register_meta() │ WP 3.3.0

register_meta( $object_type, $meta_key, $args, $deprecated );

register_meta( 'post', 'bookname', array(
	'type' => 'string',
	'description' => 'Назва книги',
	'single' => true,
	'sanitize_callback' => null,
	'auth_callback' => null,
	'show_in_rest' => false,
)));

global $wp_meta_keys;

print_r($wp_meta_keys);

/*
Array
(
	[post] => Array
		(
			[bookname] => Array
				(
					[type] => string
					[description] => Назва книги
					[single] => 1
					[sanitize_callback] =>
					[auth_callback] => __return_true
					[show_in_rest] =>
				)

		)
)
*/

register_meta( 'post', 'bookname', array(
	'type' => 'string',
	'description' => 'Назва книги',
	'single' => true,
	'sanitize_callback' => 'sanitize_bookname_meta',
	'auth_callback' => 'auth_bookname_meta',
	'show_in_rest' => false,
)));

function sanitize_bookname_meta( $meta_value, $meta_key, $object_type ){
	$meta_value = wp_strip_all_tags( $meta_value ); // Видалимо html теги

	return $meta_value;
}

function auth_bookname_meta( $false, $meta_key, $postID, $user_id, $cap, $caps ){
	// Заборонимо створення та редагування цього метаполя для всіх, крім адміну
	if( ! current_user_can('manage_options') )
		return false;
	return true;
}

register_meta( 'post', 'my_meta_key', array(
	'object_subtype' => 'my_post_type',
	'show_in_rest' => true,
	'sanitize_callback' => 'absint',
)));

register_post_meta( 'my_post_type', 'my_meta_key', array(
	'show_in_rest' => true,
	'sanitize_callback' => 'absint',
)));

список змін

Код register_meta() register meta ^{WP 6.0.2}

function register_meta( $object_type, $meta_key, $args, $deprecated = null ) {
	global $wp_meta_keys;

	if ( ! is_array( $wp_meta_keys ) ) {
		$wp_meta_keys = array();
	}

	$defaults = array(
		'object_subtype' => '',
		'type' => 'string',
		'description' => '',
		'default' => '',
		'single' => false,
		'sanitize_callback' => null,
		'auth_callback' => null,
		'show_in_rest' => false,
	);

	// Вони використовуються для окремих арг для санітарного та авт callbacks.
	$has_old_sanitize_cb = false;
	$has_old_auth_cb = false;

	if ( is_callable( $args ) ) {
		$ args = array (
			'sanitize_callback' => $args,
		);

		$has_old_sanitize_cb = true;
	} else {
		$args = (array) $args;
	}

	if ( is_callable( $deprecated ) ) {
		$args['auth_callback'] = $deprecated;
		$has_old_auth_cb = true;
	}

	/**
	 * Filters the registration arguments при registering meta.
	 *
	 * @ Since 4.6.0
	 *
	 * @param array $args Array of meta registration arguments.
	 * @param array $defaults Array of default arguments.
	 * @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
	 * або будь-який інший object type with an associated meta table.
	 * @param string $meta_key Meta key.
	 */
	$args = apply_filters( 'register_meta_args', $args, $defaults, $object_type, $meta_key );
	unset( $defaults['default'] );
	$ args = wp_parse_args ($ args, $ defaults);

	// Require an item schema when registering array meta.
	if ( false !== $args['show_in_rest'] && 'array' === $args['type'] ) {
		if ( ! is_array( $args['show_in_rest'] ) || ! isset( $args['show_in_rest']['schema']['items'] ) ) {
			_doing_it_wrong( __FUNCTION__, __( 'When registering "array" meta type to show in the REST API, ви повинні визначати schema for each array item in "show_in_rest.schema.items".' ), '5.3.

			return false;
		}
	}

	$object_subtype =! empty( $args['object_subtype'] ) ? $args['object_subtype'] : '';

	// If `auth_callback` is not provided, fall back to `is_protected_meta()`.
	if ( empty( $args['auth_callback'] ) ) {
		if ( is_protected_meta( $meta_key, $object_type ) ) {
			$args['auth_callback'] = '__return_false';
		} else {
			$args['auth_callback'] = '__return_true';
		}
	}

	// Back-compat: old sanitize і auth callbacks є applied to all of an object type.
	if ( is_callable( $args['sanitize_callback'] ) ) {
		if ( ! empty( $object_subtype ) ) {
			add_filter( "sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $args['sanitize_callback'], 10, 4);
		} else {
			add_filter( "sanitize_{$object_type}_meta_{$meta_key}", $args['sanitize_callback'], 10, 3);
		}
	}

	if ( is_callable( $args['auth_callback'] ) ) {
		if ( ! empty( $object_subtype ) ) {
			add_filter( "auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $args['auth_callback'], 10, 6);
		} else {
			add_filter( "auth_{$object_type}_meta_{$meta_key}", $args['auth_callback'], 10, 6);
		}
	}

	if ( array_key_exists( 'default', $args ) ) {
		$schema = $args;
		if ( is_array( $args['show_in_rest'] ) && isset( $args['show_in_rest']['schema'] ) ) {
			$schema = array_merge( $schema, $args['show_in_rest']['schema'] );
		}

		$check = rest_validate_value_from_schema( $args['default'], $schema );
		if ( is_wp_error( $check ) ) {
			_doing_it_wrong( __FUNCTION__, __( 'When registering default meta value the data must match the type provided.' ), '5.5.0' );

			return false;
		}

		if ( ! has_filter( "default_{$object_type}_metadata", 'filter_default_metadata' ) ) {
			add_filter( "default_{$object_type}_metadata", 'filter_default_metadata', 10, 5);
		}
	}

	// Global registration тільки contains meta keys registered with array of arguments added in 4.6.0.
	if ( ! $has_old_auth_cb && ! $has_old_sanitize_cb ) {
		unset( $args['object_subtype'] );

		$wp_meta_keys[ $object_type ][ $object_subtype ][ $meta_key ] = $args;

		return true;
	}

	return false;
}

Зв’язані функції

metadata (метадані)

Метадані