Consolidate ObjectPermission detail view actions panel

Merge ObjectPermissionActionsPanel and ObjectPermissionCustomActionsPanel
into a single Actions panel that shows CRUD booleans and all registered
actions in one table, matching the form's consolidated layout.

Also fix data-object-types-selected attribute value (True -> 'true') and
update plugin docs to show Meta.permissions as the primary registration
approach.

docs/plugins/development/permissions.md

@@ -6,7 +6,22 @@ For example, a plugin might define a "sync" action for a model that syncs data f
 
 ## Registering Model Actions
 
-To register custom actions for a model, call `register_model_actions()` in your plugin's `ready()` method:
+The preferred way to register custom actions is via Django's `Meta.permissions` on the model class. NetBox will automatically register these as model actions when the app is loaded:
+
+```python
+from netbox.models import NetBoxModel
+
+class MyModel(NetBoxModel):
+    # ...
+
+    class Meta:
+        permissions = [
+            ('sync', 'Synchronize data from external source'),
+            ('export', 'Export data to external system'),
+        ]
+```
+
+For dynamic registration (e.g. when actions depend on runtime state), you can call `register_model_actions()` directly, typically in your plugin's `ready()` method:
 
 ```python
 # __init__.py
@@ -29,7 +44,7 @@ class MyPluginConfig(PluginConfig):
 config = MyPluginConfig
 ```
 
-Once registered, these actions will appear grouped under your model's name when creating or editing an ObjectPermission that includes your model as an object type.
+Once registered, these actions appear as checkboxes in a flat list when creating or editing an ObjectPermission.
 
 ::: utilities.permissions.ModelAction
 

netbox/templates/users/panels/actions.html

@@ -3,12 +3,18 @@
 
 {% block panel_content %}
   <table class="table table-hover attr-table">
-    {% for action, models in custom_actions %}
+    {% for label, enabled in crud_actions %}
+      <tr>
+        <th scope="row">{{ label }}</th>
+        <td>{% checkmark enabled %}</td>
+      </tr>
+    {% endfor %}
+    {% for action, enabled, models in registered_actions %}
       <tr>
         <th scope="row">{{ action }}</th>
         <td>
           <div class="d-flex justify-content-between align-items-start">
-            {% checkmark True %}
+            {% checkmark enabled %}
             {% if models %}
               <small class="text-muted">{{ models }}</small>
             {% endif %}

netbox/users/ui/panels.py

@@ -47,54 +47,44 @@ class ObjectPermissionPanel(panels.ObjectAttributesPanel):
     enabled = attrs.BooleanAttr('enabled')
 
 
-class ObjectPermissionActionsPanel(panels.ObjectAttributesPanel):
+class ObjectPermissionActionsPanel(panels.ObjectPanel):
+    template_name = 'users/panels/actions.html'
     title = _('Actions')
 
-    can_view = attrs.BooleanAttr('can_view', label=_('View'))
-    can_add = attrs.BooleanAttr('can_add', label=_('Add'))
-    can_change = attrs.BooleanAttr('can_change', label=_('Change'))
-    can_delete = attrs.BooleanAttr('can_delete', label=_('Delete'))
-
-
-class ObjectPermissionCustomActionsPanel(panels.ObjectPanel):
-    """
-    A panel which displays non-CRUD (custom) actions assigned to an ObjectPermission.
-    """
-    template_name = 'users/panels/custom_actions.html'
-    title = _('Custom Actions')
-
     def get_context(self, context):
         obj = context['object']
-        custom_actions = [a for a in obj.actions if a not in RESERVED_ACTIONS]
 
-        # Build a list of (action_name, model_labels) tuples from the registry,
-        # scoped to the object types assigned to this permission.
-        assigned_types = {
-            f'{ot.app_label}.{ot.model}' for ot in obj.object_types.all()
-        }
+        crud_actions = [
+            (_('View'), 'view' in obj.actions),
+            (_('Add'), 'add' in obj.actions),
+            (_('Change'), 'change' in obj.actions),
+            (_('Delete'), 'delete' in obj.actions),
+        ]
+
+        enabled_actions = set(obj.actions) - set(RESERVED_ACTIONS)
+
+        # Collect all registered actions from the full registry, deduplicating by name.
+        seen = []
+        seen_set = set()
         action_models = {}
         for model_key, model_actions in registry['model_actions'].items():
-            if model_key in assigned_types:
-                for action in model_actions:
-                    if action.name in custom_actions:
-                        action_models.setdefault(action.name, []).append(model_key)
+            for action in model_actions:
+                if action.name not in seen_set:
+                    seen.append(action.name)
+                    seen_set.add(action.name)
+                action_models.setdefault(action.name, []).append(model_key)
 
-        custom_actions_display = [
-            (action, ', '.join(action_models.get(action, [])))
-            for action in custom_actions
+        registered_display = [
+            (action, action in enabled_actions, ', '.join(sorted(action_models[action])))
+            for action in seen
         ]
 
         return {
             **super().get_context(context),
-            'custom_actions': custom_actions_display,
+            'crud_actions': crud_actions,
+            'registered_actions': registered_display,
         }
 
-    def render(self, context):
-        ctx = self.get_context(context)
-        if not ctx['custom_actions']:
-            return ''
-        return super().render(context)
-
 
 class OwnerPanel(panels.ObjectAttributesPanel):
     name = attrs.TextAttr('name')

netbox/users/views.py

@@ -272,7 +272,6 @@ class ObjectPermissionView(generic.ObjectView):
         left_panels=[
             panels.ObjectPermissionPanel(),
             panels.ObjectPermissionActionsPanel(),
-            panels.ObjectPermissionCustomActionsPanel(),
             JSONPanel('constraints', title=_('Constraints')),
         ],
         right_panels=[

netbox/utilities/forms/widgets/select.py

@@ -218,7 +218,7 @@ class ObjectTypeSelectedOptions(ObjectTypeSelectMultiple):
 
     def get_context(self, name, value, attrs):
         context = super().get_context(name, value, attrs)
-        context['widget']['attrs']['data-object-types-selected'] = True
+        context['widget']['attrs']['data-object-types-selected'] = 'true'
         return context