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Piotr Pelczar edited this page Apr 23, 2018 · 4 revisions

How to generate missing custom post meta keys and values

In case of missing custom post field values you can generate them on-the-fly using generate_dynamic_metadata filter.

Example:

function generate_dynamic_metadata( $post_meta = null, $post = null ) {
  if ( ! array_key_exists( 'some_meta_key', $post_meta ) ) {
    $post_meta['some_meta_key'] = 'Default value';
  }

  return $post_meta;
}

add_filter( 'wpcfp_get_post_metadata', array( $this, 'generate_dynamic_metadata' ), 1, 2 );