Allow export of type relations in IFCCSV

src/ifcblenderexport/blenderbim/bim/import_ifc.py

@@ -2,6 +2,7 @@ import ifcopenshell
 import ifcopenshell.geom
 import ifcopenshell.util.geolocation
 import ifcopenshell.util.selector
+import ifcopenshell.util.element
 import bpy
 import bmesh
 import os
@@ -1272,19 +1273,10 @@ class IfcImporter():
                     new_prop.string_value = str(value)
 
     def add_defines_by_type_relation(self, element, obj):
-        related_type = self.get_type(element)
+        related_type = ifcopenshell.util.element.get_type(element)
         if related_type:
             obj.BIMObjectProperties.relating_type = self.type_products[related_type.GlobalId]
 
-    # TODO: migrate into util function
-    def get_type(self, element):
-        if hasattr(element, 'IsTypedBy') and element.IsTypedBy:
-            return element.IsTypedBy[0].RelatingType
-        elif hasattr(element, 'IsDefinedBy') and element.IsDefinedBy: # IFC2X3
-            for relationship in element.IsDefinedBy:
-                if relationship.is_a('IfcRelDefinesByType'):
-                    return relationship.RelatingType
-
     def add_opening_relation(self, element, obj):
         if not element.is_a('IfcOpeningElement'):
             return

src/ifcblenderexport/blenderbim/bim/operator.py

@@ -5,6 +5,7 @@ import json
 import logging
 import webbrowser
 import ifcopenshell
+import ifcopenshell.util.selector
 import tempfile
 from . import export_ifc
 from . import import_ifc
@@ -2896,14 +2897,14 @@ class ExportIfcCsv(bpy.types.Operator):
     def execute(self, context):
         import ifccsv
         self.filepath = bpy.path.ensure_ext(self.filepath, '.csv')
-        ifc_selector_parser = ifccsv.IfcSelectorParser()
-        ifc_selector_parser.ifc = bpy.context.scene.BIMProperties.ifc_file
-        ifc_selector_parser.query = bpy.context.scene.BIMProperties.ifc_selector
-        ifc_selector_parser.parse()
+        ifc_file = ifcopenshell.open(bpy.context.scene.BIMProperties.ifc_file)
+        selector = ifcopenshell.util.selector.Selector()
+        results = selector.parse(ifc_file, bpy.context.scene.BIMProperties.ifc_selector)
         ifc_csv = ifccsv.IfcCsv()
         ifc_csv.output = self.filepath
         ifc_csv.attributes = [a.name for a in bpy.context.scene.BIMProperties.csv_attributes]
-        ifc_csv.export(ifc_selector_parser.file, ifc_selector_parser.results)
+        ifc_csv.selector = selector
+        ifc_csv.export(ifc_file, results)
         return {'FINISHED'}