Minor fix.

src/blenderbim/blenderbim/bim/module/type/data.py

@@ -17,6 +17,8 @@
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
 
 import bpy
+import ifcopenshell.util.type
+import ifcopenshell.util.element
 import blenderbim.tool as tool
 
 
@@ -30,24 +32,55 @@ class TypeData:
 
     @classmethod
     def load(cls):
+        cls.is_loaded = True
         cls.data = {
             "relating_type_classes": cls.relating_type_classes(),
             "relating_types": cls.relating_types(),
+            "is_product": cls.is_product(),
+            "total_instances": cls.total_instances(),
+            "type_name": cls.type_name(),
         }
-        cls.is_loaded = True
 
     @classmethod
     def relating_type_classes(cls):
         results = []
-        element = tool.Ifc.get_entity(bpy.context.active_object)
+        obj = bpy.context.active_object
+        if not obj:
+            return
+        element = tool.Ifc.get_entity(obj)
+        if not element:
+            return []
         types = ifcopenshell.util.type.get_applicable_types(element.is_a(), schema=tool.Ifc.get_schema())
-        applicable_types_enum.extend((t, t, "") for t in types)
+        results.extend((t, t, "") for t in types)
         return results
 
     @classmethod
     def relating_types(cls):
+        relating_type_classes = cls.relating_type_classes()
+        if not relating_type_classes:
+            return []
         results = []
-        elements = tool.Ifc.get().by_type(bpy.context.active_object.BIMTypeProperties.relating_type_class)
+        relating_type_class = bpy.context.active_object.BIMTypeProperties.relating_type_class
+        if not relating_type_class and relating_type_classes:
+            relating_type_class = relating_type_classes[0][0]
+        elements = tool.Ifc.get().by_type(relating_type_class)
         elements = [(str(e.id()), e.Name, "") for e in elements]
-        relating_types_enum.extend(sorted(elements, key=lambda s: s[1]))
+        results.extend(sorted(elements, key=lambda s: s[1]))
         return results
+
+    @classmethod
+    def is_product(cls):
+        element = tool.Ifc.get_entity(bpy.context.active_object)
+        return element.is_a("IfcProduct")
+
+    @classmethod
+    def total_instances(cls):
+        element = tool.Ifc.get_entity(bpy.context.active_object)
+        return str(len(ifcopenshell.util.element.get_types(element)))
+
+    @classmethod
+    def type_name(cls):
+        element = tool.Ifc.get_entity(bpy.context.active_object)
+        type = ifcopenshell.util.element.get_type(element)
+        if type:
+            return f"{type.is_a()}/{type.Name or 'Unnamed'}"

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

@@ -46,11 +46,11 @@ def get_relating_type(self, context):
     return TypeData.data["relating_types"]
 
 
-def update_is_editing_type(self, context):
+def update_relating_type_class(self, context):
     TypeData.is_loaded = False
 
 
 class BIMTypeProperties(PropertyGroup):
-    is_editing_type: BoolProperty(name="Is Editing Type", update=update_is_editing_type)
-    relating_type_class: EnumProperty(items=get_relating_type_class, name="Relating Type Class")
+    is_editing_type: BoolProperty(name="Is Editing Type")
+    relating_type_class: EnumProperty(items=get_relating_type_class, name="Relating Type Class", update=update_relating_type_class)
     relating_type: EnumProperty(items=get_relating_type, name="Relating Type")

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

@@ -16,10 +16,11 @@
 # You should have received a copy of the GNU General Public License
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
 
+import blenderbim.tool as tool
 import blenderbim.bim.module.type.prop as type_prop
 from bpy.types import Panel
 from blenderbim.bim.ifc import IfcStore
-from ifcopenshell.api.type.data import Data
+from blenderbim.bim.module.type.data import TypeData
 
 
 class BIM_PT_type(Panel):
@@ -33,23 +34,20 @@ class BIM_PT_type(Panel):
     def poll(cls, context):
         if not context.active_object:
             return False
-        props = context.active_object.BIMObjectProperties
-        if not props.ifc_definition_id:
-            return False
-        if not IfcStore.get_element(props.ifc_definition_id):
-            return False
-        if props.ifc_definition_id not in Data.products and props.ifc_definition_id not in Data.types:
-            Data.load(IfcStore.get_file(), props.ifc_definition_id)
-        if props.ifc_definition_id not in Data.products and props.ifc_definition_id not in Data.types:
-            return False
-        if not Data.products.get(props.ifc_definition_id, None) and not Data.types.get(props.ifc_definition_id, None):
+        element = tool.Ifc.get_entity(context.active_object)
+        if not element:
             return False
+        if not element.is_a("IfcProduct") and not element.is_a("IfcTypeProduct"):
+            return True
         return True
 
     def draw(self, context):
+        if not TypeData.is_loaded:
+            TypeData.load()
+
         oprops = context.active_object.BIMObjectProperties
 
-        if oprops.ifc_definition_id in Data.products:
+        if TypeData.data["is_product"]:
             self.draw_product_ui(context)
         else:
             self.draw_type_ui(context)
@@ -58,7 +56,7 @@ class BIM_PT_type(Panel):
         props = context.active_object.BIMTypeProperties
         oprops = context.active_object.BIMObjectProperties
         row = self.layout.row(align=True)
-        row.label(text=f"{len(Data.types[oprops.ifc_definition_id])} Typed Objects")
+        row.label(text=f"{TypeData.data['total_instances']} Typed Objects")
         row.operator("bim.select_type_objects", icon="RESTRICT_SELECT_OFF", text="")
 
     def draw_product_ui(self, context):
@@ -69,7 +67,7 @@ class BIM_PT_type(Panel):
             row = self.layout.row(align=True)
 
             row.prop(props, "relating_type_class", text="")
-            if type_prop.get_object_relating_type(None, context):
+            if type_prop.get_relating_type(None, context):
                 row.prop(props, "relating_type", text="")
                 row.operator("bim.assign_type", icon="CHECKMARK", text="")
             else:
@@ -77,18 +75,15 @@ class BIM_PT_type(Panel):
             row.operator("bim.disable_editing_type", icon="CANCEL", text="")
         else:
             row = self.layout.row(align=True)
-            name = "{}/{}".format(
-                Data.products[oprops.ifc_definition_id]["type"], Data.products[oprops.ifc_definition_id]["Name"]
-            )
-            if name == "None/None":
-                row.label(text="This object has no type")
-                row.operator("bim.enable_editing_type", icon="GREASEPENCIL", text="")
-            else:
-                row.label(text=name)
+            if TypeData.data["type_name"]:
+                row.label(text=TypeData.data["type_name"])
                 row.operator("bim.select_type", icon="TRACKER", text="")
                 row.operator("bim.select_similar_type", icon="RESTRICT_SELECT_OFF", text="")
                 row.operator("bim.enable_editing_type", icon="GREASEPENCIL", text="")
                 row.operator("bim.unassign_type", icon="X", text="")
+            else:
+                row.label(text="This object has no type")
+                row.operator("bim.enable_editing_type", icon="GREASEPENCIL", text="")
 
 
 def add_object_button(self, context):

src/ifcopenshell-python/ifcopenshell/util/element.py

@@ -81,6 +81,8 @@ def get_type(element):
 def get_types(type):
     for rel in getattr(type, "Types", []):
         return rel.RelatedObjects
+    for rel in getattr(type, "ObjectTypeOf", []):
+        return rel.RelatedObjects
     return []
 
 

src/ifcopenshell-python/test/util/test_element.py

@@ -144,6 +144,14 @@ class TestGetTypes(test.bootstrap.IFC4):
         assert subject.get_types(element_type) == (element,)
 
 
+class TestGetTypesIFC2X3(test.bootstrap.IFC2X3):
+    def test_getting_the_type_of_a_product(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
+        element_type = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWallType")
+        ifcopenshell.api.run("type.assign_type", self.file, related_object=element, relating_type=element_type)
+        assert subject.get_types(element_type) == (element,)
+
+
 class TestGetMaterial(test.bootstrap.IFC4):
     def test_getting_the_material_of_a_product(self):
         element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")