fixed books on shelf BUG-16 - author missing, its now using ORM with a HACK to remove subs not via ORM, and I also fixed datatable sorting by author for books on shelf via a param past into base.html

templates/base.html

@@ -122,7 +122,12 @@
 	<script src="https://cdn.datatables.net/1.10.22/js/dataTables.bootstrap4.min.js"></script>
 	<script>
 	$(document).ready(function() { 
-		$('#book_table').DataTable( { 'pageLength': 20, 'lengthMenu': [[10, 20, 50, -1], [10, 20, 50, "All"]] } );
+	    {% if 'Author(s)' in order_by %}
+			{% set o = "'order': [[ 1, 'asc' ]]," %}
+		{% else %}
+			{% set o = "" %}
+		{% endif %}
+		document.bookdb_dt = $('#book_table').DataTable( { 'pageLength': 20, {{o|safe}} 'lengthMenu': [[10, 20, 50, -1], [10, 20, 50, "All"]] } );
 	} );
 	</script>
 	{%block script_content %}{% endblock script_content %}