DATA: toahr TYPE toahr.
DATA: full_path type c LENGTH 255.
DATA: upernr TYPE pernr.
...
  SELECT SINGLE * FROM toahr
    INTO CORRESPONDING FIELDS OF toahr
    WHERE object_id  = upernr AND sap_object = 'PREL' AND archiv_id  = 'HR' AND
          ar_object  = 'HRIEMPFOTO'.
...

    CALL FUNCTION 'ALINK_DOCUMENTS_GET_CLIENT'
      EXPORTING
        "document_class          = 'JPG'
        archiv_doc_id           = toahr-arc_doc_id
        archiv_id               = toahr-archiv_id
        document_type           = toahr-ar_object
      IMPORTING
        retfilename             = full_path
      EXCEPTIONS
        error_contentrepository = 1
        OTHERS                  = 2.
...