2022-08-27 12:21:13 +01:00
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from typing import Any, Type
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2022-06-19 19:24:29 +01:00
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2022-06-19 20:55:37 +01:00
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from django.db import models
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from django.db.models.functions import TruncMonth
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from django.utils import timezone
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from django.utils.functional import cached_property
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from modelcluster.fields import ParentalManyToManyField
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from wagtail.admin.panels import FieldPanel
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from wagtailautocomplete.edit_handlers import AutocompletePanel
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from website.common.models import BaseContentPage, BaseListingPage
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from website.common.utils import TocEntry, prefetch_for_listing
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from website.common.views import ContentPageFeed
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class BlogPostListPage(BaseListingPage):
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max_count = 1
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subpage_types = [
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"blog.BlogPostPage",
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"blog.BlogPostTagListPage",
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"blog.BlogPostCollectionListPage",
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"blog.BlogPostCollectionPage",
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]
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@cached_property
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def table_of_contents(self) -> list[TocEntry]:
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post_months = sorted(
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{
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dt.strftime("%Y-%m")
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for dt in self.get_paginator_page()
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.object_list.annotate(
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post_month=TruncMonth("date", output_field=models.DateField())
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)
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.values_list("post_month", flat=True)
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},
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reverse=True,
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)
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return [TocEntry(post_month, post_month, 0, []) for post_month in post_months]
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def get_listing_pages(self) -> models.QuerySet:
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return prefetch_for_listing(
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BlogPostPage.objects.descendant_of(self)
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.live()
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.public()
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.order_by("-date", "title")
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.prefetch_related("tags")
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)
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@property
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def feed_class(self) -> Type[ContentPageFeed]:
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from .views import BlogPostPageFeed
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return BlogPostPageFeed
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class BlogPostPage(BaseContentPage):
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subpage_types: list[Any] = []
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parent_page_types = [BlogPostListPage, "blog.BlogPostCollectionPage"]
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tags = ParentalManyToManyField("blog.BlogPostTagPage", blank=True)
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date = models.DateField(default=timezone.now)
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promote_panels = BaseContentPage.promote_panels + [
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FieldPanel("date"),
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AutocompletePanel("tags"),
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]
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class BlogPostTagListPage(BaseListingPage):
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max_count = 1
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parent_page_types = [BlogPostListPage]
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subpage_types = ["blog.BlogPostTagPage"]
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@cached_property
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def table_of_contents(self) -> list[TocEntry]:
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return [
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TocEntry(page.title, page.slug, 0, []) for page in self.get_listing_pages()
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]
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class BlogPostTagPage(BaseListingPage):
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subpage_types: list[Any] = []
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parent_page_types = [BlogPostTagListPage]
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@cached_property
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def html_title(self) -> str:
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return f"Pages tagged with '{super().html_title}'"
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def get_listing_pages(self) -> models.QuerySet:
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blog_list_page = BlogPostListPage.objects.get()
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return blog_list_page.get_listing_pages().filter(tags=self)
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@property
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def feed_class(self) -> Type[ContentPageFeed]:
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from .views import BlogPostPageFeed
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return BlogPostPageFeed
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class BlogPostCollectionListPage(BaseListingPage):
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subpage_types: list[Any] = []
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parent_page_types = [BlogPostListPage]
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max_count = 1
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@cached_property
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def table_of_contents(self) -> list[TocEntry]:
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return [
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TocEntry(page.title, page.slug, 0, []) for page in self.get_listing_pages()
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]
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def get_listing_pages(self) -> models.QuerySet:
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blog_list_page = BlogPostListPage.objects.get()
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return BlogPostCollectionPage.objects.child_of(blog_list_page).live().public()
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class BlogPostCollectionPage(BaseListingPage):
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parent_page_types = [BlogPostListPage]
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subpage_types = [BlogPostPage]
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def get_listing_pages(self) -> models.QuerySet:
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return prefetch_for_listing(
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BlogPostPage.objects.child_of(self)
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.live()
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.public()
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.prefetch_related("tags")
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.order_by("-date", "title")
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)
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@property
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def feed_class(self) -> Type[ContentPageFeed]:
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from .views import BlogPostPageFeed
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return BlogPostPageFeed
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