wcs: fix cards list css class (#56029)

combo/apps/wcs/models.py

@@ -843,6 +843,9 @@ class WcsCardsCell(CardMixin, WcsBlurpMixin, CellBase):
 
         populate_cache()
 
+    def card_slug(self):
+        return self.carddef_reference.split(':')[1]
+
     def is_visible(self, **kwargs):
         user = kwargs.get('user')
         if self.only_for_user and (not user or user.is_anonymous):

combo/apps/wcs/templates/combo/wcs/cards.html

@@ -8,7 +8,7 @@
 {% endblock %}
 
 {% if cards %}
-<div class="links-list cards-{{ slug }} list-of-cards">
+<div class="links-list cards-{{ cell.card_slug }} list-of-cards">
   <ul>
     {% for data in cards %}
     <li>

tests/test_wcs.py

@@ -1394,9 +1394,11 @@ def test_cards_cell_render(mock_send, context):
         result = cell.render(context)
 
     context['synchronous'] = True  # to get fresh content
+    context['cell'] = cell
 
     result = cell.render(context)
     assert '<h2>Card Model 1</h2>' in result
+    assert 'cards-card_model_1' in result
     assert (
         '<a href="http://127.0.0.1:8999/backoffice/data/card_model_1/11/"><span class="card-title">aa</span></a>'
         in result