Feature to Add Crew Resources and SubContract Resources with the ifcopenshell.api and blenderB

src/ifcopenshell-python/ifcopenshell/api/resource/add_crew_resource.py

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+import ifcopenshell.api
+import ifcopenshell.util.date
+from datetime import datetime
+
+
+class Usecase:
+    def __init__(self, file, **settings):
+        self.file = file
+        self.settings = {
+            "name": "Unnamed",
+            "predefined_type": "NOTDEFINED",
+        }
+        for key, value in settings.items():
+            self.settings[key] = value
+
+    def execute(self):
+        crew_resource = ifcopenshell.api.run(
+            "root.create_entity",
+            self.file,
+            ifc_class="IfcCrewResource",
+            predefined_type=self.settings["predefined_type"],
+            name=self.settings["name"],
+        )
+        # TODO: this is an ambiguity by buildingSMART: Can we nest and IfcCrewResource under an ifcCrewResource ?
+        # See https://forums.buildingsmart.org/t/is-the-ifcCrewResource-project-declaration-mutually-exclusive-to-aggregation-within-a-relating-ifcworkplan/3510
+        context = self.file.by_type("IfcContext")[0]
+        ifcopenshell.api.run(
+            "project.assign_declaration", self.file, definition=crew_resource, relating_context=context
+        )
+        return crew_resource

src/ifcopenshell-python/ifcopenshell/api/resource/add_subcontract_resource.py

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+import ifcopenshell.api
+import ifcopenshell.util.date
+from datetime import datetime
+
+
+class Usecase:
+    def __init__(self, file, **settings):
+        self.file = file
+        self.settings = {
+            "name": "Unnamed",
+            "predefined_type": "NOTDEFINED",
+        }
+        for key, value in settings.items():
+            self.settings[key] = value
+
+    def execute(self):
+        subcontract_resource = ifcopenshell.api.run(
+            "root.create_entity",
+            self.file,
+            ifc_class="IfcSubContractResource",
+            predefined_type=self.settings["predefined_type"],
+            name=self.settings["name"],
+        )
+        # TODO: this is an ambiguity by buildingSMART: Can we nest and IfcCrewResource under an ifcCrewResource ?
+        # See https://forums.buildingsmart.org/t/is-the-ifcCrewResource-project-declaration-mutually-exclusive-to-aggregation-within-a-relating-ifcworkplan/3510
+        context = self.file.by_type("IfcContext")[0]
+        ifcopenshell.api.run(
+            "project.assign_declaration", self.file, definition=subcontract_resource, relating_context=context
+        )
+        return subcontract_resource

src/ifcopenshell-python/ifcopenshell/api/resource/assign_resource.py

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+import ifcopenshell
+import ifcopenshell.api
+
+
+class Usecase:
+    def __init__(self, file, **settings):
+        self.file = file
+        self.settings = {
+            "relating_resource": None,
+            "related_object": None,
+        }
+        for key, value in settings.items():
+            self.settings[key] = value
+
+    def execute(self):
+        if self.settings["related_object"].HasAssignments:
+            for assignment in self.settings["related_object"].HasAssignments:
+                if (
+                    assignment.is_a("IfclRelAssignsToResource")
+                    and assignment.RelatingResource == self.settings["relating_resource"]
+                ):
+                    return
+
+        referenced_by = None
+        if self.settings["relating_resource"].ResourceOf:
+            referenced_by = self.settings["relating_resource"].ResourceOf[0]
+
+        if referenced_by:
+            related_objects = list(referenced_by.RelatedObjects)
+            related_objects.append(self.settings["related_object"])
+            referenced_by.RelatedObjects = related_objects
+            ifcopenshell.api.run("owner.update_owner_history", self.file, **{"element": referenced_by})
+        else:
+            referenced_by = self.file.create_entity(
+                "IfcRelAssignsToResource",
+                **{
+                    "GlobalId": ifcopenshell.guid.new(),
+                    "OwnerHistory": ifcopenshell.api.run("owner.create_owner_history", self.file),
+                    "RelatedObjects": [self.settings["related_object"]],
+                    "RelatingProduct": self.settings["relating_resource"],
+                }
+            )
+        return referenced_by

src/ifcopenshell-python/ifcopenshell/api/resource/data.py

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+import ifcopenshell.api
+
+
+class Data:
+    is_loaded = False
+    resources = {}
+
+    @classmethod
+    def purge(cls):
+        cls.resources = {}
+
+    @classmethod
+    def load(cls, file):
+        cls.resources = {}
+        for resource in file.by_type("IfcResource"):
+            data = resource.get_info()
+            del data["OwnerHistory"]
+            data["RelatedObjects"] = []
+            for rel in resource.IsNestedBy:
+                [data["RelatedObjects"].append(o.id()) for o in rel.RelatedObjects if o.is_a("IfcCrewResource") or o.is_a("IfcsubcontractResource")]
+            cls.resources[resource.id()] = data
+
+        cls.is_loaded=True

src/ifcopenshell-python/ifcopenshell/api/resource/remove_resource.py

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+class Usecase:
+    def __init__(self, file, **settings):
+        self.file = file
+        self.settings = {"resource": None}
+        for key, value in settings.items():
+            self.settings[key] = value
+
+    def execute(self):
+        # TODO: do a deep purge
+        self.file.remove(self.settings["resource"])