manager: very rough hierarchy navigation

combo/data/models.py

@@ -47,6 +47,9 @@ class Page(models.Model):
             parts.append(page.slug)
         return '/' + '/'.join(reversed(parts))
 
+    def has_children(self):
+        return Page.objects.filter(parent_id=self.id).exists()
+
 
 class CellBase(models.Model):
     page = models.ForeignKey(Page)

combo/manager/templates/combo/pages_list.html

@@ -3,8 +3,13 @@
 {% block content %}
 
 <ul>
+ {% if parent %}
+ <li><a href="{% if parent.parent_id %}?parent={{ parent.parent_id }}{% else %}.{% endif %}">..</a></li>
+ {% endif %}
  {% for page in object_list %}
- <li><a href="{% url 'combo-manager-page-view' pk=page.id %}">{{ page.title }}</a></li>
+ <li><a href="{% url 'combo-manager-page-view' pk=page.id %}">{{ page.title }}</a>
+ {% if page.has_children %}<a href="?parent={{ page.id }}">+</a>{% endif %}
+ </li>
  {% endfor %}
 </ul>
 

combo/manager/views.py

@@ -38,6 +38,21 @@ class PagesListView(ListView):
     model = Page
     template_name = 'combo/pages_list.html'
 
+    def get_queryset(self):
+        queryset = super(PagesListView, self).get_queryset()
+        try:
+            parent_id = self.request.GET['parent']
+        except KeyError:
+            return queryset.filter(parent_id__isnull=True)
+        return queryset.filter(parent_id=parent_id)
+
+    def get_context_data(self, **kwargs):
+        context = super(PagesListView, self).get_context_data(**kwargs)
+        if self.request.GET.get('parent'):
+            context['parent'] = Page.objects.get(id=self.request.GET['parent'])
+        return context
+
+
 pages_list = PagesListView.as_view()