From 9139ad1aa2c62236ac04c8d4d2e3394283b09644 Mon Sep 17 00:00:00 2001
From: Konstantin Kostov <konstantin@headbright.be>
Date: Tue, 26 Mar 2024 18:08:42 +0100
Subject: [PATCH] Add RSS and Atom feed for the blog

---
 blog/feeds.py                         | 45 +++++++++++++++++++++++++++
 iamkonstantin_web/templates/base.html |  2 ++
 iamkonstantin_web/urls.py             |  2 ++
 3 files changed, 49 insertions(+)
 create mode 100644 blog/feeds.py

diff --git a/blog/feeds.py b/blog/feeds.py
new file mode 100644
index 0000000..f170da6
--- /dev/null
+++ b/blog/feeds.py
@@ -0,0 +1,45 @@
+from datetime import datetime, time
+
+from django.contrib.syndication.views import Feed
+from django.http import Http404
+
+from .models import BlogPage, BlogIndexPage
+from django.utils.feedgenerator import Atom1Feed
+
+
+class RssBlogFeed(Feed):
+    title = "Konstantin's Blog Feed"
+    description = "A blog on independent software development, Swift, Elixir and more..."
+
+    def link(self):
+        root = BlogIndexPage.objects.live().public().first()
+        if not root:
+            raise Http404
+        return root.full_url
+
+    def items(self):
+        return BlogPage.objects.live().public().order_by("-first_published_at")
+
+    def item_title(self, item):
+        return item.title
+
+    def item_description(self, item):
+        return item.intro
+
+    def item_link(self, item):
+        return item.full_url
+
+    def item_pubdate(self, item):
+        return datetime.combine(item.date, time())
+
+    def item_author_name(self, item):
+        author = item.authors.first()
+        if not author:
+            return None
+
+        return author.name
+
+
+class AtomBlogFeed(RssBlogFeed):
+    feed_type = Atom1Feed
+    subtitle = RssBlogFeed.description
\ No newline at end of file
diff --git a/iamkonstantin_web/templates/base.html b/iamkonstantin_web/templates/base.html
index 02596e8..d4253b8 100644
--- a/iamkonstantin_web/templates/base.html
+++ b/iamkonstantin_web/templates/base.html
@@ -35,6 +35,8 @@
     {# Global stylesheets #}
     <link rel="stylesheet" type="text/css" href="{% static 'css/iamkonstantin_web.css' %}">
 
+    <link title="Konstantin's Blog" type="application/atom+xml" rel="alternate" href="{% url 'blog_feed' %}">
+
     {% block extra_css %}
         {# Override this in templates to add extra stylesheets #}
     {% endblock %}
diff --git a/iamkonstantin_web/urls.py b/iamkonstantin_web/urls.py
index 98d4e4a..017d2ef 100644
--- a/iamkonstantin_web/urls.py
+++ b/iamkonstantin_web/urls.py
@@ -6,6 +6,7 @@ from wagtail.admin import urls as wagtailadmin_urls
 from wagtail import urls as wagtail_urls
 from wagtail.documents import urls as wagtaildocs_urls
 
+from blog.feeds import RssBlogFeed
 from search import views as search_views
 
 urlpatterns = [
@@ -13,6 +14,7 @@ urlpatterns = [
     path("admin/", include(wagtailadmin_urls)),
     path("documents/", include(wagtaildocs_urls)),
     path("search/", search_views.search, name="search"),
+    path("blog/feed/", RssBlogFeed(), name="blog_feed"),
 ]