sort collections in series (detail) by start date

scipost_django/series/templates/series/series_detail.html

@@ -54,7 +54,7 @@
     <div class="col-lg-6">
       <h3 class="highlight" id="collections">Collections in this Series</h3>
       <ul>
-	{% for collection in series.collection_set.all %}
+	{% for collection in collections %}
 	  <li><a href="{{ collection.get_absolute_url }}">{{ collection }}</a></li>
 	{% empty %}
 	  <li>No Collection has yet been assembled for this Series</li>

scipost_django/series/views.py

@@ -32,6 +32,15 @@ class SeriesDetailView(DetailView):
 
     model = Series
 
+    def get_context_data(self, *args, **kwargs):
+        context = super().get_context_data(*args, **kwargs)
+
+        # Sort collections in series by event start date
+        context["collections"] = self.object.collection_set.all().order_by(
+            "event_start_date"
+        )
+        return context
+
 
 class CollectionDetailView(DetailView):
     """