This Pro tutorial provides the steps to filter the rows of a Meta Box cloneable group to only those that have a date custom field value set to today in Bricks query loop.
Use case: Can be used when setting up a restaurant website where the recipes for only the current day should be shown on single posts.
Step 1
Install Meta Box and its AIO extensions.
Create a field group having a Date Picker type of field.

Step 2
Edit your posts and populate the field group.

Step 3
Edit the single Bricks template for your post type.
Copy this Section’s JSON and paste it.

We have selected “MB Group: Post Data” as the Query Type where “Post Data” is the ID of the cloneable group.
Step 4
Add the following in child theme‘s functions.php or a code snippets plugin:
add_filter( 'bricks/query/run', function( $results, $query_obj ) {
if ( $query_obj->element_id !== 'undnix' ) return $results;
// return only the results that have date_khpbe7p5pn Meta Box sub field value set to today's date
$filtered_results = array_filter( $results, function( $result ) {
return $result['date_khpbe7p5pn'] === date( 'Y-m-d' );
} );
return $filtered_results;
}, 30, 2);
Replace undnix with the Bricks ID of your query loop element.