Add AuthoringData.data["relating_type_id_current"] to model data.

src/bonsai/bonsai/bim/module/model/data.py

@@ -58,6 +58,7 @@ class AuthoringData:
         cls.data["ifc_classes"] = cls.ifc_classes()
         cls.data["ifc_class_current"] = cls.ifc_class_current()
         cls.data["relating_type_id"] = cls.relating_type_id()  # only after .ifc_classes()
+        cls.data["relating_type_id_current"] = cls.relating_type_id_current()  # only after .ifc_classes()
         cls.data["relating_type_name"] = cls.relating_type_name()  # only after .relating_type_id()
         cls.data["relating_type_description"] = cls.relating_type_description()  # only after .relating_type_id()
         cls.data["predefined_type"] = cls.predefined_type()  # only after .relating_type_id()
@@ -248,17 +249,21 @@ class AuthoringData:
         return []
 
     @classmethod 
-    def relating_type_name(cls):
+    def relating_type_id_current(cls):
         relating_type_id = tool.Blender.get_enum_safe(cls.props, "relating_type_id")
         relating_type_id_data = cls.data["relating_type_id"]
         if not relating_type_id and relating_type_id_data:
             relating_type_id = relating_type_id_data[0][0]
-        if relating_type_id:
+        return relating_type_id
+
+    @classmethod
+    def relating_type_name(cls):
+        if relating_type_id := cls.data["relating_type_id_current"]:
             return tool.Ifc.get().by_id(int(relating_type_id)).Name or "Unnamed"
 
     @classmethod
     def relating_type_description(cls):
-        if relating_type_id := cls.props.relating_type_id:
+        if relating_type_id := cls.data["relating_type_id_current"]:
             return tool.Ifc.get().by_id(int(relating_type_id)).Description or "No description"
 
     @classmethod

src/bonsai/bonsai/bim/module/model/workspace.py

@@ -936,18 +936,18 @@ class Hotkey(bpy.types.Operator, tool.Ifc.Operator):
 
     def hotkey_S_A(self):
         props = bpy.context.scene.BIMModelProperties
+        relating_type_id = AuthoringData.data["relating_type_id_current"]
+        props.relating_type_id = relating_type_id
         if bpy.context.scene.BIMGeometryProperties.mode == "ITEM":
             bpy.ops.wm.call_menu(name="BIM_MT_add_representation_item")
         else:
             for obj in tool.Blender.get_selected_objects():
                 obj.select_set(False)
-            if (
+            if relating_type_id and tool.Model.get_usage_type(tool.Ifc.get().by_id(int(relating_type_id))) == "LAYER2":
-                relating_type_id := tool.Blender.get_enum_safe(props, "relating_type_id")
-            ) and tool.Model.get_usage_type(tool.Ifc.get().by_id(int(relating_type_id))) == "LAYER2":
                 bpy.ops.bim.draw_polyline_wall("INVOKE_DEFAULT")
             elif (
-                relating_type_id := tool.Blender.get_enum_safe(props, "relating_type_id")
+                relating_type_id and tool.Model.get_usage_type(tool.Ifc.get().by_id(int(relating_type_id))) == "LAYER3"
-            ) and tool.Model.get_usage_type(tool.Ifc.get().by_id(int(relating_type_id))) == "LAYER3":
+            ):
                 bpy.ops.bim.draw_polyline_slab("INVOKE_DEFAULT")
             else:
                 bpy.ops.bim.add_occurrence("INVOKE_DEFAULT")