Closes #10054: Implement advanced UI controls for object selection (#11952)

* WIP

* WIP

* WIP

* Make object selector functional

* Replace extraneous form fields with selector widgets

* Avoid overlap with filterset field names

* Show checkmarks next to visibile filters

* Update results automatically when searching

* Include selector for device/VM component parent fields

* Use selector for filtering VLAN group/site

* Limit selector to 100 results

netbox/utilities/forms/fields/dynamic.py

@@ -26,24 +26,38 @@ class DynamicModelChoiceMixin:
             choice (optional)
         fetch_trigger: The event type which will cause the select element to
             fetch data from the API. Must be 'load', 'open', or 'collapse'. (optional)
+        selector: Include an advanced object selection widget to assist the user in identifying the desired object
     """
     filter = django_filters.ModelChoiceFilter
     widget = widgets.APISelect
 
-    def __init__(self, query_params=None, initial_params=None, null_option=None, disabled_indicator=None,
-                 fetch_trigger=None, empty_label=None, *args, **kwargs):
+    def __init__(
+            self,
+            queryset,
+            *,
+            query_params=None,
+            initial_params=None,
+            null_option=None,
+            disabled_indicator=None,
+            fetch_trigger=None,
+            empty_label=None,
+            selector=False,
+            **kwargs
+    ):
+        self.model = queryset.model
         self.query_params = query_params or {}
         self.initial_params = initial_params or {}
         self.null_option = null_option
         self.disabled_indicator = disabled_indicator
         self.fetch_trigger = fetch_trigger
+        self.selector = selector
 
         # to_field_name is set by ModelChoiceField.__init__(), but we need to set it early for reference
         # by widget_attrs()
         self.to_field_name = kwargs.get('to_field_name')
         self.empty_option = empty_label or ""
 
-        super().__init__(*args, **kwargs)
+        super().__init__(queryset, **kwargs)
 
     def widget_attrs(self, widget):
         attrs = {
@@ -70,6 +84,10 @@ class DynamicModelChoiceMixin:
         if (len(self.query_params) > 0):
             widget.add_query_params(self.query_params)
 
+        # Include object selector?
+        if self.selector:
+            attrs['selector'] = self.model._meta.label_lower
+
         return attrs
 
     def get_bound_field(self, form, field_name):

netbox/utilities/forms/widgets.py

@@ -121,6 +121,7 @@ class APISelect(forms.Select):
 
     :param api_url: API endpoint URL. Required if not set automatically by the parent field.
     """
+    template_name = 'widgets/apiselect.html'
     option_template_name = 'widgets/select_option.html'
     dynamic_params: Dict[str, str]
     static_params: Dict[str, List[str]]