improve RSS feed - enclosures, RSS-specific blocks

main/blocks.py

 from django.utils.text import slugify
+from django.template.loader import render_to_string
 from wagtail.core.blocks import (
     CharBlock,
     ListBlock,

main/feeds.py

+import typing
+
 from datetime import datetime
 
 from django.contrib.syndication.views import Feed
@@ -92,3 +94,20 @@ class LatestArticlesFeed(Feed):
         item: MainArticlePage
     ) -> str:
         return item.get_full_url()
+
+    def item_enclosure_url(
+        self,
+        item: MainArticlePage
+    ) -> typing.Union[None, str]:
+        if item.image is None:
+            return None
+
+        return item.image.get_rendition("format-webp").full_url
+
+    item_enclosure_mime_type = "image/webp"
+
+    def item_enclosure_length(
+        self,
+        item: MainArticlePage
+    ) -> int:
+        return item.image.file_size

main/templates/main/feed_item_description.html

 {% load wagtailcore_tags %}
 
+<p>{{ item.perex }}</p>
+
 {% for block in item.content %}
-    {% include_block block %}
+    {% if block.block_type == "text" %}
+        {% comment %}
+            No need to wrap this in a <p>, as the value already does this
+        {% endcomment %}
+        {{ block.value }}
+    {% elif block.block_type == "quote" %}
+        <blockquote>„{{ block.value.quote }}“</blockquote>
+        <p>— {{ block.value.autor_name }}</p>
+    {% elif block.block_type == "download" %}
+        <p>
+            Soubor „{{ block.value.file }}“ ke stažení: <a href="{{ block.value.file.url }}">{{ block.value.file.url }}</a>
+        </p>
+    {% elif block.block_type == "image" %}
+        <a href="{{ block.value.href }}">
+            <img src="{{ block.value.image.url }}">
+        </a>
+        <p>{{ block.value.text }}</p>
+    {% endif %}
 {% endfor %}