Fix bug where imported types with representations but no instances were not fully linked.

src/blenderbim/blenderbim/bim/import_ifc.py

@@ -527,6 +527,7 @@ class IfcImporter:
                 try:
                     shape = ifcopenshell.geom.create_shape(self.settings, representation_map.MappedRepresentation)
                     mesh = self.create_mesh(element, shape)
+                    self.link_mesh(shape, mesh)
                     self.meshes[mesh_name] = mesh
                 except:
                     self.ifc_import_settings.logger.error("Failed to generate shape for %s", element)
@@ -729,10 +730,7 @@ class IfcImporter:
             mesh = self.meshes.get(mesh_name)
             if mesh is None:
                 mesh = self.create_mesh(element, shape)
-                if "-" in shape.geometry.id:
-                    mesh.BIMMeshProperties.ifc_definition_id = int(shape.geometry.id.split("-")[0])
-                else:
-                    mesh.BIMMeshProperties.ifc_definition_id = int(shape.geometry.id)
+                self.link_mesh(shape, mesh)
                 self.meshes[mesh_name] = mesh
         else:
             mesh = None
@@ -1422,6 +1420,16 @@ class IfcImporter:
         self.added_data[element.id()] = obj
         IfcStore.link_element(element, obj)
 
+    def link_mesh(self, shape, mesh):
+        if hasattr(shape, "geometry"):
+            geometry = shape.geometry
+        else:
+            geometry = shape
+        if "-" in geometry.id:
+            mesh.BIMMeshProperties.ifc_definition_id = int(geometry.id.split("-")[0])
+        else:
+            mesh.BIMMeshProperties.ifc_definition_id = int(geometry.id)
+
 
 class IfcImportSettings:
     def __init__(self):

src/blenderbim/test/bim/feature/project.feature

@@ -92,6 +92,11 @@ Scenario: Load project elements - load all project elements
     And the object "IfcBeam/Beam" is in the collection "IfcElementAssembly/Empty"
     And the object "IfcSlab/Slab" is in the collection "IfcBuildingStorey/Ground Floor"
     And the object "IfcWall/Wall" is in the collection "IfcBuildingStorey/Level 1"
+    And the object "IfcSlab/Slab" has data which is an IFC representation
+    And the object "IfcBeam/Beam" has data which is an IFC representation
+    And the object "IfcWall/Wall" has data which is an IFC representation
+    And the object "IfcSlabType/Slab" has data which is an IFC representation
+    And the object "IfcWallType/Wall" has data which is an IFC representation
     And "scene.BIMProjectProperties.is_loading" is "False"
 
 Scenario: Load project elements - load objects filtered by decomposition

src/blenderbim/test/bim/test_feature.py

@@ -321,6 +321,12 @@ def the_object_name_is_not_an_ifc_element(name):
     assert id == 0, f"The ID is {id}"
 
 
+@then(parsers.parse('the object "{name}" has data which is an IFC representation'))
+def the_object_name_is_not_an_ifc_element(name):
+    id = the_object_name_exists(name).data.BIMMeshProperties.ifc_definition_id
+    assert id != 0, f"The ID is {id}"
+
+
 @then(parsers.parse('the material "{name}" is not an IFC material'))
 def the_material_name_is_not_an_ifc_material(name):
     id = the_material_name_exists(name).BIMObjectProperties.ifc_definition_id