From 315251071ce3fe2ae544aa3cf77dd18c07576edf Mon Sep 17 00:00:00 2001
From: Kesara Rathnayake <kesara@fq.nz>
Date: Tue, 18 Jul 2023 00:47:41 +1200
Subject: [PATCH] feat: Use IETF IAB blog feed on the home page

Fixes #317
---
 ietf/home/models.py                         | 38 +++++++++++++++------
 ietf/home/templates/home/iab_home_page.html |  2 +-
 ietf/home/templates/includes/post_iab.html  | 24 ++-----------
 ietf/settings/base.py                       |  5 ++-
 4 files changed, 35 insertions(+), 34 deletions(-)

diff --git a/ietf/home/models.py b/ietf/home/models.py
index de8eb0a1..fae373b7 100644
--- a/ietf/home/models.py
+++ b/ietf/home/models.py
@@ -1,11 +1,13 @@
 from __future__ import unicode_literals
 
 from datetime import datetime
+from xml.etree import ElementTree
 
 from django.conf import settings
 from django.db import models
 from django.db.models.expressions import RawSQL
 from modelcluster.fields import ParentalKey
+from requests import get as get_request
 from wagtail.admin.panels import FieldPanel, InlinePanel, MultiFieldPanel
 from wagtail.models import Page
 from wagtail.search import index
@@ -204,6 +206,8 @@ class Meta:
         index.SearchField("heading"),
     ]
 
+    blog_index_url = settings.IAB_IETF_BLOG_URL
+
     def announcements(self):
         return (
             IABAnnouncementPage.objects.all()
@@ -218,17 +222,29 @@ def blog_index(self):
         return BlogIndexPage.objects.live().first()
 
     def blogs(self, bp_kwargs={}):
-        return (
-            BlogPage.objects.live()
-            .filter(topics__topic__slug="iab")
-            .annotate(
-                date_sql=RawSQL(
-                    "CASE WHEN (date_published IS NOT NULL) THEN date_published ELSE first_published_at END",
-                    (),
-                )
-            )
-            .order_by("-date_sql")[:2]
-        )
+        entries = []
+        try:
+            response = get_request(settings.IAB_FEED_URL)
+            xml_data = response.text
+
+            root = ElementTree.fromstring(xml_data)
+            for item in root.iter('item'):
+                title = item.find('title').text
+                description = item.find('description').text
+                link = item.find('link').text
+                published_date = datetime.strptime(item.find('pubDate').text, '%a, %d %b %Y %H:%M:%S %z')
+
+                entry_data = {
+                    'title': title,
+                    'description': description,
+                    'link': link,
+                    'published_date': published_date,
+                }
+                entries.append(entry_data)
+        except Exception as _:
+            pass
+
+        return entries
 
     content_panels = Page.content_panels + [
         MultiFieldPanel(
diff --git a/ietf/home/templates/home/iab_home_page.html b/ietf/home/templates/home/iab_home_page.html
index 29105978..504d2399 100644
--- a/ietf/home/templates/home/iab_home_page.html
+++ b/ietf/home/templates/home/iab_home_page.html
@@ -46,7 +46,7 @@ <h2 class="mb-4">Blog posts</h2>
                 </ul>
                 <a
                     class="btn iab-btn-secondary text-white"
-                    href="{{ self.blog_index.url }}iab/"
+                    href="{{ self.blog_index_url }}"
                     >All IAB Posts on the IETF Blog</a
                 >
             </section>
diff --git a/ietf/home/templates/includes/post_iab.html b/ietf/home/templates/includes/post_iab.html
index 382ba922..2e25e15d 100644
--- a/ietf/home/templates/includes/post_iab.html
+++ b/ietf/home/templates/includes/post_iab.html
@@ -1,31 +1,13 @@
 {% load wagtailimages_tags %}
 
 <li class="card mb-4 row g-0 align-items-stretch iab-blog-post">
-    <div>
-        {% if post.feed_image and show_image %}
-            {% image post.feed_image height-245 as post_image %}
-            <img class="blog-post-image-iab u-obj-cover w-100 h-100" src="{{ post_image.url }}" alt="{{ post.main_image.title }}">
-        {% endif %}
-    </div>
     {# col-* classes include positioning, position static cancels that and allows the stretched link to cover the image #}
     <div class="card-body card-body--iab">
-        <h3 class="mb-3 h5"><a class="stretched-link" href="{{ post.url }}">{{ post.title }}</a></h3>
-        <p class="iab-card-text">{{ post.introduction|truncatechars:250 }}</p>
+        <h3 class="mb-3 h5"><a class="stretched-link" href="{{ post.link }}">{{ post.title }}</a></h3>
+        <p class="iab-card-text">{{ post.description|truncatechars:250 }}</p>
         <div class="d-flex justify-content-between align-items-center iab-date-text">
             <small>
-                {% if post.date %}
-                    <p>{{ post.date|date:"DATE_FORMAT" }}</p>
-                {% elif post.start_date %}
-                    <p>{{ post.start_date|date:"DATE_FORMAT" }}</p>
-                {% endif %}
-
-                {% if post.listing_location %}
-                    <p>{{ post.listing_location }}</p>
-                {% endif %}
-
-                {% if post.host %}
-                    <p>{{ post.host.title }}</p>
-                {% endif %}
+                <p>{{ post.published_date|date:"DATE_FORMAT" }}</p>
             </small>
         </div>
     </div>
diff --git a/ietf/settings/base.py b/ietf/settings/base.py
index f0da61f9..0c4cb0a0 100644
--- a/ietf/settings/base.py
+++ b/ietf/settings/base.py
@@ -244,4 +244,7 @@
     "home.IABHomePage",
 ]
 
-NOTE_WELL_REPO = "https://raw.githubusercontent.com/ietf/note-well/main/note-well.md"
\ No newline at end of file
+IAB_FEED_URL = "https://www.ietf.org/blog/iab/feed"
+IAB_IETF_BLOG_URL = "https://www.ietf.org/blog/iab/"
+
+NOTE_WELL_REPO = "https://raw.githubusercontent.com/ietf/note-well/main/note-well.md"