297 lines
8.7 KiB
Python
297 lines
8.7 KiB
Python
from datetime import timedelta
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from typing import Any, Optional, Type
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from django.contrib.humanize.templatetags.humanize import NaturalTimeFormatter
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from django.contrib.syndication.views import Feed
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from django.core.paginator import EmptyPage, Paginator
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from django.core.paginator import Page as PaginatorPage
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from django.db import models
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from django.http.request import HttpRequest
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from django.http.response import Http404, HttpResponse, HttpResponseBadRequest
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from django.utils import timezone
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from django.utils.decorators import method_decorator
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from django.utils.functional import cached_property, classproperty
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from django.utils.text import slugify
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from django.views.decorators.cache import cache_page
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from wagtail.admin.panels import FieldPanel, MultiFieldPanel
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from wagtail.contrib.routable_page.models import RoutablePageMixin, route
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from wagtail.contrib.settings.models import BaseGenericSetting, register_setting
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from wagtail.fields import RichTextField, StreamField
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from wagtail.images import get_image_model_string
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from wagtail.images.views.serve import generate_image_url
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from wagtail.models import Page, PageQuerySet
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from wagtail.search import index
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from wagtail.snippets.blocks import SnippetChooserBlock
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from wagtail.snippets.models import register_snippet
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from wagtailmetadata.models import MetadataMixin
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from website.contrib.unsplash.models import SIZES as UNSPLASH_SIZES
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from website.contrib.unsplash.widgets import UnsplashPhotoChooser
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from .serializers import PaginationSerializer
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from .streamfield import add_heading_anchors, get_blocks, get_content_html
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from .utils import (
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TocEntry,
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count_words,
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extract_text,
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get_site_title,
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get_table_of_contents,
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truncate_string,
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)
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class BasePage(Page):
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show_in_menus_default = True
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class Meta:
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abstract = True
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@classproperty
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def body_class(cls) -> str: # noqa: N805
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return "page-" + slugify(cls.__name__)
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def get_parent_pages(self) -> PageQuerySet:
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"""
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Shim over the fact everything is in 1 tree
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"""
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return self.get_ancestors().exclude(depth__lte=2)
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@cached_property
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def html_title(self) -> str:
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return self.seo_title or self.title
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@cached_property
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def html_title_tag(self) -> str:
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return f"{self.html_title} :: {get_site_title()}"
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@cached_property
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def hero_title(self) -> str:
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return self.html_title
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class BaseContentPage(BasePage, MetadataMixin):
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subtitle = RichTextField(blank=True, editor="plain")
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hero_image = models.ForeignKey(
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get_image_model_string(), null=True, blank=True, on_delete=models.SET_NULL
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)
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hero_unsplash_photo = models.ForeignKey(
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"unsplash.UnsplashPhoto", null=True, blank=True, on_delete=models.SET_NULL
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)
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body = StreamField(get_blocks(), blank=True, use_json_field=True)
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content_panels = BasePage.content_panels + [
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FieldPanel("subtitle"),
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MultiFieldPanel(
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[
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FieldPanel("hero_image"),
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FieldPanel("hero_unsplash_photo", widget=UnsplashPhotoChooser),
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],
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heading="Hero image",
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),
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FieldPanel("body"),
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]
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search_fields = BasePage.search_fields + [
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index.SearchField("body"),
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index.SearchField("subtitle"),
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]
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class Meta:
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abstract = True
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@cached_property
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def table_of_contents(self) -> list[TocEntry]:
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return get_table_of_contents(self.content_html)
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@cached_property
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def show_table_of_contents(self) -> bool:
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return len(self.table_of_contents) >= 3
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@cached_property
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def reading_time(self) -> timedelta:
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"""
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https://help.medium.com/hc/en-us/articles/214991667-Read-time
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"""
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return timedelta(seconds=(self.word_count / 265) * 60)
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@cached_property
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def reading_time_display(self) -> str:
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return NaturalTimeFormatter.string_for(
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timezone.now() - self.reading_time
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).removesuffix(" ago")
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@cached_property
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def show_reading_time(self) -> bool:
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"""
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Only show reading time if it's longer than 2 minutes
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"""
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return self.reading_time.total_seconds() >= 120
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@cached_property
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def word_count(self) -> int:
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return count_words(self.plain_text)
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@cached_property
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def summary(self) -> str:
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return truncate_string(self.plain_text, 50)
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@cached_property
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def body_html(self) -> str:
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return add_heading_anchors(self._body_html)
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@cached_property
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def _body_html(self) -> str:
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return str(self.body)
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@cached_property
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def content_html(self) -> str:
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return get_content_html(self._body_html)
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@cached_property
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def plain_text(self) -> str:
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return extract_text(self.content_html)
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def hero_url(
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self, image_size: str, wagtail_image_spec_extra: Optional[str] = None
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) -> Optional[str]:
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if self.hero_unsplash_photo_id is not None:
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return self.hero_unsplash_photo.get_image_urls()[image_size]
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elif self.hero_image_id is not None:
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image_width = UNSPLASH_SIZES[image_size]
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wagtail_image_spec = f"width-{image_width}"
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if wagtail_image_spec_extra:
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wagtail_image_spec += wagtail_image_spec_extra
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return generate_image_url(self.hero_image, wagtail_image_spec)
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return None
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@cached_property
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def hero_image_urls(self) -> dict:
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return {
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int(width * 1.5): self.hero_url(size)
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for size, width in UNSPLASH_SIZES.items()
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}
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def hero_image_url(self) -> Optional[str]:
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return self.hero_url("regular")
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@cached_property
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def list_image_url(self) -> Optional[str]:
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return self.hero_url("small")
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def get_meta_url(self) -> str:
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return self.full_url
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def get_meta_image_url(self, request: HttpRequest) -> Optional[str]:
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return self.hero_url("regular", "|format-png")
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def get_meta_title(self) -> str:
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return self.html_title
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def get_meta_description(self) -> str:
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return self.summary
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def get_object_title(self) -> str:
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return ""
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class ContentPage(BaseContentPage):
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subpage_types: list[Any] = []
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class BaseListingPage(RoutablePageMixin, BaseContentPage):
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PAGE_SIZE = 20
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subtitle = None
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content_panels = [
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panel
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for panel in BaseContentPage.content_panels
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if getattr(panel, "field_name", None) != "subtitle"
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]
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search_fields = [
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panel
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for panel in BaseContentPage.search_fields
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if getattr(panel, "field_name", None) != "subtitle"
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]
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class Meta:
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abstract = True
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def get_listing_pages(self) -> models.QuerySet:
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return self.get_children().live().public().specific().order_by("title")
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def get_paginator_page(self) -> PaginatorPage:
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paginator = Paginator(self.get_listing_pages(), per_page=self.PAGE_SIZE)
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try:
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return paginator.page(self.serializer.validated_data["page"])
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except EmptyPage as e:
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raise Http404 from e
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def get_context(self, request: HttpRequest) -> dict:
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context = super().get_context(request)
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context["listing_pages"] = self.get_paginator_page()
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return context
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@cached_property
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def show_table_of_contents(self) -> bool:
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return False
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@cached_property
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def show_reading_time(self) -> bool:
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return False
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@property
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def feed_class(self) -> Type[Feed]:
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from .views import ContentPageFeed
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return ContentPageFeed
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@route(r"^$")
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def index_route(self, request: HttpRequest) -> HttpResponse:
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self.serializer = PaginationSerializer(data=request.GET)
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if not self.serializer.is_valid():
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return HttpResponseBadRequest()
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return super().index_route(request)
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@route(r"^feed/$")
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@method_decorator(cache_page(60 * 30))
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def feed(self, request: HttpRequest) -> HttpResponse:
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return self.feed_class(
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self.get_listing_pages(),
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self.get_full_url(request),
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self.html_title_tag,
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)(request)
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class ListingPage(BaseListingPage):
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pass
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@register_snippet
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class ReferralLink(models.Model, index.Indexed):
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url = models.URLField()
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name = models.CharField(max_length=64, unique=True)
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panels = [
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FieldPanel("name"),
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FieldPanel("url"),
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]
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search_fields = [index.AutocompleteField("name"), index.SearchField("url")]
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def __str__(self) -> str:
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return self.name
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@register_setting(icon="arrow-down")
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class FooterSetting(BaseGenericSetting):
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icons = StreamField(
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[("icon", SnippetChooserBlock("contact.OnlineAccount", icon="user"))],
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use_json_field=True,
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)
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panels = [FieldPanel("icons")]
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class Meta:
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verbose_name = "Footer"
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