Reply To: ACF Blocks – Need stable id

• tomatillodesign

• October 18, 2022 at 12:58 pm

For some reason, this is what I got working, at least for now:

block.json

{
    "name": "acf/clb-custom-info-card",
    "title": "Info Card",
    "description": "A custom info card block.",
    "style": [ "file:./clb_custom_info_card.css" ],
    "category": "common",
    "icon": "admin-comments",
    "keywords": ["testimonial", "quote"],
    "acf": {
        "mode": "preview",
        "renderTemplate": "clb_custom_info_card.php"
    },
    "align": "full",
    "providesContext": {"acf/fields": "data"},
    "attributes": {
        "clb_custom_id": {
            "type": "string",
            "default": "1234abcd"
         }
      }
}

And then my acf/pre_save_block filter:

add_filter(
    'acf/pre_save_block',
    function( $attributes ) {

        //error_log('attributes');
        error_log( print_r( $attributes, true ) );

        // if ( empty( $attributes['clb_custom_id'] ) ) {
        //     $attributes['clb_custom_id'] = 'clb_custom_id-' . uniqid();
        // }

        if( !$attributes['clb_custom_id'] ) { $attributes['clb_custom_id'] = uniqid(); }

        // if ( empty( $attributes['data']['clb_custom_id'] ) ) {
        //     $attributes['data']['clb_custom_id'] = 'clb_custom_id-' . uniqid();
        // }

        return $attributes;
    }
);