WIP port reassign and unassign class to partial editing. See #1222.

src/ifccsv/ifccsv.py

@@ -4,6 +4,7 @@
 import ifcopenshell
 import ifcopenshell.util.selector
 import ifcopenshell.util.element
+import ifcopenshell.util.schema
 import csv
 import lark
 import argparse
@@ -13,7 +14,7 @@ class IfcAttributeExtractor:
     @staticmethod
     def set_element_key(ifc_file, element, key, value):
         if key == "type" and element.is_a() != value:
-            return IfcAttributeExtractor.change_ifc_class(ifc_file, element, value)
+            return ifcopenshell.util.schema.reassign_class(ifc_file, element, value)
         if hasattr(element, key):
             setattr(element, key, value)
             return element
@@ -32,24 +33,6 @@ class IfcAttributeExtractor:
             return element
         return element
 
-    @staticmethod
-    def change_ifc_class(ifc_file, element, new_class):
-        try:
-            new_element = ifc_file.create_entity(new_class)
-        except:
-            print(f"Class of {element} could not be changed to {new_class}")
-            return element
-        new_attributes = [new_element.attribute_name(i) for i, attribute in enumerate(new_element)]
-        for i, attribute in enumerate(element):
-            try:
-                new_element[new_attributes.index(element.attribute_name(i))] = attribute
-            except:
-                continue
-        for inverse in ifc_file.get_inverse(element):
-            ifcopenshell.util.element.replace_attribute(inverse, element, new_element)
-        ifc_file.remove(element)
-        return new_element
-
     @staticmethod
     def get_element_qto(element, name):
         for relationship in element.IsDefinedBy: