navigate to secondary sections

src/c3nav/editor/templates/editor/section.html

@@ -6,9 +6,34 @@
     {% trans 'Section' as model_title %}
     {% blocktrans %}Edit {{ model_title }}{% endblocktrans %}
 </a>
-<h3>{{ section.title }}</h3>
+<h3>
+    {{ section.title }}
+    {% if section.on_top_of != None %}
+        {% with section.on_top_of.title as on_top_of_section_title %}
+            <small>{% blocktrans %}on top of {{ on_top_of_section_title }}{% endblocktrans %}</small>
+        {% endwith %}
+    {% endif %}
+</h3>
 <p>
-    <a href="{% url 'editor.index' %}">&laquo; {% trans 'back to overview' %}</a>
+    {% if section.on_top_of == None %}
+        <a href="{% url 'editor.index' %}">&laquo; {% trans 'back to overview' %}</a>
+    {% else %}
+        <a href="{% url 'editor.sections.detail' pk=section.on_top_of.pk %}">&laquo; {% trans 'back to parent section' %}</a>
+    {% endif %}
 </p>
 
 {% include 'editor/fragment_child_models.html' %}
+
+{% if section.on_top_of == None %}
+<a class="btn btn-default btn-sm pull-right" accesskey="n" href="{{ create_url }}">
+    {% blocktrans %}New {{ model_title }}{% endblocktrans %}
+</a>
+<h3>{% trans 'Sections on top' %}</h3>
+<div class="list-group">
+{% for s in sections_on_top %}
+    <a href="{% url 'editor.sections.detail' pk=s.pk %}" class="list-group-item">
+        {{ s.title }}
+    </a>
+{% endfor %}
+</div>
+{% endif %}

src/c3nav/editor/views.py

@@ -39,7 +39,7 @@ def child_model(model_name, kwargs=None, parent=None):
 @sidebar_view
 def main_index(request):
     return render(request, 'editor/index.html', {
-        'sections': Section.objects.filter(on_top_of__isnull=True),
+        'sections': Section.objects.all(),
         'child_models': [
             child_model('LocationGroup'),
             child_model('Source'),
@@ -49,17 +49,18 @@ def main_index(request):
 
 @sidebar_view
 def section_detail(request, pk):
-    section = get_object_or_404(Section, pk=pk)
+    section = get_object_or_404(Section.objects.select_related('on_top_of'), pk=pk)
 
     return render(request, 'editor/section.html', {
-        'sections': Section.objects.filter(on_top_of__isnull=True),
+        'sections': Section.objects.all(),
         'section': section,
         'section_url': 'editor.sections.detail',
         'section_as_pk': True,
 
         'child_models': [child_model(model_name, kwargs={'section': pk}, parent=section)
                          for model_name in ('Building', 'Space', 'Door')],
-        'geometry_url': '/api/editor/geometries/?section='+pk,
+        'sections_on_top': section.sections_on_top.all(),
+        'geometry_url': '/api/editor/geometries/?section='+str(section.primary_section_pk),
     })
 
 
@@ -121,7 +122,7 @@ def edit(request, pk=None, model=None, section=None, space=None, explicit_edit=F
         })
         if not new:
             ctx.update({
-                'geometry_url': '/api/editor/geometries/?section='+pk,
+                'geometry_url': '/api/editor/geometries/?section='+str(section.primary_section_pk),
             })
     elif model == Space and not new:
         ctx.update({
@@ -133,7 +134,7 @@ def edit(request, pk=None, model=None, section=None, space=None, explicit_edit=F
         ctx.update({
             'section': section,
             'back_url': reverse('editor.spaces.list', kwargs={'section': section.pk}),
-            'geometry_url': '/api/editor/geometries/?section='+str(section.pk),
+            'geometry_url': '/api/editor/geometries/?section='+str(section.primary_section_pk),
         })
     elif hasattr(model, 'section'):
         if obj:
@@ -141,7 +142,7 @@ def edit(request, pk=None, model=None, section=None, space=None, explicit_edit=F
         ctx.update({
             'section': section,
             'back_url': reverse('editor.'+related_name+'.list', kwargs={'section': section.pk}),
-            'geometry_url': '/api/editor/geometries/?section='+str(section.pk),
+            'geometry_url': '/api/editor/geometries/?section='+str(section.primary_section_pk),
         })
     elif hasattr(model, 'space'):
         if obj:
@@ -247,7 +248,7 @@ def list_objects(request, model=None, section=None, space=None, explicit_edit=Fa
             'sections': Section.objects.all(),
             'section': section,
             'section_url': request.resolver_match.url_name,
-            'geometry_url': '/api/editor/geometries/?section='+str(section.pk),
+            'geometry_url': '/api/editor/geometries/?section='+str(section.primary_section_pk),
         })
     elif space is not None:
         reverse_kwargs['space'] = space

src/c3nav/mapdata/models/section.py

@@ -36,6 +36,10 @@ class Section(SpecificLocation, EditorFormMixin, models.Model):
             raise TypeError
         return Section.objects.filter(altitude__gt=self.altitude, on_top_of__isnull=True).order_by('altitude')
 
+    @property
+    def primary_section_pk(self):
+        return self.pk if self.on_top_of_id is None else self.on_top_of_id
+
     def _serialize(self, section=True, **kwargs):
         result = super()._serialize(**kwargs)
         result['altitude'] = float(str(self.altitude))