add_schema_org - Twig Function

With this function you can add JSON-LD metadata to the current page. The function takes an array containing Schema.org data such as:

[
    '@type' => 'Event',
    'identifier' => '#/schema/events/123',
    'name' => 'Foobar',
    'startDate' => '2025-04-22T12:12:12P',
]

The above example uses the Event Schema.org Type. Using Twig’s do tag you could do:

{% do add_schema_org({
    '@type': 'Events',
    'identifier' => '#/schema/events/' ~ id,
    'name' => title,
    'startDate' => startTime|date('Y-m-d\TH:i:sP'),
}) %}

Though typically you will want your controller to prepare said data.

When it comes to files Contao can automatically generate the appropriate JSON-LD metadata for your. For this the classes FilesystemItem from the virtual file system, the legacy FilesModel as well as the Figure classes have appropriate getters for that.

{# Add metadata from a FilesystemItem #}
{% do add_schema_org(file.schemaOrgData|default) %}

{# Add metadata from a Figure #}
{% do add_schema_org(figure.schemaOrgData|default) %}

Arguments

• jsonLd: An array containing JSON-LD metadata.