Feature to enable assigning Construction Resources to Tasks

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

@@ -19,7 +19,7 @@ class Usecase:
             self.file,
             ifc_class=self.settings["ifc_class"],
             predefined_type=self.settings["predefined_type"],
-            name=self.settings["name"],
+            name=self.settings["name"] or "Unammed",
         )
         # TODO: this is an ambiguity by buildingSMART: Can we nest an IfcCrewResource under an IfcCrewResource ?
         # https://forums.buildingsmart.org/t/what-are-allowed-to-be-root-level-construction-resources/3550

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

@@ -4,20 +4,31 @@ class Data:
 
     @classmethod
     def purge(cls):
+        cls.is_loaded = False
         cls.resources = {}
 
     @classmethod
     def load(cls, file):
+        cls._file = file
+        if not cls._file:
+            return
+        cls.load_resources()
+        cls.is_loaded=True
+
+    @classmethod
+    def load_resources(cls):
         cls.resources = {}
-        for resource in file.by_type("IfcResource"):
+        for resource in cls._file.by_type("IfcResource"):
             data = resource.get_info()
             del data["OwnerHistory"]
             data["IsNestedBy"] = []
             for rel in resource.IsNestedBy:
                 [data["IsNestedBy"].append(o.id()) for o in rel.RelatedObjects]
+            data["Nests"] = []
+            for rel in resource.Nests:
+                [data["Nests"].append(rel.RelatingObject.id())]
             data["ResourceOf"] = []
             for rel in resource.ResourceOf:
                 [data["ResourceOf"].append(o.id()) for o in rel.RelatedObjects]
             data["HasContext"] = resource.HasContext[0].RelatingContext.id() if resource.HasContext else None
             cls.resources[resource.id()] = data
-        cls.is_loaded=True