Profile: nichaS

Problem: I would like to use a custom field on my post to determine when it appears in a View. The field should have options for each day of the week, and the post should only appear on the selected day of the week.

Solution: Set the options for your custom field to have values that correspond to each day of the week, using lowercase letters, like "monday", "tuesday", and so on. Then add this code to functions.php:

add_filter( 'wpv_filter_query', 'todays_posts',99,3 );
function todays_posts( $query,$views_settings, $view_id) {
  $views = array( 1234, 5678 );
  if ( in_array( $view_id, $views ) ){
    $args = array(
      'relation' => 'AND',
      array(
        'key' => 'wpcf-yourfieldslug',
        'value' => date('l'),
        'compare' => '='
      )
    );
    $query['meta_query'] = isset($query['meta_query']) ? $query['meta_query'] : [];
    $query['meta_query'][] = $args;
  }
  return $query;
}

Replace 1234,5678 with a comma-separated list of View IDs where you want to apply this filter. Replace "yourfieldslug" with the slug of your custom field.

Relevant Documentation: https://toolset.com/documentation/programmer-reference/views-filters/#wpv_filter_query