Disable scales if no items are available

ram/bookshelf/admin.py

@@ -121,6 +121,7 @@ class CatalogAdmin(SortableAdminBase, admin.ModelAdmin):
         BookDocInline,
     )
     list_display = (
+        "__str__",
         "manufacturer",
         "years",
         "get_scales",

ram/portal/templates/bookshelf/book.html

@@ -46,10 +46,12 @@
             <div class="mx-auto">
               <nav class="nav nav-tabs d-none d-lg-flex flex-row mb-2" id="nav-tab" role="tablist">
                 <button class="nav-link active" id="nav-summary-tab" data-bs-toggle="tab" data-bs-target="#nav-summary" type="button" role="tab" aria-controls="nav-summary" aria-selected="true">Summary</button>
+                {% if documents %}<button class="nav-link" id="nav-documents-tab" data-bs-toggle="tab" data-bs-target="#nav-documents" type="button" role="tab" aria-controls="nav-documents" aria-selected="false">Documents</button>{% endif %}
                 {% if book.notes %}<button class="nav-link" id="nav-notes-tab" data-bs-toggle="tab" data-bs-target="#nav-notes" type="button" role="tab" aria-controls="nav-notes" aria-selected="false">Notes</button>{% endif %}
               </nav>
               <select class="form-select d-lg-none mb-2" id="tabSelector" aria-label="Tab selector">
                 <option value="nav-summary" selected>Summary</option>
+                {% if documents %}<option value="nav-documents">Documents</option>{% endif %}
                 {% if book.notes %}<option value="nav-notes">Notes</option>{% endif %}
               </select>
               <div class="tab-content" id="nav-tabContent">
@@ -131,6 +133,24 @@
                   </table>
                   {% endif %}
                 </div>
+                <div class="tab-pane" id="nav-documents" role="tabpanel" aria-labelledby="nav-documents-tab">
+                  <table class="table table-striped">
+                    <thead>
+                      <tr>
+                        <th colspan="3" scope="row">Documents</th>
+                      </tr>
+                    </thead>
+                    <tbody class="table-group-divider">
+                    {% for d in documents.all %}
+                      <tr>
+                        <td class="w-33">{{ d.description }}</td>
+                        <td><a href="{{ d.file.url }}" target="_blank">{{ d.filename }}</a></td>
+                        <td class="text-end">{{ d.file.size | filesizeformat }}</td>
+                      </tr>
+                    {% endfor %}
+                    </tbody>
+                  </table>
+                </div>
                 <div class="tab-pane" id="nav-notes" role="tabpanel" aria-labelledby="nav-notes-tab">
                   {{ book.notes | safe }}
                 </div>

ram/portal/templates/cards/scale.html

@@ -28,7 +28,7 @@
               </tbody>
             </table>
             <div class="d-grid gap-2 mb-1 d-md-block">
-              <a class="btn btn-sm btn-outline-primary" href="{% url 'filtered' _filter="scale" search=d.item.slug %}">Show all rolling stock</a>
+              <a class="btn btn-sm btn-outline-primary{% if d.item.num_items == 0 %} disabled{% endif %}" href="{% url 'filtered' _filter="scale" search=d.item.slug %}">Show all rolling stock</a>
               {% if request.user.is_staff %}<a class="btn btn-sm btn-outline-danger" href="{% url 'admin:metadata_scale_change' d.item.pk %}">Edit</a>{% endif %}
             </div>
           </div>

ram/portal/views.py

@@ -7,7 +7,7 @@ from urllib.parse import unquote
 from django.views import View
 from django.http import Http404, HttpResponseBadRequest
 from django.db.utils import OperationalError, ProgrammingError
-from django.db.models import Q
+from django.db.models import Q, Count
 from django.shortcuts import render, get_object_or_404, get_list_or_404
 from django.core.exceptions import ObjectDoesNotExist
 from django.core.paginator import Paginator
@@ -507,7 +507,9 @@ class Scales(GetData):
     queryset = Scale.objects.all()
 
     def get_data(self, request):
-        return Scale.objects.all()
+        return Scale.objects.annotate(
+            num_items=Count("rollingstock")
+        )  # .filter(num_items__gt=0) to filter data with no items
 
 
 class Types(GetData):
@@ -549,14 +551,16 @@ class GetBookCatalog(View):
         except ObjectDoesNotExist:
             raise Http404
 
-        book_properties = book.property.get_public(request.user)
+        properties = book.property.get_public(request.user)
+        documents = book.document.get_public(request.user)
         return render(
             request,
             "bookshelf/book.html",
             {
                 "title": book,
-                "book_properties": book_properties,
                 "book": book,
+                "documents": documents,
+                "properties": properties,
                 "type": selector
             },
         )

ram/ram/__init__.py

@@ -1,4 +1,4 @@
 from ram.utils import git_suffix
 
-__version__ = "0.14.0"
+__version__ = "0.14.2"
 __version__ += git_suffix(__file__)