Filter posts by meta value - Generate Press

functions.php

<?php

/*
* In this example, we are filtering the custom post type named 'Events'
*/

add_filter( 'generateblocks_query_loop_args', function( $query_args, $attributes ) {

    // apply filter if loop has class: upcoming-events-grid
    if (! is_admin() && ! empty( $attributes['className'] ) && strpos( $attributes['className'], 'upcoming-events-grid' ) !== false) {
       
        $query_args = array_merge( $query_args, array(
            'meta_key' => 'start_date',
            'meta_type' => 'DATE',
            'orderby' => 'meta_value',
            'order' => 'ASC',
			      'meta_query' => array(
              array(
                  'key' => 'start_date', // Check the start date field
                  'value' => date("Y-m-d"), // Set today's date (note the similar format)
                  'compare' => '>=', // Return the ones greater than today's date
                  'type' => 'DATE' // Let WordPress know we're working with date
              )
            ),
        ));
    }

    return $query_args;
  
}, 10, 2 );