Add new building objects from the BuildingInline (#344)

* come on i know this works

* Hack to get the nn

* Add existing buildings to node through new Inline

* Make collapsible and clean up name

src/meshapi/admin.py

@@ -46,13 +46,28 @@ class NonrelatedBuildingInline(BetterNonrelatedInline):
     fields = ["primary_node", "bin", "street_address", "city", "zip_code"]
     readonly_fields = fields
 
+    add_button = True
+
+    # Hack to get the NN
+    network_number = None
+
     def get_form_queryset(self, obj):
+        self.network_number = obj.pk
         return self.model.objects.filter(nodes=obj)
 
     def save_new_instance(self, parent, instance):
         pass
 
 
+class BuildingMembershipInline(admin.TabularInline):
+    model = Building.nodes.through
+    extra = 0
+    autocomplete_fields = ["building_id"]
+    classes = ["collapse"]
+    verbose_name = "Building"
+    verbose_name_plural = "Edit Related Buildings"
+
+
 # This controls the list of installs reverse FK'd to Buildings and Members
 class InstallInline(BetterInline):
     model = Install
@@ -500,7 +515,14 @@ class NodeAdmin(admin.ModelAdmin):
             },
         ),
     ]
-    inlines = [InstallInline, NonrelatedBuildingInline, DeviceInline, SectorInline, NodeLinkInline]
+    inlines = [
+        InstallInline,
+        NonrelatedBuildingInline,
+        BuildingMembershipInline,
+        DeviceInline,
+        SectorInline,
+        NodeLinkInline,
+    ]
 
     def address(self, obj):
         return obj.buildings.first()

src/meshapi/templates/admin/install_tabular.html

@@ -70,5 +70,11 @@ <h2>{{ inline_admin_formset.opts.verbose_name_plural|capfirst }}</h2>
      </tbody>
    </table>
 </fieldset>
+  <!--TODO: Add collapsible menu to add existing buildings...?-->
+  <div>
+    {% if inline_admin_formset.opts.add_button %}
+      <a href="{{ request.scheme }}://{{ request.get_host }}{% url 'admin:meshapi_building_add' %}?primary_node={{ inline_admin_formset.opts.network_number }}" class="addlink">Add</a>
+    {% endif %}
+  </div>
   </div>
 </div>