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244 lines
8.0 KiB
ReStructuredText
244 lines
8.0 KiB
ReStructuredText
.. _custom_bulk_actions:
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Adding custom bulk actions
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==========================================
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This document describes how to add custom bulk actions to different listings.
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Registering a custom bulk action
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--------------------------------
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.. code-block:: python
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from wagtail.admin.views.bulk_action import BulkAction
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from wagtail import hooks
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@hooks.register('register_bulk_action')
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class CustomDeleteBulkAction(BulkAction):
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display_name = _("Delete")
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aria_label = _("Delete selected objects")
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action_type = "delete"
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template_name = "/path/to/confirm_bulk_delete.html"
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models = [...]
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@classmethod
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def execute_action(cls, objects, **kwargs):
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for obj in objects:
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do_something(obj)
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return num_parent_objects, num_child_objects # return the count of updated objects
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The attributes are as follows:
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- ``display_name`` - The label that will be displayed on the button in the user interface
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- ``aria_label`` - The ``aria-label`` attribute that will be applied to the button in the user interface
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- ``action_type`` - A unique identifier for the action. Will be required in the url for bulk actions
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- ``template_name`` - The path to the confirmation template
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- ``models`` - A list of models on which the bulk action can act
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- ``action_priority`` (optional) - A number that is used to determine the placement of the button in the list of buttons
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- ``classes`` (optional) - A set of CSS classnames that will be used on the button in the user interface
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An example for a confirmation template is as follows:
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.. code-block:: django
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<!-- /path/to/confirm_bulk_delete.html -->
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{% extends 'wagtailadmin/bulk_actions/confirmation/base.html' %}
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{% load i18n wagtailadmin_tags %}
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{% block titletag %}{% blocktrans trimmed count counter=items|length %}Delete 1 item{% plural %}Delete {{ counter }} items{% endblocktrans %}{% endblock %}
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{% block header %}
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{% trans "Delete" as del_str %}
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{% include "wagtailadmin/shared/header.html" with title=del_str icon="doc-empty-inverse" %}
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{% endblock header %}
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{% block items_with_access %}
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{% if items %}
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<p>{% trans "Are you sure you want to delete these items?" %}</p>
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<ul>
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{% for item in items %}
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<li>
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<a href="" target="_blank" rel="noreferrer">{{ item.item.title }}</a>
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</li>
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{% endfor %}
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</ul>
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{% endif %}
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{% endblock items_with_access %}
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{% block items_with_no_access %}
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{% blocktrans 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{% endblocktrans %}
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{% include './list_items_with_no_access.html' with items=items_with_no_access no_access_msg=no_access_msg %}
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{% endblock items_with_no_access %}
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{% block form_section %}
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{% if items %}
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{% trans 'Yes, delete' as action_button_text %}
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{% trans "No, don't delete" as no_action_button_text %}
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{% include 'wagtailadmin/bulk_actions/confirmation/form.html' with action_button_class="serious" %}
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{% else %}
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{% include 'wagtailadmin/bulk_actions/confirmation/go_back.html' %}
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{% endif %}
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{% endblock form_section %}
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.. code-block:: django
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<!-- ./list_items_with_no_access.html -->
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{% extends 'wagtailadmin/bulk_actions/confirmation/list_items_with_no_access.html' %}
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{% load i18n %}
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{% block per_item %}
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{% if item.can_edit %}
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<a href="{% url 'wagtailadmin_pages:edit' item.item.id %}" target="_blank" rel="noreferrer">{{ item.item.title }}</a>
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{% else %}
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{{ item.item.title }}
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{% endif %}
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{% endblock per_item %}
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The ``execute_action`` classmethod is the only method that must be overridden for the bulk action to work properly. It
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takes a list of objects as the only required argument, and a bunch of keyword arguments that can be supplied by overriding
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the ``get_execution_context`` method. For example.
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.. code-block:: python
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@classmethod
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def execute_action(cls, objects, **kwargs):
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# the kwargs here is the output of the get_execution_context method
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user = kwargs.get('user', None)
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num_parent_objects, num_child_objects = 0, 0
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# you could run the action per object or run them in bulk using django's bulk update and delete methods
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for obj in objects:
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num_child_objects += obj.get_children().count()
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num_parent_objects += 1
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obj.delete(user=user)
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num_parent_objects += 1
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return num_parent_objects, num_child_objects
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The ``get_execution_context`` method can be overridden to provide context to the ``execute_action``
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.. code-block:: python
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def get_execution_context(self):
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return {
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'user': self.request.user
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}
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The ``get_context_data`` method can be overridden to pass additional context to the confirmation template.
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.. code-block:: python
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context['new_key'] = some_value
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return context
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The ``check_perm`` method can be overridden to check if an object has some permission or not. objects for which the ``check_perm``
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returns ``False`` will be available in the context under the key ``'items_with_no_access'``.
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.. code-block:: python
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def check_perm(self, obj):
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return obj.has_perm('some_perm') # returns True or False
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The success message shown on the admin can be customised by overriding the ``get_success_message`` method.
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.. code-block:: python
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def get_success_message(self, num_parent_objects, num_child_objects):
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return _("{} objects, including {} child objects have been updated".format(num_parent_objects, num_child_objects))
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Adding bulk actions to the page explorer
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----------------------------------------
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When creating a custom bulk action class for pages, subclass from ``wagtail.admin.views.pages.bulk_actions.page_bulk_action.PageBulkAction``
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instead of ``wagtail.admin.views.bulk_action.BulkAction``
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Basic example
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~~~~~~~~~~~~~
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.. code-block:: python
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from wagtail.admin.views.pages.bulk_actions.page_bulk_action import PageBulkAction
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from wagtail import hooks
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@hooks.register('register_bulk_action')
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class CustomPageBulkAction(PageBulkAction):
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...
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Adding bulk actions to the Images listing
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-----------------------------------------
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When creating a custom bulk action class for images, subclass from ``wagtail.images.views.bulk_actions.image_bulk_action.ImageBulkAction``
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instead of ``wagtail.admin.views.bulk_action.BulkAction``
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Basic example
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~~~~~~~~~~~~~
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.. code-block:: python
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from wagtail.images.views.bulk_actions.image_bulk_action import ImageBulkAction
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from wagtail import hooks
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@hooks.register('register_bulk_action')
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class CustomImageBulkAction(ImageBulkAction):
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...
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Adding bulk actions to the documents listing
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--------------------------------------------
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When creating a custom bulk action class for documents, subclass from ``wagtail.documents.views.bulk_actions.document_bulk_action.DocumentBulkAction``
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instead of ``wagtail.admin.views.bulk_action.BulkAction``
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Basic example
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~~~~~~~~~~~~~
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.. code-block:: python
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from wagtail.documents.views.bulk_actions.document_bulk_action import DocumentBulkAction
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from wagtail import hooks
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@hooks.register('register_bulk_action')
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class CustomDocumentBulkAction(DocumentBulkAction):
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...
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Adding bulk actions to the user listing
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---------------------------------------
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When creating a custom bulk action class for users, subclass from ``wagtail.users.views.bulk_actions.user_bulk_action.UserBulkAction``
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instead of ``wagtail.admin.views.bulk_action.BulkAction``
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Basic example
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~~~~~~~~~~~~~
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.. code-block:: python
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from wagtail.users.views.bulk_actions.user_bulk_action import UserBulkAction
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from wagtail import hooks
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@hooks.register('register_bulk_action')
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class CustomUserBulkAction(UserBulkAction):
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...
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