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models.py
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models.py
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import warnings
from django.contrib.admin.utils import label_for_field, quote, unquote
from django.contrib.contenttypes.models import ContentType
from django.core.exceptions import (
FieldDoesNotExist,
ImproperlyConfigured,
PermissionDenied,
)
from django.db import models, transaction
from django.db.models import Q
from django.db.models.functions import Cast
from django.http import Http404, HttpResponseRedirect
from django.shortcuts import get_object_or_404, redirect
from django.urls import reverse
from django.utils.functional import cached_property
from django.utils.text import capfirst
from django.utils.translation import gettext as _
from django.utils.translation import gettext_lazy
from django.views.generic import TemplateView
from django.views.generic.edit import (
BaseCreateView,
BaseDeleteView,
BaseUpdateView,
)
from wagtail.actions.unpublish import UnpublishAction
from wagtail.admin import messages
from wagtail.admin.filters import WagtailFilterSet
from wagtail.admin.forms.search import SearchForm
from wagtail.admin.panels import get_edit_handler
from wagtail.admin.ui.components import Component, MediaContainer
from wagtail.admin.ui.fields import display_class_registry
from wagtail.admin.ui.side_panels import StatusSidePanel
from wagtail.admin.ui.tables import (
ButtonsColumnMixin,
Column,
TitleColumn,
UpdatedAtColumn,
)
from wagtail.admin.utils import get_latest_str, get_valid_next_url_from_request
from wagtail.admin.views.mixins import SpreadsheetExportMixin
from wagtail.admin.widgets.button import (
Button,
ButtonWithDropdown,
HeaderButton,
ListingButton,
)
from wagtail.log_actions import log
from wagtail.log_actions import registry as log_registry
from wagtail.models import DraftStateMixin, Locale, ReferenceIndex
from wagtail.models.audit_log import ModelLogEntry
from wagtail.search.backends import get_search_backend
from wagtail.search.index import class_is_indexed
from .base import BaseListingView, WagtailAdminTemplateMixin
from .mixins import BeforeAfterHookMixin, HookResponseMixin, LocaleMixin, PanelMixin
from .permissions import PermissionCheckedMixin
class IndexView(
SpreadsheetExportMixin,
LocaleMixin,
PermissionCheckedMixin,
BaseListingView,
):
model = None
template_name = "wagtailadmin/generic/index.html"
results_template_name = "wagtailadmin/generic/index_results.html"
add_url_name = None
edit_url_name = None
copy_url_name = None
inspect_url_name = None
delete_url_name = None
any_permission_required = ["add", "change", "delete"]
search_fields = None
search_backend_name = "default"
is_searchable = None
search_kwarg = "q"
columns = None # If not explicitly specified, will be derived from list_display
list_display = ["__str__", UpdatedAtColumn()]
list_filter = None
show_other_searches = False
def setup(self, request, *args, **kwargs):
super().setup(request, *args, **kwargs)
if not self.filterset_class:
# Allow filterset_class to be dynamically constructed from list_filter
self.filterset_class = self.get_filterset_class()
self.setup_search()
def setup_search(self):
self.is_searchable = self.get_is_searchable()
self.search_url = self.get_search_url()
self.search_form = self.get_search_form()
self.is_searching = False
self.search_query = None
if self.search_form and self.search_form.is_valid():
self.search_query = self.search_form.cleaned_data[self.search_kwarg]
self.is_searching = bool(self.search_query)
def get_is_searchable(self):
if self.model is None:
return False
if self.is_searchable is None:
return class_is_indexed(self.model) or self.search_fields
return self.is_searchable
def get_search_url(self):
if not self.is_searchable:
return None
return self.index_url_name
def get_search_form(self):
if self.model is None or not self.is_searchable:
return None
if self.is_searchable and self.search_kwarg in self.request.GET:
return SearchForm(self.request.GET)
return SearchForm()
def get_filterset_class(self):
# Allow filterset_class to be dynamically constructed from list_filter.
# If the model is translatable, ensure a ``WagtailFilterSet`` subclass
# is returned anyway (even if list_filter is undefined), so the locale
# filter is always included.
if not self.model or (not self.list_filter and not self.locale):
return None
class Meta:
model = self.model
fields = self.list_filter or []
return type(
f"{self.model.__name__}FilterSet",
(WagtailFilterSet,),
{"Meta": Meta},
)
def _annotate_queryset_updated_at(self, queryset):
# Annotate the objects' updated_at, use _ prefix to avoid name collision
# with an existing database field.
# By default, use the latest log entry's timestamp, but subclasses may
# override this to e.g. use the latest revision's timestamp instead.
log_model = log_registry.get_log_model_for_model(queryset.model)
# If the log model is not a subclass of ModelLogEntry, we don't know how
# to query the logs for the object, so skip the annotation.
if not log_model or not issubclass(log_model, ModelLogEntry):
return queryset
latest_log = (
log_model.objects.filter(
content_type=ContentType.objects.get_for_model(
queryset.model, for_concrete_model=False
),
object_id=Cast(models.OuterRef("pk"), models.CharField()),
)
.order_by("-timestamp", "-pk")
.values("timestamp")[:1]
)
return queryset.annotate(_updated_at=models.Subquery(latest_log))
def order_queryset(self, queryset):
has_updated_at_column = any(
getattr(column, "accessor", None) == "_updated_at"
for column in self.columns
)
if has_updated_at_column:
queryset = self._annotate_queryset_updated_at(queryset)
# Explicitly handle null values for the updated at column to ensure consistency
# across database backends and match the behaviour in page explorer
if self.ordering == "_updated_at":
return queryset.order_by(models.F("_updated_at").asc(nulls_first=True))
elif self.ordering == "-_updated_at":
return queryset.order_by(models.F("_updated_at").desc(nulls_last=True))
else:
queryset = super().order_queryset(queryset)
# Preserve the model-level ordering if specified, but fall back on
# updated_at and PK if not (to ensure pagination is consistent)
if not queryset.ordered:
if has_updated_at_column:
queryset = queryset.order_by(
models.F("_updated_at").desc(nulls_last=True), "-pk"
)
else:
queryset = queryset.order_by("-pk")
return queryset
def get_queryset(self):
queryset = super().get_queryset()
queryset = self.search_queryset(queryset)
return queryset
def search_queryset(self, queryset):
if not self.is_searching:
return queryset
if class_is_indexed(queryset.model) and self.search_backend_name:
search_backend = get_search_backend(self.search_backend_name)
if queryset.model.get_autocomplete_search_fields():
return search_backend.autocomplete(
self.search_query,
queryset,
fields=self.search_fields,
order_by_relevance=(not self.is_explicitly_ordered),
)
else:
# fall back on non-autocompleting search
warnings.warn(
f"{queryset.model} is defined as Indexable but does not specify "
"any AutocompleteFields. Searches within the admin will only "
"respond to complete words.",
category=RuntimeWarning,
)
return search_backend.search(
self.search_query,
queryset,
fields=self.search_fields,
order_by_relevance=(not self.is_explicitly_ordered),
)
query = Q()
for field in self.search_fields or []:
query |= Q(**{field + "__icontains": self.search_query})
return queryset.filter(query)
def _get_title_column(self, field_name, column_class=TitleColumn, **kwargs):
if not issubclass(column_class, ButtonsColumnMixin):
def get_buttons(column, instance, *args, **kwargs):
return self.get_list_buttons(instance)
column_class = type(
column_class.__name__,
(ButtonsColumnMixin, column_class),
{"get_buttons": get_buttons},
)
if not self.model:
return column_class(
"name",
label=gettext_lazy("Name"),
accessor=str,
get_url=self.get_edit_url,
)
return self._get_custom_column(
field_name, column_class, get_url=self.get_edit_url, **kwargs
)
def _get_custom_column(self, field_name, column_class=Column, **kwargs):
label, attr = label_for_field(field_name, self.model, return_attr=True)
sort_key = getattr(attr, "admin_order_field", None)
# attr is None if the field is an actual database field,
# so it's possible to sort by it
if attr is None:
sort_key = field_name
return column_class(
field_name,
label=capfirst(label),
sort_key=sort_key,
**kwargs,
)
@cached_property
def columns(self):
columns = []
for i, field in enumerate(self.list_display):
if isinstance(field, Column):
column = field
elif i == 0:
column = self._get_title_column(field)
else:
column = self._get_custom_column(field)
columns.append(column)
return columns
def get_edit_url(self, instance):
if self.edit_url_name:
return reverse(self.edit_url_name, args=(quote(instance.pk),))
def get_copy_url(self, instance):
if self.copy_url_name:
return reverse(self.copy_url_name, args=(quote(instance.pk),))
def get_inspect_url(self, instance):
if self.inspect_url_name:
return reverse(self.inspect_url_name, args=(quote(instance.pk),))
def get_delete_url(self, instance):
if self.delete_url_name:
return reverse(self.delete_url_name, args=(quote(instance.pk),))
def get_add_url(self):
if self.permission_policy and not self.permission_policy.user_has_permission(
self.request.user, "add"
):
return None
if self.add_url_name:
return self._set_locale_query_param(reverse(self.add_url_name))
@cached_property
def add_url(self):
return self.get_add_url()
def get_page_title(self):
if not self.page_title and self.model:
return capfirst(self.model._meta.verbose_name_plural)
return self.page_title
def get_breadcrumbs_items(self):
if not self.model:
return self.breadcrumbs_items
return self.breadcrumbs_items + [
{"url": "", "label": capfirst(self.model._meta.verbose_name_plural)},
]
@cached_property
def header_buttons(self):
buttons = []
if self.add_url:
buttons.append(
HeaderButton(
self.add_item_label,
url=self.add_url,
icon_name="plus",
attrs={"data-w-link-reflect-keys-value": '["locale"]'},
)
)
return buttons
@cached_property
def header_more_buttons(self):
buttons = []
if self.list_export:
buttons.append(
Button(
_("Download XLSX"),
url=self.xlsx_export_url,
icon_name="download",
priority=90,
attrs={
"data-controller": "w-link",
"data-w-link-preserve-keys-value": '["export"]',
},
)
)
buttons.append(
Button(
_("Download CSV"),
url=self.csv_export_url,
icon_name="download",
priority=100,
attrs={
"data-controller": "w-link",
"data-w-link-preserve-keys-value": '["export"]',
},
)
)
return buttons
def get_list_more_buttons(self, instance):
buttons = []
edit_url = self.get_edit_url(instance)
can_edit = (
not self.permission_policy
or self.permission_policy.user_has_permission(self.request.user, "change")
)
if edit_url and can_edit:
buttons.append(
ListingButton(
_("Edit"),
url=self.get_edit_url(instance),
icon_name="edit",
attrs={
"aria-label": _("Edit '%(title)s'") % {"title": str(instance)}
},
priority=10,
)
)
copy_url = self.get_copy_url(instance)
can_copy = self.permission_policy.user_has_permission(self.request.user, "add")
if copy_url and can_copy:
buttons.append(
ListingButton(
_("Copy"),
url=copy_url,
icon_name="copy",
attrs={
"aria-label": _("Copy '%(title)s'") % {"title": str(instance)}
},
priority=20,
)
)
inspect_url = self.get_inspect_url(instance)
if inspect_url:
buttons.append(
ListingButton(
_("Inspect"),
url=inspect_url,
icon_name="info-circle",
attrs={
"aria-label": _("Inspect '%(title)s'")
% {"title": str(instance)}
},
priority=20,
)
)
delete_url = self.get_delete_url(instance)
can_delete = (
not self.permission_policy
or self.permission_policy.user_has_permission(self.request.user, "delete")
)
if delete_url and can_delete:
buttons.append(
ListingButton(
_("Delete"),
url=delete_url,
icon_name="bin",
attrs={
"aria-label": _("Delete '%(title)s'") % {"title": str(instance)}
},
priority=30,
)
)
return buttons
def get_list_buttons(self, instance):
buttons = self.get_list_more_buttons(instance)
return [
ButtonWithDropdown(
buttons=buttons,
icon_name="dots-horizontal",
attrs={
"aria-label": _("More options for '%(title)s'")
% {"title": str(instance)},
},
)
]
@cached_property
def add_item_label(self):
if self.model:
return capfirst(
_("Add %(model_name)s") % {"model_name": self.model._meta.verbose_name}
)
return _("Add")
def get_context_data(self, *args, **kwargs):
context = super().get_context_data(*args, **kwargs)
context["can_add"] = (
self.permission_policy is None
or self.permission_policy.user_has_permission(self.request.user, "add")
)
if context["can_add"]:
context["add_url"] = context["header_action_url"] = self.add_url
context["header_action_label"] = self.add_item_label
context["is_searchable"] = self.is_searchable
context["search_url"] = self.get_search_url()
context["search_form"] = self.search_form
context["is_searching"] = self.is_searching
context["query_string"] = self.search_query
context["model_opts"] = self.model and self.model._meta
return context
def render_to_response(self, context, **response_kwargs):
if self.is_export:
return self.as_spreadsheet(
context["object_list"], self.request.GET.get("export")
)
return super().render_to_response(context, **response_kwargs)
class CreateView(
LocaleMixin,
PanelMixin,
PermissionCheckedMixin,
BeforeAfterHookMixin,
WagtailAdminTemplateMixin,
BaseCreateView,
):
model = None
form_class = None
index_url_name = None
add_url_name = None
edit_url_name = None
template_name = "wagtailadmin/generic/create.html"
page_title = gettext_lazy("New")
permission_required = "add"
success_message = gettext_lazy("%(model_name)s '%(object)s' created.")
error_message = gettext_lazy(
"The %(model_name)s could not be created due to errors."
)
submit_button_label = gettext_lazy("Create")
actions = ["create"]
def setup(self, request, *args, **kwargs):
super().setup(request, *args, **kwargs)
self.action = self.get_action(request)
def get_action(self, request):
for action in self.get_available_actions():
if request.POST.get(f"action-{action}"):
return action
return "create"
def get_available_actions(self):
return self.actions
def get_page_subtitle(self):
if not self.page_subtitle and self.model:
return capfirst(self.model._meta.verbose_name)
return self.page_subtitle
def get_breadcrumbs_items(self):
if not self.model:
return self.breadcrumbs_items
items = []
if self.index_url_name:
items.append(
{
"url": reverse(self.index_url_name),
"label": capfirst(self.model._meta.verbose_name_plural),
}
)
items.append(
{
"url": "",
"label": _("New: %(model_name)s")
% {"model_name": capfirst(self.model._meta.verbose_name)},
}
)
return self.breadcrumbs_items + items
def get_add_url(self):
if not self.add_url_name:
raise ImproperlyConfigured(
"Subclasses of wagtail.admin.views.generic.models.CreateView must provide an "
"add_url_name attribute or a get_add_url method"
)
return self._set_locale_query_param(reverse(self.add_url_name))
@cached_property
def add_url(self):
return self.get_add_url()
def get_edit_url(self):
if not self.edit_url_name:
raise ImproperlyConfigured(
"Subclasses of wagtail.admin.views.generic.models.CreateView must provide an "
"edit_url_name attribute or a get_edit_url method"
)
return reverse(self.edit_url_name, args=(quote(self.object.pk),))
def get_success_url(self):
if not self.index_url_name:
raise ImproperlyConfigured(
"Subclasses of wagtail.admin.views.generic.models.CreateView must provide an "
"index_url_name attribute or a get_success_url method"
)
return self._set_locale_query_param(reverse(self.index_url_name))
def get_success_message(self, instance):
if self.success_message is None:
return None
return capfirst(
self.success_message
% {
"object": instance,
"model_name": self.model and self.model._meta.verbose_name,
}
)
def get_success_buttons(self):
return [messages.button(self.get_edit_url(), _("Edit"))]
def get_error_message(self):
if self.error_message is None:
return None
return capfirst(
self.error_message
% {"model_name": self.model and self.model._meta.verbose_name}
)
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
self.form = context.get("form")
side_panels = self.get_side_panels()
context["action_url"] = self.add_url
context["submit_button_label"] = self.submit_button_label
context["side_panels"] = side_panels
context["media"] += side_panels.media
return context
def get_side_panels(self):
side_panels = [
StatusSidePanel(
self.form.instance,
self.request,
locale=self.locale,
translations=self.translations,
)
]
return MediaContainer(side_panels)
def get_translations(self):
return [
{
"locale": locale,
"url": self._set_locale_query_param(self.add_url, locale),
}
for locale in Locale.objects.all().exclude(id=self.locale.id)
]
def save_instance(self):
"""
Called after the form is successfully validated - saves the object to the db
and returns the new object. Override this to implement custom save logic.
"""
instance = self.form.save()
log(instance=instance, action="wagtail.create", content_changed=True)
return instance
def save_action(self):
success_message = self.get_success_message(self.object)
success_buttons = self.get_success_buttons()
if success_message is not None:
messages.success(
self.request,
success_message,
buttons=success_buttons,
)
return redirect(self.get_success_url())
def form_valid(self, form):
self.form = form
with transaction.atomic():
self.object = self.save_instance()
response = self.save_action()
hook_response = self.run_after_hook()
if hook_response is not None:
return hook_response
return response
def form_invalid(self, form):
self.form = form
error_message = self.get_error_message()
if error_message is not None:
messages.validation_error(self.request, error_message, form)
return super().form_invalid(form)
class CopyView(CreateView):
def get_object(self, queryset=None):
return get_object_or_404(self.model, pk=self.kwargs["pk"])
def get_form_kwargs(self):
return {**super().get_form_kwargs(), "instance": self.get_object()}
class EditView(
LocaleMixin,
PanelMixin,
PermissionCheckedMixin,
BeforeAfterHookMixin,
WagtailAdminTemplateMixin,
BaseUpdateView,
):
model = None
form_class = None
index_url_name = None
edit_url_name = None
delete_url_name = None
history_url_name = None
usage_url_name = None
page_title = gettext_lazy("Editing")
context_object_name = None
template_name = "wagtailadmin/generic/edit.html"
permission_required = "change"
delete_item_label = gettext_lazy("Delete")
success_message = gettext_lazy("%(model_name)s '%(object)s' updated.")
error_message = gettext_lazy("The %(model_name)s could not be saved due to errors.")
submit_button_label = gettext_lazy("Save")
actions = ["edit"]
def setup(self, request, *args, **kwargs):
super().setup(request, *args, **kwargs)
self.action = self.get_action(request)
def get_action(self, request):
for action in self.get_available_actions():
if request.POST.get(f"action-{action}"):
return action
return "edit"
def get_available_actions(self):
return self.actions
def get_object(self, queryset=None):
if "pk" not in self.kwargs:
self.kwargs["pk"] = self.args[0]
self.kwargs["pk"] = unquote(str(self.kwargs["pk"]))
return super().get_object(queryset)
def get_page_subtitle(self):
return str(self.object)
def get_breadcrumbs_items(self):
if not self.model:
return self.breadcrumbs_items
items = []
if self.index_url_name:
items.append(
{
"url": reverse(self.index_url_name),
"label": capfirst(self.model._meta.verbose_name_plural),
}
)
items.append({"url": "", "label": get_latest_str(self.object)})
return self.breadcrumbs_items + items
def get_side_panels(self):
side_panels = []
usage_url = self.get_usage_url()
history_url = self.get_history_url()
if usage_url or history_url:
side_panels.append(
StatusSidePanel(
self.object,
self.request,
locale=self.locale,
translations=self.translations,
usage_url=usage_url,
history_url=history_url,
last_updated_info=self.get_last_updated_info(),
)
)
return MediaContainer(side_panels)
def get_last_updated_info(self):
return log_registry.get_logs_for_instance(self.object).first()
def get_edit_url(self):
if not self.edit_url_name:
raise ImproperlyConfigured(
"Subclasses of wagtail.admin.views.generic.models.EditView must provide an "
"edit_url_name attribute or a get_edit_url method"
)
return reverse(self.edit_url_name, args=(quote(self.object.pk),))
def get_delete_url(self):
if self.delete_url_name:
return reverse(self.delete_url_name, args=(quote(self.object.pk),))
def get_history_url(self):
if self.history_url_name:
return reverse(self.history_url_name, args=(quote(self.object.pk),))
def get_usage_url(self):
if self.usage_url_name:
return reverse(self.usage_url_name, args=[quote(self.object.pk)])
def get_success_url(self):
if not self.index_url_name:
raise ImproperlyConfigured(
"Subclasses of wagtail.admin.views.generic.models.EditView must provide an "
"index_url_name attribute or a get_success_url method"
)
return reverse(self.index_url_name)
def get_translations(self):
if not self.edit_url_name:
return []
return [
{
"locale": translation.locale,
"url": reverse(self.edit_url_name, args=[quote(translation.pk)]),
}
for translation in self.object.get_translations().select_related("locale")
]
def save_instance(self):
"""
Called after the form is successfully validated - saves the object to the db.
Override this to implement custom save logic.
"""
instance = self.form.save()
self.has_content_changes = self.form.has_changed()
log(
instance=instance,
action="wagtail.edit",
content_changed=self.has_content_changes,
)
return instance
def save_action(self):
success_message = self.get_success_message()
success_buttons = self.get_success_buttons()
if success_message is not None:
messages.success(
self.request,
success_message,
buttons=success_buttons,
)
return redirect(self.get_success_url())
def get_success_message(self):
if self.success_message is None:
return None
return capfirst(
self.success_message
% {
"object": self.object,
"model_name": self.model and self.model._meta.verbose_name,
}
)
def get_success_buttons(self):
return [
messages.button(
reverse(self.edit_url_name, args=(quote(self.object.pk),)), _("Edit")
)
]
def get_error_message(self):
if self.error_message is None:
return None
return capfirst(
self.error_message
% {"model_name": self.model and self.model._meta.verbose_name}
)
def form_valid(self, form):
self.form = form
with transaction.atomic():
self.object = self.save_instance()
response = self.save_action()
hook_response = self.run_after_hook()
if hook_response is not None:
return hook_response
return response
def form_invalid(self, form):
self.form = form
error_message = self.get_error_message()
if error_message is not None:
messages.validation_error(self.request, error_message, form)
return super().form_invalid(form)
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
self.form = context.get("form")
side_panels = self.get_side_panels()
context["action_url"] = self.get_edit_url()
context["history_url"] = self.get_history_url()
context["side_panels"] = side_panels
context["media"] += side_panels.media
context["submit_button_label"] = self.submit_button_label
context["can_delete"] = (
self.permission_policy is None
or self.permission_policy.user_has_permission(self.request.user, "delete")
)
if context["can_delete"]:
context["delete_url"] = self.get_delete_url()
context["delete_item_label"] = self.delete_item_label
return context
class DeleteView(
LocaleMixin,
PanelMixin,
PermissionCheckedMixin,
BeforeAfterHookMixin,
WagtailAdminTemplateMixin,
BaseDeleteView,
):
model = None
index_url_name = None
edit_url_name = None
delete_url_name = None
usage_url_name = None
template_name = "wagtailadmin/generic/confirm_delete.html"
context_object_name = None
permission_required = "delete"
page_title = gettext_lazy("Delete")
success_message = gettext_lazy("%(model_name)s '%(object)s' deleted.")
def setup(self, request, *args, **kwargs):
super().setup(request, *args, **kwargs)
self.object = self.get_object()
# Get this here instead of the template so that we do not iterate through
# the usage and potentially trigger a database query for each item
self.usage_url = self.get_usage_url()
self.usage = self.get_usage()
def get_object(self, queryset=None):
# If the object has already been loaded, return it to avoid another query
if getattr(self, "object", None):
return self.object
if self.pk_url_kwarg not in self.kwargs:
self.kwargs[self.pk_url_kwarg] = self.args[0]
self.kwargs[self.pk_url_kwarg] = unquote(str(self.kwargs[self.pk_url_kwarg]))
return super().get_object(queryset)
def get_usage(self):
if not self.usage_url:
return None
return ReferenceIndex.get_grouped_references_to(self.object)
def get_success_url(self):
next_url = get_valid_next_url_from_request(self.request)
if next_url:
return next_url
if not self.index_url_name:
raise ImproperlyConfigured(
"Subclasses of wagtail.admin.views.generic.models.DeleteView must provide an "
"index_url_name attribute or a get_success_url method"
)
return reverse(self.index_url_name)
def get_page_subtitle(self):
return str(self.object)
def get_breadcrumbs_items(self):
return []
def get_delete_url(self):
if not self.delete_url_name:
raise ImproperlyConfigured(
"Subclasses of wagtail.admin.views.generic.models.DeleteView must provide a "
"delete_url_name attribute or a get_delete_url method"
)
return reverse(self.delete_url_name, args=(quote(self.object.pk),))
def get_usage_url(self):
# Usage URL is optional, allow it to be unset
if self.usage_url_name:
return (
reverse(self.usage_url_name, args=(quote(self.object.pk),))
+ "?describe_on_delete=1"
)
@property
def confirmation_message(self):
return _("Are you sure you want to delete this %(model_name)s?") % {
"model_name": self.object._meta.verbose_name
}
def get_success_message(self):
if self.success_message is None:
return None
return capfirst(
self.success_message
% {
"model_name": capfirst(self.object._meta.verbose_name),
"object": self.object,
}
)
def delete_action(self):
with transaction.atomic():
log(instance=self.object, action="wagtail.delete")
self.object.delete()
def form_valid(self, form):
if self.usage and self.usage.is_protected:
raise PermissionDenied
success_url = self.get_success_url()
self.delete_action()
messages.success(self.request, self.get_success_message())
hook_response = self.run_after_hook()
if hook_response is not None:
return hook_response
return HttpResponseRedirect(success_url)
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context["model_opts"] = self.object._meta