How to do this in the “new” way?
From this:
To this:
Creating a custom field using a custom meta box is simple and very straightforward.
Basically we create a meta box using meta box API and add it in post meta data using save_post hook.
Here’s the basic code:
// Add field:
add_action( 'add_meta_boxes', function() {
add_meta_box(
'my_meta_box',
'My Meta Box',
function( $post ) {
wp_nonce_field( __FILE__, '_my_data_nonce' );
?>
<p><input type="text" class="large-text" name="my_data" value="<?php echo esc_attr( get_post_meta( $post->ID, '_my_data', true ) ); ?>"></p>
<?php
},
'post',
'side'
);
} );
// Save field.
add_action( 'save_post', function( $post_id ) {
if ( isset( $_POST['my_data'], $_POST['_my_data_nonce'] ) && wp_verify_nonce( $_POST['_my_data_nonce'], __FILE__ ) ) {
update_post_meta( $post_id, '_my_data', sanitize_text_field( $_POST['my_data'] ) );
}
} );But how to do this in the new way?
Read More Custom Field & Meta Box in Gutenberg Editor
