WPSSO – New Caching Control Options

WPSSO version 3.37.0-2 has been released, along with updates to all its extensions. This latest WPSSO version includes several new options to fine-tune WPSSO’s internal caching features. The previous “Object Cache Expiry” option has been replaced with 7 new options:

Head Markup Array Cache Expiry (default 3 days).
Shortened URL Cache Expiry (default 1 week).
List Column Content Cache Expiry (default 1 week).
Filtered Content Text Cache Expiry (default 1 hour).
Get Image (URL) Size Cache Expiry (default 1 day).
Article Topics Array Cache Expiry (4 weeks).
Schema Types Array Cache Expiry (4 weeks).

Several methods have been refactored / improved to cut down on the number of objects stored in the WordPress transient cache — instead of storing one object, an array of objects is stored instead (for example, one array element for http and another for https).

Support for the WPSSO_TRANSIENT_CACHE_DISABLE, WPSSO_OBJECT_CACHE_DISABLE, and WPSSO_FILE_CACHE_DISABLE constants has been removed. To disable a caching feature (not recommended), you can set any of the new caching options to 0 seconds.

The Schema type https://schema.org/Thing has been added as the top-most parent for all other Schema types — WPSSO applies a filter to each Schema type parent, so Developers can hook a parent filter to modify the JSON of all its children. For example, hook the wpsso_json_data_https_schema_org_article filter to modify the JSON of all 6 of its sub-types (NewsArticle, TechArticle, ScholarlyArticle, BlogPosting, Report, and SocialMediaPosting). Here’s some example code to retrieve an article headline from a post custom field.


add_filter( 'wpsso_json_data_https_schema_org_article', 'filter_json_data_https_schema_org_article', 10, 2 );

function filter_json_data_https_schema_org_article( $json_data, $mod ) {
    if ( $mod['is_post'] ) {
        $json_data['headline'] = get_post_meta( $mod['id'], '_custom_article_headline', true );
    }
    return $json_data;
}

add_filter( 'wpsso_json_data_https_schema_org_article', 'filter_json_data_https_schema_org_article', 10, 2 );

function filter_json_data_https_schema_org_article( $json_data, $mod ) {

if ( $mod['is_post'] ) {

$json_data['headline'] = get_post_meta( $mod['id'], '_custom_article_headline', true );

}

return $json_data;

}

Documentation for the WPSSO $mod variable is available in the Developer resource section.

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