helpers# get_metax_identifiers_by_pid# Source code in src/apps/core/helpers.py 6 7 8def get_metax_identifiers_by_pid(identifier): pid = clean_pid(identifier) return Dataset.available_objects.filter(persistent_identifier=pid).values_list("id", flat=True) clean_pid# Source code in src/apps/core/helpers.py 11 12 13 14def clean_pid(pid_string): doi_replaced = re.sub("^https://doi.org/", "doi:", pid_string) urn_removed = re.sub("^http://urn.fi/", "", doi_replaced) return urn_removed