policies: add bound count to api

authentik/policies/api.py

@@ -59,15 +59,22 @@ class PolicySerializer(ModelSerializer, MetaNameSerializer):
     _resolve_inheritance: bool
 
     object_type = SerializerMethodField()
+    bound_to = SerializerMethodField()
 
     def __init__(self, *args, resolve_inheritance: bool = True, **kwargs):
         super().__init__(*args, **kwargs)
         self._resolve_inheritance = resolve_inheritance
 
-    def get_object_type(self, obj):
+    def get_object_type(self, obj: Policy) -> str:
         """Get object type so that we know which API Endpoint to use to get the full object"""
         return obj._meta.object_name.lower().replace("policy", "")
 
+    def get_bound_to(self, obj: Policy) -> int:
+        """Return objects policy is bound to"""
+        if not obj.bindings.exists() and not obj.promptstage_set.exists():
+            return 0
+        return obj.bindings.count()
+
     def to_representation(self, instance: Policy):
         # pyright: reportGeneralTypeIssues=false
         if instance.__class__ == Policy or not self._resolve_inheritance:
@@ -86,6 +93,7 @@ class PolicySerializer(ModelSerializer, MetaNameSerializer):
             "object_type",
             "verbose_name",
             "verbose_name_plural",
+            "bound_to",
         ]
         depth = 3
 
@@ -101,7 +109,9 @@ class PolicyViewSet(ReadOnlyModelViewSet):
     }
 
     def get_queryset(self):
-        return Policy.objects.select_subclasses()
+        return Policy.objects.select_subclasses().prefetch_related(
+            "bindings", "promptstage_set"
+        )
 
     @swagger_auto_schema(responses={200: TypeCreateSerializer(many=True)})
     @action(detail=False)

swagger.yaml

@@ -8853,6 +8853,10 @@ definitions:
         title: Verbose name plural
         type: string
         readOnly: true
+      bound_to:
+        title: Bound to
+        type: integer
+        readOnly: true
   TypeCreate:
     description: Types of an object that can be created
     type: object
@@ -9254,6 +9258,10 @@ definitions:
         title: Verbose name plural
         type: string
         readOnly: true
+      bound_to:
+        title: Bound to
+        type: integer
+        readOnly: true
       result:
         title: Result
         type: boolean
@@ -9297,6 +9305,10 @@ definitions:
         title: Verbose name plural
         type: string
         readOnly: true
+      bound_to:
+        title: Bound to
+        type: integer
+        readOnly: true
       action:
         title: Action
         description: Match created events with this action type. When left empty,
@@ -9410,6 +9422,10 @@ definitions:
         title: Verbose name plural
         type: string
         readOnly: true
+      bound_to:
+        title: Bound to
+        type: integer
+        readOnly: true
       expression:
         title: Expression
         type: string
@@ -9444,6 +9460,10 @@ definitions:
         title: Verbose name plural
         type: string
         readOnly: true
+      bound_to:
+        title: Bound to
+        type: integer
+        readOnly: true
       group:
         title: Group
         type: string
@@ -9479,6 +9499,10 @@ definitions:
         title: Verbose name plural
         type: string
         readOnly: true
+      bound_to:
+        title: Bound to
+        type: integer
+        readOnly: true
       password_field:
         title: Password field
         description: Field key to check, field keys defined in Prompt stages are available.
@@ -9521,6 +9545,10 @@ definitions:
         title: Verbose name plural
         type: string
         readOnly: true
+      bound_to:
+        title: Bound to
+        type: integer
+        readOnly: true
       password_field:
         title: Password field
         description: Field key to check, field keys defined in Prompt stages are available.
@@ -9586,6 +9614,10 @@ definitions:
         title: Verbose name plural
         type: string
         readOnly: true
+      bound_to:
+        title: Bound to
+        type: integer
+        readOnly: true
       days:
         title: Days
         type: integer
@@ -9624,6 +9656,10 @@ definitions:
         title: Verbose name plural
         type: string
         readOnly: true
+      bound_to:
+        title: Bound to
+        type: integer
+        readOnly: true
       check_ip:
         title: Check ip
         type: boolean