scripts-blender/addons/anim_cupboard/operators/id_management_ops.py

@@ -6,6 +6,7 @@ from bpy_extras import id_map_utils
 
 import os
 from ..utils import hotkeys
+from .relink_overridden_asset import OUTLINER_OT_relink_overridden_asset
 
 
 class RelationshipOperatorMixin:
@@ -61,6 +62,11 @@ class RelationshipOperatorMixin:
 
         layout.separator()
 
+        datablocks = self.get_datablocks_to_display(datablock)
+        if not datablocks:
+            layout.label(text="There are none.")
+            return
+
         for user in self.get_datablocks_to_display(datablock):
             if user == datablock:
                 # Scenes are users of themself for technical reasons,
@@ -226,18 +232,23 @@ class IDMAN_MT_relationship_pie(bpy.types.Menu):
         # >
         pie.operator(
             OUTLINER_OT_list_dependencies_of_datablock.bl_idname, icon='LOOP_FORWARDS')
-        # ^
-        pie.operator('outliner.better_purge', icon='TRASH')
         # V
+        pie.operator('outliner.better_purge', icon='TRASH')
+        # ^
+
         pie.operator('outliner.id_operation', icon='FILE_REFRESH',
                      text="Remap Users").type = 'REMAP'
 
-        # <V
-        pie.operator('object.relink_overridden_asset',
-                     icon='LIBRARY_DATA_OVERRIDE')
+        # ^>
+        id = OUTLINER_OT_relink_overridden_asset.get_id(context)
+        if id:
+            pie.operator('object.relink_overridden_asset',
+                        icon='LIBRARY_DATA_OVERRIDE')
 
-        pie.operator('outliner.liboverride_troubleshoot_operation', icon='UV_SYNC_SELECT',
-                     text="Resync Override Hierarchy").type = 'OVERRIDE_LIBRARY_RESYNC_HIERARCHY_ENFORCE'
+        # <^
+        if id and id.override_library:
+            pie.operator('outliner.liboverride_troubleshoot_operation', icon='UV_SYNC_SELECT',
+                        text="Resync Override Hierarchy").type = 'OVERRIDE_LIBRARY_RESYNC_HIERARCHY_ENFORCE'
 
 
 registry = [