Fix #2529. Bulk copying decomposed elements to multiple storeys now maintains decomposition.

src/blenderbim/blenderbim/bim/module/geometry/operator.py

@@ -547,7 +547,7 @@ class OverrideDuplicateMove(bpy.types.Operator):
             # Copy the actual class
             new = blenderbim.core.root.copy_class(tool.Ifc, tool.Collector, tool.Geometry, tool.Root, obj=new_obj)
             if new:
-                old_to_new[tool.Ifc.get_entity(obj)] = new
+                old_to_new[tool.Ifc.get_entity(obj)] = [new]
         # Recreate decompositions
         tool.Root.recreate_decompositions(relationships, old_to_new)
         bpy.ops.transform.translate("INVOKE_DEFAULT")

src/blenderbim/blenderbim/bim/module/spatial/operator.py

@@ -131,9 +131,16 @@ class CopyToContainer(bpy.types.Operator, tool.Ifc.Operator):
 
     def _execute(self, context):
         sprops = context.scene.BIMSpatialProperties
+        # Track decompositions so they can be recreated after the operation
+        relationships = tool.Root.get_decomposition_relationships(context.selected_objects)
+        old_to_new = {}
         containers = [tool.Ifc.get().by_id(c.ifc_definition_id) for c in sprops.containers if c.is_selected]
         for obj in context.selected_objects:
-            core.copy_to_container(tool.Ifc, tool.Spatial, obj=obj, containers=containers)
+            result_objs = core.copy_to_container(tool.Ifc, tool.Spatial, obj=obj, containers=containers)
+            if result_objs:
+                old_to_new[tool.Ifc.get_entity(obj)] = result_objs
+        # Recreate decompositions
+        tool.Root.recreate_decompositions(relationships, old_to_new)
         blenderbim.bim.handler.purge_module_data()
 
 

src/blenderbim/blenderbim/core/spatial.py

@@ -69,13 +69,15 @@ def copy_to_container(ifc, spatial, obj=None, containers=None):
         matrix = spatial.get_relative_object_matrix(obj, ifc.get_object(from_container))
     else:
         matrix = spatial.get_object_matrix(obj)
+    result_objs = []
     for to_container in containers:
         to_container_obj = ifc.get_object(to_container)
         copied_obj = spatial.duplicate_object_and_data(obj)
         spatial.set_relative_object_matrix(copied_obj, to_container_obj, matrix)
-        spatial.run_root_copy_class(obj=copied_obj)
+        result_objs.append(spatial.run_root_copy_class(obj=copied_obj))
         spatial.run_spatial_assign_container(structure_obj=to_container_obj, element_obj=copied_obj)
     spatial.disable_editing(obj)
+    return result_objs
 
 
 def select_container(ifc, spatial, obj=None):

src/blenderbim/blenderbim/tool/root.py

@@ -106,14 +106,16 @@ class Root(blenderbim.core.tool.Root):
     @classmethod
     def recreate_decompositions(cls, relationships, old_to_new):
         for subelement, data in relationships.items():
-            subelement = old_to_new.get(subelement)
-            element = old_to_new.get(data["element"])
-            if not subelement or not element:
+            new_subelements = old_to_new.get(subelement)
+            new_elements = old_to_new.get(data["element"])
+            if not new_subelements or not new_elements:
                 continue
-            if data["type"] == "fill":
-                obj1 = tool.Ifc.get_object(element)
-                obj2 = tool.Ifc.get_object(subelement)
-                bpy.ops.bim.add_filled_opening(voided_obj=obj1.name, filling_obj=obj2.name)
+            for i, new_subelement in enumerate(new_subelements):
+                new_element = new_elements[i]
+                if data["type"] == "fill":
+                    obj1 = tool.Ifc.get_object(new_element)
+                    obj2 = tool.Ifc.get_object(new_subelement)
+                    bpy.ops.bim.add_filled_opening(voided_obj=obj1.name, filling_obj=obj2.name)
 
     @classmethod
     def run_geometry_add_representation(