Only show editions with the author on the author page

bookwyrm/models/book.py

@@ -241,6 +241,10 @@ class Work(OrderedCollectionPageMixin, Book):
         """in case the default edition is not set"""
         return self.editions.order_by("-edition_rank").first()
 
+    def author_edition(self, author):
+        """in case the default edition doesn't have the required author"""
+        return self.editions.filter(authors=author).order_by("-edition_rank").first()
+
     def to_edition_list(self, **kwargs):
         """an ordered collection of editions"""
         return self.to_ordered_collection(

bookwyrm/templates/author/author.html

@@ -3,6 +3,7 @@
 {% load markdown %}
 {% load humanize %}
 {% load utilities %}
+{% load book_display_tags %}
 
 {% block title %}{{ author.name }}{% endblock %}
 
@@ -141,7 +142,7 @@
         <h2 class="title is-4">{% blocktrans with name=author.name %}Books by {{ name }}{% endblocktrans %}</h2>
         <div class="columns is-multiline is-mobile">
         {% for book in books %}
-        {% with book=book.default_edition %}
+        {% with book=book|author_edition:author %}
             <div class="column is-one-fifth-tablet is-half-mobile is-flex is-flex-direction-column">
                 <div class="is-flex-grow-1">
                     {% include 'landing/small-book.html' with book=book %}

bookwyrm/templatetags/book_display_tags.py

@@ -20,3 +20,9 @@ def get_book_description(book):
 def get_book_file_links(book):
     """links for a book"""
     return book.file_links.filter(domain__status="approved")
+
+
+@register.filter(name="author_edition")
+def get_author_edition(book, author):
+    """default edition for a book on the author page"""
+    return book.author_edition(author)