First Commit

2026-05-31 10:17:09 +07:00
commit 17a9c69379
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+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of IfcOpenShell.
+#
+# IfcOpenShell is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# IfcOpenShell is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
+
+from typing import Union
+
+import ifcopenshell
+import ifcopenshell.api.nest
+import ifcopenshell.util.element
+
+
+def copy_cost_item(
+    file: ifcopenshell.file, cost_item: ifcopenshell.entity_instance
+) -> Union[ifcopenshell.entity_instance, list[ifcopenshell.entity_instance]]:
+    """Copies all cost items and related relationships
+
+    The following relationships are also duplicated:
+
+    * The copy will have the same attributes and property sets as the original cost item
+    * The copy will be assigned to the parent cost schedule
+    * The copy will have duplicated nested cost items
+
+    :param cost_item: The cost item to be duplicated
+    :return: The duplicated cost item or the list of duplicated cost items if the latter has children
+
+    Example:
+    .. code:: python
+
+        # We have a cost item
+        cost_item = CostItem(name="Design new feature", deadline="2023-03-01")
+
+        # And now we have two
+        duplicated_cost_item = project.duplicate_cost_item(cost_item)
+
+
+    """
+    usecase = Usecase()
+    usecase.file = file
+    return usecase.execute(cost_item)
+
+
+class Usecase:
+    file: ifcopenshell.file
+    new_cost_items: list[ifcopenshell.entity_instance]
+
+    def execute(
+        self, cost_item: ifcopenshell.entity_instance
+    ) -> Union[ifcopenshell.entity_instance, list[ifcopenshell.entity_instance]]:
+        self.new_cost_items = []
+        self.duplicate_cost_item(cost_item)
+        return self.new_cost_items[0] if len(self.new_cost_items) == 1 else self.new_cost_items
+
+    def duplicate_cost_item(self, cost_item: ifcopenshell.entity_instance) -> ifcopenshell.entity_instance:
+        new_cost_item = ifcopenshell.util.element.copy_deep(self.file, cost_item)
+        self.new_cost_items.append(new_cost_item)
+        self.copy_indirect_attributes(cost_item, new_cost_item)
+        return new_cost_item
+
+    def copy_indirect_attributes(
+        self, from_element: ifcopenshell.entity_instance, to_element: ifcopenshell.entity_instance
+    ) -> None:
+        for inverse in self.file.get_inverse(from_element):
+            if inverse.is_a("IfcRelDefinesByProperties"):
+                inverse = ifcopenshell.util.element.copy(self.file, inverse)
+                inverse.RelatedObjects = [to_element]
+                pset = ifcopenshell.util.element.copy_deep(self.file, inverse.RelatingPropertyDefinition)
+                inverse.RelatingPropertyDefinition = pset
+            elif inverse.is_a("IfcRelNests") and inverse.RelatingObject == from_element:
+                nested_cost_items = [e for e in inverse.RelatedObjects]
+                if nested_cost_items:
+                    new_cost_items = []
+                    for cost_item in nested_cost_items:
+                        new_cost_item = self.duplicate_cost_item(cost_item)
+                        new_cost_items.append(new_cost_item)
+                    inverse = ifcopenshell.util.element.copy(self.file, inverse)
+                    inverse.RelatingObject = to_element
+                    inverse.RelatedObjects = new_cost_items
+                    ifcopenshell.api.nest.unassign_object(self.file, related_objects=new_cost_items)
+                    ifcopenshell.api.nest.assign_object(
+                        self.file, related_objects=new_cost_items, relating_object=to_element
+                    )
+            # elif inverse.is_a("IfcRelAssignsToProduct"):
+            #     continue
+            #     to_element.IsDefinedBy = inverse.RelatingOrder
+            # elif inverse.is_a("IfcRelAssignsToProcess"):
+            #     to_element.IsDefinedBy = inverse.RelatingProcess
+            # elif inverse.is_a("IfcRelAssignsToResource"):
+            #     continue
+            # elif inverse.is_a("IfcRelAssignsToControl"):
+            #     continue
+            # elif inverse.is_a("IfcRelDefinesByObject"):
+            #     continue
+            else:
+                for i, value in enumerate(inverse):
+                    if value == from_element:
+                        new_inverse = ifcopenshell.util.element.copy(self.file, inverse)
+                        new_inverse[i] = to_element
+                    elif isinstance(value, (tuple, list)) and from_element in value:
+                        new_value = list(value)
+                        new_value.append(to_element)
+                        inverse[i] = new_value