] = some_value return context ``` Thes `check_perm` method can be overridden to check if an object has some permission or not. Objects for which the `check_perm` returns `False` will be available in the context under the key `'items_with_no_access'`. ```python def check_perm(self, obj): return obj.has_perm('some_perm') # returns True or False ``` The success message shown on the admin can be customised by overriding the `get_success_message` method. ```python def get_success_message(self, num_parent_objects, num_child_objects): return _("{} objects, including {} child objects have been updated".format(num_parent_objects, num_child_objects)) ``` ## Adding bulk actions to the page explorer When creating a custom bulk action class for pages, subclass from `wagtail.admin.views.pages.bulk_actions.page_bulk_action.PageBulkAction` instead of `wagtail.admin.views.bulk_action.BulkAction` ### Basic example ```python from wagtail.admin.views.pages.bulk_actions.page_bulk_action import PageBulkAction from wagtail import hooks @hooks.register('register_bulk_action') class CustomPageBulkAction(PageBulkAction): ... ``` ## Adding bulk actions to the Images listing When creating a custom bulk action class for images, subclass from `wagtail.images.views.bulk_actions.image_bulk_action.ImageBulkAction` instead of `wagtail.admin.views.bulk_action.BulkAction` ### Basic example ```python from wagtail.images.views.bulk_actions.image_bulk_action import ImageBulkAction from wagtail import hooks @hooks.register('register_bulk_action') class CustomImageBulkAction(ImageBulkAction): ... ``` ## Adding bulk actions to the documents listing When creating a custom bulk action class for documents, subclass from `wagtail.documents.views.bulk_actions.document_bulk_action.DocumentBulkAction` instead of `wagtail.admin.views.bulk_action.BulkAction` ### Basic example ```python from wagtail.documents.views.bulk_actions.document_bulk_action import DocumentBulkAction from wagtail import hooks @hooks.register('register_bulk_action') class CustomDocumentBulkAction(DocumentBulkAction): ... ``` ## Adding bulk actions to the user listing When creating a custom bulk action class for users, subclass from `wagtail.users.views.bulk_actions.user_bulk_action.UserBulkAction` instead of `wagtail.admin.views.bulk_action.BulkAction` ### Basic example ```python from wagtail.users.views.bulk_actions.user_bulk_action import UserBulkAction from wagtail import hooks @hooks.register('register_bulk_action') class CustomUserBulkAction(UserBulkAction): ... ``` (wagtailsnippets_custom_bulk_actions)= ## Adding bulk actions to the snippets listing When creating a custom bulk action class for snippets, subclass from `wagtail.snippets.bulk_actions.snippet_bulk_action.SnippetBulkAction` instead of `wagtail.admin.views.bulk_action.BulkAction` ### Basic example ```python from wagtail.snippets.bulk_actions.snippet_bulk_action import SnippetBulkAction from wagtail import hooks @hooks.register('register_bulk_action') class CustomSnippetBulkAction(SnippetBulkAction): # ... ``` If you want to apply an action only to certain snippets, override the `models` list in the action class ```python from wagtail.snippets.bulk_actions.snippet_bulk_action import SnippetBulkAction from wagtail import hooks @hooks.register('register_bulk_action') class CustomSnippetBulkAction(SnippetBulkAction): models = [SnippetA, SnippetB] # ... ```