Customizing admin views for snippets

Additional customizations to the admin views for each snippet model can be achieved through a custom SnippetViewSet class. The SnippetViewSet is a subclass of ModelViewSet, with snippets-specific properties provided by default. Hence, it supports the same customizations provided by ModelViewSet such as customizing the listing view (e.g. adding custom columns, and filters), creating a custom menu item, and more.

Before proceeding, ensure that you register the snippet model using register_snippet as a function instead of a decorator, as described in Registering snippets.

For demonstration, consider the following Member model and a MemberFilterSet class:

# models.py
from django.db import models
from wagtail.admin.filters import WagtailFilterSet


class Member(models.Model):
    class ShirtSize(models.TextChoices):
        SMALL = "S", "Small"
        MEDIUM = "M", "Medium"
        LARGE = "L", "Large"
        EXTRA_LARGE = "XL", "Extra Large"

    name = models.CharField(max_length=255)
    shirt_size = models.CharField(max_length=5, choices=ShirtSize.choices, default=ShirtSize.MEDIUM)

    def get_shirt_size_display(self):
        return self.ShirtSize(self.shirt_size).label

    get_shirt_size_display.admin_order_field = "shirt_size"
    get_shirt_size_display.short_description = "Size description"


class MemberFilterSet(WagtailFilterSet):
    class Meta:
        model = Member
        fields = ["shirt_size"]

And the following is the snippet’s corresponding SnippetViewSet subclass:

from wagtail.admin.panels import FieldPanel
from wagtail.admin.ui.tables import UpdatedAtColumn
from wagtail.snippets.models import register_snippet
from wagtail.snippets.views.snippets import SnippetViewSet

from myapp.models import Member, MemberFilterSet


class MemberViewSet(SnippetViewSet):
    model = Member
    icon = "user"
    list_display = ["name", "shirt_size", "get_shirt_size_display", UpdatedAtColumn()]
    list_per_page = 50
    copy_view_enabled = False
    inspect_view_enabled = True
    admin_url_namespace = "member_views"
    base_url_path = "internal/member"
    filterset_class = MemberFilterSet
    # alternatively, you can use the following instead of filterset_class
    # list_filter = ["shirt_size"]
    # or
    # list_filter = {"shirt_size": ["exact"], "name": ["icontains"]}

    edit_handler = TabbedInterface([
        ObjectList([FieldPanel("name")], heading="Details"),
        ObjectList([FieldPanel("shirt_size")], heading="Preferences"),
    ])

register_snippet(MemberViewSet)

Icon

You can define an icon attribute on the SnippetViewSet to specify the icon that is used across the admin for this snippet type. The icon needs to be registered in the Wagtail icon library. If icon is not set, the default "snippet" icon is used.

URL namespace and base URL path

The url_namespace property can be overridden to use a custom URL namespace for the URL patterns of the views. If unset, it defaults to wagtailsnippets_{app_label}_{model_name}. Meanwhile, overriding url_prefix allows you to customize the base URL path relative to the Wagtail admin URL. If unset, it defaults to snippets/app_label/model_name.

Similar URL customizations are also possible for the snippet chooser views through chooser_admin_url_namespace, chooser_base_url_path, get_chooser_admin_url_namespace(), and get_chooser_admin_base_path().

Listing view

You can customize the listing view to add custom columns, filters, pagination, etc. via various attributes available on the SnippetViewSet. Refer to the listing view customizations for ModelViewSet for more details.

Additionally, you can customize the base queryset for the listing view by overriding the get_queryset() method.

Copy view

Added in version 6.0.

The copy view is enabled by default and will be accessible by users with the ‘add’ permission on the model. To disable it, set copy_view_enabled to False. Refer to the copy view customizations for ModelViewSet for more details.

Inspect view

The inspect view is disabled by default, as it’s not often useful for most models. To enable it, set inspect_view_enabled to True. Refer to the inspect view customizations for ModelViewSet for more details.

Templates

Template customizations work the same way as for ModelViewSet, except that the template_prefix defaults to wagtailsnippets/snippets/. Refer to the template customizations for ModelViewSet for more details.