misc: use a template to render the text cell (#13367)

combo/data/models.py

@@ -441,11 +441,13 @@ class CellBase(models.Model):
 class TextCell(CellBase):
     text = RichTextField(_('Text'), blank=True, null=True)
 
+    template_name = 'combo/text-cell.html'
+
     class Meta:
         verbose_name = _('Text')
 
-    def render(self, context):
-        return mark_safe(self.text or '')
+    def is_relevant(self, context):
+        return bool(self.text)
 
     def get_additional_label(self):
         if not self.text:

combo/public/templates/combo/text-cell.html

@@ -0,0 +1 @@
+{{cell.text|safe}}

tests/test_public.py

@@ -204,7 +204,7 @@ def test_ajax_cell(app):
     cell.save()
     resp = app.get(reverse('combo-public-ajax-page-cell',
         kwargs={'page_pk': page.id, 'cell_reference': cell.get_reference()}))
-    assert resp.body == '<p>Foobar</p>'
+    assert resp.body.strip() == '<p>Foobar</p>'
 
     resp = app.get(reverse('combo-public-ajax-page-cell',
         kwargs={'page_pk': page2.id, 'cell_reference': cell.get_reference()}),