See #3974. WIP review to ensure history removal in API.

src/ifcopenshell-python/ifcopenshell/api/material/assign_profile.py

@@ -111,6 +111,7 @@ class Usecase:
                             self.change_profile(element)
 
         if old_profile and len(self.file.get_inverse(old_profile)) == 0:
+            # TODO: check remove deep
             self.file.remove(old_profile)
 
     def change_profile(self, element):

src/ifcopenshell-python/ifcopenshell/api/material/remove_material.py

@@ -17,6 +17,7 @@
 # along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
 
 import ifcopenshell
+import ifcopenshell.util.element
 
 
 class Usecase:
@@ -59,7 +60,10 @@ class Usecase:
             elif inverse.is_a("IfcMaterialProfile"):
                 self.file.remove(inverse)
             elif inverse.is_a("IfcRelAssociatesMaterial"):
+                history = inverse.OwnerHistory
                 self.file.remove(inverse)
+                if history:
+                    ifcopenshell.util.element.remove_deep2(self.file, history)
             elif inverse.is_a("IfcMaterialProperties"):
                 for prop in inverse.Properties or []:
                     self.file.remove(prop)

src/ifcopenshell-python/ifcopenshell/api/material/remove_material_set.py

@@ -17,6 +17,7 @@
 # along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
 
 import ifcopenshell
+import ifcopenshell.util.element
 
 
 class Usecase:
@@ -73,7 +74,10 @@ class Usecase:
         self.file.remove(self.settings["material"])
         for inverse in inverse_elements:
             if inverse.is_a("IfcRelAssociatesMaterial"):
+                history = inverse.OwnerHistory
                 self.file.remove(inverse)
+                if history:
+                    ifcopenshell.util.element.remove_deep2(self.file, history)
             elif inverse.is_a("IfcMaterialProperties"):
                 for prop in inverse.Properties or []:
                     self.file.remove(prop)

src/ifcopenshell-python/ifcopenshell/api/material/remove_profile.py

@@ -17,6 +17,10 @@
 # along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
 
 
+import ifcopenshell
+import ifcopenshell.util.element
+
+
 class Usecase:
     def __init__(self, file, profile=None):
         """Removes a profile item from a profile set
@@ -65,5 +69,10 @@ class Usecase:
         self.settings = {"profile": profile}
 
     def execute(self):
+        subelements = set()
+        for attribute in self.settings["profile"]:
+            if isinstance(attribute, ifcopenshell.entity_instance):
+                subelements.add(attribute)
         self.file.remove(self.settings["profile"])
-        # TODO: deep purge
+        for subelement in subelements:
+            ifcopenshell.util.element.remove_deep2(self.file, subelement)

src/ifcopenshell-python/ifcopenshell/api/material/unassign_material.py

@@ -65,7 +65,10 @@ class Usecase:
                             continue
                         for inverse2 in self.file.get_inverse(inverse):
                             if inverse2.is_a("IfcRelAssociatesMaterial"):
+                                history = inverse2.OwnerHistory
                                 self.file.remove(inverse2)
+                                if history:
+                                    ifcopenshell.util.element.remove_deep2(self.file, history)
                     else:
                         if not inverse.is_a("IfcMaterialUsageDefinition"):
                             continue
@@ -80,7 +83,10 @@ class Usecase:
                     if self.file.get_total_inverses(rel.RelatingMaterial) == 1 and len(rel.RelatedObjects) == 1:
                         self.file.remove(rel.RelatingMaterial)
                 if len(rel.RelatedObjects) == 1:
+                    history = rel.OwnerHistory
                     self.file.remove(rel)
+                    if history:
+                        ifcopenshell.util.element.remove_deep2(self.file, history)
                     continue
                 related_objects = set(rel.RelatedObjects)
                 related_objects.remove(self.settings["product"])