Shellcreeper

It’s relatively easy to create date/time picker in Gutenberg editor. What we need to do is to import and use DateTimePicker component and we can create something like this:

Here’s the step by step to create date/time picker:

In my previous post I mentioned that the reason why we need to learn to do this is to get all the new features. But what is the new features?

You can read more in my previous post: Custom Field & Meta Box in Gutenberg Editor.

In this short blog post, I want to give a simple example, to transform the field to a full sidebar panel.

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?