Disable only one Gutenberg block programatically / coblock/maps not listed in blocks

Question

I have installed https://github.com/godaddy-wordpress/coblocks and want to provide only OpenStreetMap based blocks (which I installed additionally) and remove the coblocks/map block.

add_filter( 'allowed_block_types_all', 'myplugin_allowed_block_types', 0 );

function myplugin_allowed_block_types( $allowed_blocks )
{
    $block_types = WP_Block_Type_Registry::get_instance()->get_all_registered();
    if (!isset($block_types['coblocks/map'])) {
        wp_die('Block not found to unset');
    }
    unset($block_types['coblocks/map']);
    return array_keys($block_types);
}

This dies with Block not found to unset

Actually the code works without that check, but I am wondering if there are other blocks which are not in the registry but still work and would be disabled with my code.

So essentially I am asking why get_all_registered does not have some blocks which are still there and how I can remove only specific blocks if I can not reliably fetch a list of all blocks.

Answer 1

You'll want to target the block specifically via javascript. Brief example:

wp.domReady(function() {
    wp.blocks.unregisterBlockType( 'coblocks/map' );
});

Save that to a js file and enqueue it via your custom function: add_action('enqueue_block_editor_assets', 'your_custom_enqueue_fucntion')