Merge branch 'idc-test' of https://github.com/ImagingDataCommons/IDC-Common into idc-prod-sp

Author: s-paquette

idc_collections/collex_metadata_utils.py

@@ -578,6 +578,7 @@ def build_explorer_context(is_dicofdic, source, versions, filters, fields, order
                                                                            10)
                 if disk_size and 'total_instance_size' in source_metadata:
                     attr_by_source['totals']['disk_size'] = convert_disk_size(source_metadata['total_instance_size'])
+                    attr_by_source['totals']['disk_size_tb'] = source_metadata['total_instance_size']/math.pow(1000, 4)
 
                 context['file_parts_count'] = attr_by_source['totals']['file_parts_count']
                 context['display_file_parts_count'] = attr_by_source['totals']['display_file_parts_count']