ngclasslist: a datatype that stores a list of content classes #

This page is for site builders who let editors choose which kinds of content a page lists. ngclasslist (Netgen Class List Datatype) lets an editor select a list of content classes and stores it on an attribute.

Example: a category that lists chosen classes #

1. Add an attribute of type ngclasslist to the Category class, here with the identifier class_filter_array.
2. In the category, select the classes to list.
3. Fetch the children in the category's template with the selected classes as filter:

{def $children = fetch(
    'content', 'list',
    hash(
        'parent_node_id', $node.data_map.parent_node_id.content,
        'class_filter_type', $node.data_map.class_filter_type.content,
        'class_filter_array', $node.data_map.class_filter_array.content.class_identifiers
    )
)}

What changed #

Related pages #

• Extension metadata specification
• Chronicle and release notes
• Change ledger
• Behaviour changes of the extensions
• Months: 2026-08, 2026-09, 2026-10 (all extensions)