64 lines
2.5 KiB
Python
64 lines
2.5 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
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#
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# This file is part of IfcOpenShell.
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#
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# IfcOpenShell is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# IfcOpenShell is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
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import ifcopenshell
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import ifcopenshell.api.cost
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import ifcopenshell.util.element
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def remove_cost_item(file: ifcopenshell.file, cost_item: ifcopenshell.entity_instance) -> None:
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"""Removes a cost item
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All associated relationships with the cost item are also removed,
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however the related resources, products, and tasks themselves are
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retained.
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:param cost_item: The IfcCostItem entity you want to remove
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:return: None
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Example:
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.. code:: python
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schedule = ifcopenshell.api.cost.add_cost_schedule(model)
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item = ifcopenshell.api.cost.add_cost_item(model, cost_schedule=schedule)
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ifcopenshell.api.cost.remove_cost_item(model, cost_item=item)
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"""
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# TODO: do a deep purge
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for inverse in file.get_inverse(cost_item):
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if inverse.is_a("IfcRelNests"):
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if inverse.RelatingObject == cost_item:
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for related_object in inverse.RelatedObjects:
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ifcopenshell.api.cost.remove_cost_item(file, cost_item=related_object)
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elif inverse.RelatedObjects == (cost_item,):
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history = inverse.OwnerHistory
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file.remove(inverse)
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if history:
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ifcopenshell.util.element.remove_deep2(file, history)
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elif inverse.is_a("IfcRelAssignsToControl"):
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if len(inverse.RelatedObjects) >= 2 or inverse.RelatingControl == cost_item:
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continue
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history = inverse.OwnerHistory
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file.remove(inverse)
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if history:
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ifcopenshell.util.element.remove_deep2(file, history)
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history = cost_item.OwnerHistory
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file.remove(cost_item)
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if history:
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ifcopenshell.util.element.remove_deep2(file, history)
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