我有一个自定义插件，可以注册多个CPT，我想重用wp-posts-to-posts 定义关系。我只是想知道包含api的正确/最佳方式是什么。我自己插件中的php文件？

function my_connection_types() {

    require_once( ABSPATH . \'wp-content/plugins/posts-to-posts/core/api.php\' );
    // Make sure the Posts 2 Posts plugin is active.
    if ( !function_exists( \'p2p_register_connection_type\' ) )
        return;

    p2p_register_connection_type( array(
            \'name\' => \'events_to_races\',
            \'from\' => \'event\',
            \'to\' => \'race\',
            \'cardinality\' => \'one-to-many\'
    ) );
}

我有一个自定义插件，可以注册多个CPT，我想重用wp-posts-to-posts 定义关系。我只是想知道包含api的正确/最佳方式是什么。我自己插件中的php文件？

function my_connection_types() {

    require_once( ABSPATH . \'wp-content/plugins/posts-to-posts/core/api.php\' );
    // Make sure the Posts 2 Posts plugin is active.
    if ( !function_exists( \'p2p_register_connection_type\' ) )
        return;

    p2p_register_connection_type( array(
            \'name\' => \'events_to_races\',
            \'from\' => \'event\',
            \'to\' => \'race\',
            \'cardinality\' => \'one-to-many\'
    ) );
}