related objects for serializer

validity/templates/validity/serializer.html

@@ -22,6 +22,9 @@ <h5 class="card-header">Serializer</h5>
           </div>
         </div>
       </div>
+      <div class="row mb-3">
+        {% include 'inc/panels/related_objects.html' %}
+      </div>
       <div class="row">
         {% include 'inc/panels/tags.html' %}
       </div>
@@ -38,7 +41,7 @@ <h5 class="card-header">Template [Source: {{ object | data_source }}]</h5>
   <div class="row">
     <div class="col col-md-12">
       <div class="card">
-        <h5 class="card-header">Bound Devices</h5>
+        <h5 class="card-header">All Bound Devices</h5>
         <div class="card-body">
           <div class="pt-0 mb-3 col col-md-3">
             {% include 'validity/inc/search_form.html' with model='Device' %}

validity/views/serializer.py

@@ -1,5 +1,7 @@
 from dcim.filtersets import DeviceFilterSet
+from dcim.models import Device, DeviceType, Manufacturer
 from dcim.tables import DeviceTable
+from django.db.models import Q
 from netbox.views import generic
 from utilities.views import register_model_view
 
@@ -21,6 +23,17 @@ class SerializerView(TableMixin, generic.ObjectView):
     table = DeviceTable
     filterset = DeviceFilterSet
 
+    def get_extra_context(self, request, instance):
+        cf_filter = Q(custom_field_data__serializer=instance.pk)
+        related_models = [
+            (model.objects.restrict(request.user, "view").filter(cf_filter), "cf_serializer")
+            for model in (Device, DeviceType, Manufacturer)
+        ]
+        related_models.append(
+            (models.Command.objects.restrict(request.user, "view").filter(serializer=instance), "serializer_id")
+        )
+        return super().get_extra_context(request, instance) | {"related_models": related_models}
+
 
 @register_model_view(models.Serializer, "delete")
 class SerializerDeleteView(generic.ObjectDeleteView):