Parametric quantity breakdowns for cost items are now shown

src/blenderbim/blenderbim/bim/module/cost/operator.py

@@ -608,7 +608,7 @@ class SelectCostItemProducts(bpy.types.Operator):
 
     def execute(self, context):
         self.file = IfcStore.get_file()
-        related_products = Data.cost_items[self.cost_item]["Controls"]
+        related_products = Data.cost_items[self.cost_item]["Controls"].keys()
         for obj in context.visible_objects:
             obj.select_set(False)
             if obj.BIMObjectProperties.ifc_definition_id in related_products:
@@ -635,7 +635,7 @@ class SelectCostScheduleProducts(bpy.types.Operator):
         return {"FINISHED"}
 
     def get_related_products(self, cost_item):
-        self.related_products.extend(cost_item["Controls"])
+        self.related_products.extend(cost_item["Controls"].keys())
         for child_id in cost_item["IsNestedBy"]:
             self.get_related_products(Data.cost_items[child_id])
 
@@ -696,18 +696,21 @@ class LoadCostItemQuantities(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        print('EXECUTING')
         self.props = context.scene.BIMCostProperties
         self.file = IfcStore.get_file()
         while len(self.props.cost_item_products) > 0:
             self.props.cost_item_products.remove(0)
         ifc_definition_id = self.props.cost_items[self.props.active_cost_item_index].ifc_definition_id
-        for control in Data.cost_items[ifc_definition_id]["Controls"]:
-            related_object = self.file.by_id(control)
+        for control_id, quantity_ids in Data.cost_items[ifc_definition_id]["Controls"].items():
+            related_object = self.file.by_id(control_id)
             if related_object.is_a("IfcProduct"):
                 new = self.props.cost_item_products.add()
-                new.ifc_definition_id = control
+                new.ifc_definition_id = control_id
                 new.name = related_object.Name or "Unnamed"
+                total_quantity = 0
+                for quantity_id in quantity_ids:
+                    total_quantity += self.file.by_id(quantity_id)[3]
+                new.total_quantity = total_quantity
             elif related_object.is_a("IfcProduct"):
                 pass
             elif related_object.is_a("IfcResource"):

src/blenderbim/blenderbim/bim/module/cost/prop.py

@@ -99,6 +99,7 @@ class CostItem(PropertyGroup):
 class CostItemProduct(PropertyGroup):
     name: StringProperty(name="Name")
     ifc_definition_id: IntProperty(name="IFC Definition ID")
+    total_quantity: FloatProperty(name="Total Quantity")
 
 
 class BIMCostProperties(PropertyGroup):

src/blenderbim/blenderbim/bim/module/cost/ui.py

@@ -398,6 +398,7 @@ class BIM_UL_cost_item_products(UIList):
         if item:
             row = layout.row(align=True)
             row.prop(item, "name", emboss=False, text="")
+            row.label(text="{0:.2f}".format(item.total_quantity))
             op = row.operator("bim.unassign_cost_item_product", text="", icon="X")
             op.cost_item = cost_item.ifc_definition_id
             op.related_object = item.ifc_definition_id

src/ifcopenshell-python/ifcopenshell/api/cost/assign_cost_item_product.py

@@ -21,13 +21,11 @@ class Usecase:
         self.settings["cost_item"].CostQuantities = list(self.quantities)
 
     def add_quantity_from_related_object(self, element):
-        if element.is_a("IfcTypeObject"):
-            for definition in element.HasPropertySets or []:
-                self.add_quantity_from_qto(definition)
-        else:
-            for relationship in element.IsDefinedBy:
-                if relationship.is_a("IfcRelDefinesByProperties"):
-                    self.add_quantity_from_qto(relationship.RelatingPropertyDefinition)
+        if not element.is_a("IfcObject"):
+            return
+        for relationship in element.IsDefinedBy:
+            if relationship.is_a("IfcRelDefinesByProperties"):
+                self.add_quantity_from_qto(relationship.RelatingPropertyDefinition)
 
     def add_quantity_from_qto(self, qto):
         if not qto.is_a("IfcElementQuantity"):

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

@@ -51,21 +51,43 @@ class Data:
             del data["OwnerHistory"]
             del data["CostValues"]
             data["IsNestedBy"] = []
-            data["Controls"] = []
+            data["Controls"] = {}
             for rel in cost_item.IsNestedBy:
                 [data["IsNestedBy"].append(o.id()) for o in rel.RelatedObjects if o.is_a("IfcCostItem")]
+            parametric_quantities = []
             for rel in cost_item.Controls:
-                [data["Controls"].append(o.id()) for o in rel.RelatedObjects or []]
+                for related_object in rel.RelatedObjects or []:
+                    quantities = cls.get_object_quantities(cost_item, related_object)
+                    data["Controls"][related_object.id()] = quantities
+                    parametric_quantities.extend(quantities)
             cls.cost_items[cost_item.id()] = data
-            cls.load_cost_item_quantities(cost_item, data)
+            cls.load_cost_item_quantities(cost_item, data, parametric_quantities)
             cls.load_cost_item_values(cost_item, data)
         cls.is_loaded = True
 
     @classmethod
-    def load_cost_item_quantities(cls, cost_item, data):
+    def get_object_quantities(cls, cost_item, element):
+        if not element.is_a("IfcObject"):
+            return []
+        results = []
+        for relationship in element.IsDefinedBy:
+            if not relationship.is_a("IfcRelDefinesByProperties"):
+                continue
+            qto = relationship.RelatingPropertyDefinition
+            if not qto.is_a("IfcElementQuantity"):
+                continue
+            for prop in qto.Quantities:
+                if prop in cost_item.CostQuantities or []:
+                    results.append(prop.id())
+        return results
+
+    @classmethod
+    def load_cost_item_quantities(cls, cost_item, data, parametric_quantities):
         data["CostQuantities"] = []
         data["TotalCostQuantity"] = cls.get_total_quantity(cost_item)
         for quantity in cost_item.CostQuantities or []:
+            if quantity.id() in parametric_quantities:
+                continue
             quantity_data = quantity.get_info()
             del quantity_data["Unit"]
             cls.physical_quantities[quantity.id()] = quantity_data