egistered_fields()[ $meta_key ];
if ( $args['single'] ) {
$current = get_metadata( $this->get_meta_type(), $object_id, $meta_key, true );
if ( is_wp_error( rest_validate_value_from_schema( $current, $args['schema'] ) ) ) {
$error->add(
'rest_invalid_stored_value',
/* translators: %s: Custom field key. */
sprintf( __( 'The %s property has an invalid stored value, and cannot be updated to null.' ), $name ),
array( 'status' => 500 )
);
continue;
}
}
$result = $this->delete_meta_value( $object_id, $meta_key, $name );
if ( is_wp_error( $result ) ) {
$error->merge_from( $result );
}
continue;
}
if ( ! $args['single'] && is_array( $value ) && count( array_filter( $value, 'is_null' ) ) ) {
$error->add(
'rest_invalid_stored_value',
/* translators: %s: Custom field key. */
sprintf( __( 'The %s property has an invalid stored value, and cannot be updated to null.' ), $name ),
array( 'status' => 500 )
);
continue;
}
$is_valid = rest_validate_value_from_schema( $value, $args['schema'], 'meta.' . $name );
if ( is_wp_error( $is_valid ) ) {
$is_valid->add_data( array( 'status' => 400 ) );
$error->merge_from( $is_valid );
continue;
}
$value = rest_sanitize_value_from_schema( $value, $args['schema'] );
if ( $args['single'] ) {
$result = $this->update_meta_value( $object_id, $meta_key, $name, $value );
} else {
$result = $this->update_multi_meta_value( $object_id, $meta_key, $name, $value );
}
if ( is_wp_error( $result ) ) {
$error->merge_from( $result );
continue;
}
}
if ( $error->has_errors() ) {
return $error;
}
return null;
}
/**
* Deletes a meta value for an object.
*
* @since 4.7.0
*
* @param int $object_id Object ID the field belongs to.
* @param string $meta_key Key for the field.
* @param string $name Name for the field that is exposed in the REST API.
* @return true|WP_Error True if meta field is deleted, WP_Error otherwise.
*/
protected function delete_meta_value( $object_id, $meta_key, $name ) {
$meta_type = $this->get_meta_type();
if ( ! current_user_can( "delete_{$meta_type}_meta", $object_id, $meta_key ) ) {
return new WP_Error(
'rest_cannot_delete',
/* translators: %s: Custom field key. */
sprintf( __( 'Sorry, you are not allowed to edit the %s custom field.' ), $name ),
array(
'key' => $name,
'status' => rest_authorization_required_code(),
)
);
}
if ( null === get_metadata_raw( $meta_type, $object_id, wp_slash( $meta_key ) ) ) {
return true;
}
if ( ! delete_metadata( $meta_type, $object_id, wp_slash( $meta_key ) ) ) {
return new WP_Error(
'rest_meta_database_error',
__( 'Could not delete meta value from database.' ),
array(
'key' => $name,
'status' => WP_Http::INTERNAL_SERVER_ERROR,
)
);
}
return true;
}
/**
* Updates multiple meta values for an object.
*
* Alters the list of values in the database to match the list of provided values.
*
* @since 4.7.0
* @since 6.7.0 Stores values into DB even if provided registered default value.
*
* @param int $object_id Object ID to update.
* @param string $meta_key Key for the custom field.
* @param string $name Name for the field that is exposed in the REST API.
* @param array $values List of values to update to.
* @return true|WP_Error True if meta fields are updated, WP_Error otherwise.
*/
protected function update_multi_meta_value( $object_id, $meta_key, $name, $values ) {
$meta_type = $this->get_meta_type();
if ( ! current_user_can( "edit_{$meta_type}_meta", $object_id, $meta_key ) ) {
return new WP_Error(
'rest_cannot_update',
/* translators: %s: Custom field key. */
sprintf( __( 'Sorry, you are not allowed to edit the %s custom field.' ), $name ),
array(
'key' => $name,
'status' => rest_authorization_required_code(),
)
);
}
$current_values = get_metadata_raw( $meta_type, $object_id, $meta_key, false );
$subtype = get_object_subtype( $meta_type, $object_id );
if ( ! is_array( $current_values ) ) {
$current_values = array();
}
$to_remove = $current_values;
$to_add = $values;
foreach ( $to_add as $add_key => $value ) {
$remove_keys = array_keys(
array_filter(
$current_values,
function ( $stored_value ) use ( $meta_key, $subtype, $value ) {
return $this->is_meta_value_same_as_stored_value( $meta_key, $subtype, $stored_value, $value );
}
)
);
if ( empty( $remove_keys ) ) {
continue;
}
if ( count( $remove_keys ) > 1 ) {
// To remove, we need to remove first, then add, so don't touch.
continue;
}
$remove_key = $remove_keys[0];
unset( $to_remove[ $remove_key ] );
unset( $to_add[ $add_key ] );
}
/*
* `delete_metadata` removes _all_ instances of the value, so only call once. Otherwise,
* `delete_metadata` will return false for subsequent calls of the same value.
* Use serialization to produce a predictable string that can be used by array_unique.
*/
$to_remove = array_map( 'maybe_unserialize', array_unique( array_map( 'maybe_serialize', $to_remove ) ) );
foreach ( $to_remove as $value ) {
if ( ! delete_metadata( $meta_type, $object_id, wp_slash( $meta_key ), wp_slash( $value ) ) ) {
return new WP_Error(
'rest_meta_database_error',
/* translators: %s: Custom field key. */
sprintf( __( 'Could not update the meta value of %s in database.' ), $meta_key ),
array(
'key' => $name,
'status' => WP_Http::INTERNAL_SERVER_ERROR,
)
);
}
}
foreach ( $to_add as $value ) {
if ( ! add_metadata( $meta_type, $object_id, wp_slash( $meta_key ), wp_slash( $value ) ) ) {
return new WP_Error(
'rest_meta_database_error',
/* translators: %s: Custom field key. */
sprintf( __( 'Could not update the meta value of %s in database.' ), $meta_key ),
array(
'key' => $name,
'status' => WP_Http::INTERNAL_SERVER_ERROR,
)
);
}
}
return true;
}
/**
* Updates a meta value for an object.
*
* @since 4.7.0
* @since 6.7.0 Stores values into DB even if provided registered default value.
*
* @param int $object_id Object ID to update.
* @param string $meta_key Key for the custom field.
* @param string $name Name for the field that is exposed in the REST API.
* @param mixed $value Updated value.
* @return true|WP_Error True if the meta field was updated, WP_Error otherwise.
*/
protected function update_meta_value( $object_id, $meta_key, $name, $value ) {
$meta_type = $this->get_meta_type();
// Do the exact same check for a duplicate value as in update_metadata() to avoid update_metadata() returning false.
$old_value = get_metadata_raw( $meta_type, $object_id, $meta_key );
$subtype = get_object_subtype( $meta_type, $object_id );
if ( is_array( $old_value ) && 1 === count( $old_value )
&& $this->is_meta_value_same_as_stored_value( $meta_key, $subtype, $old_value[0], $value )
) {
return true;
}
if ( ! current_user_can( "edit_{$meta_type}_meta", $object_id, $meta_key ) ) {
return new WP_Error(
'rest_cannot_update',
/* translators: %s: Custom field key. */
sprintf( __( 'Sorry, you are not allowed to edit the %s custom field.' ), $name ),
array(
'key' => $name,
'status' => rest_authorization_required_code(),
)
);
}
if ( ! update_metadata( $meta_type, $object_id, wp_slash( $meta_key ), wp_slash( $value ) ) ) {
return new WP_Error(
'rest_meta_database_error',
/* translators: %s: Custom field key. */
sprintf( __( 'Could not update the meta value of %s in database.' ), $meta_key ),
array(
'key' => $name,
'status' => WP_Http::INTERNAL_SERVER_ERROR,
)
);
}
return true;
}
/**
* Checks if the user provided value is equivalent to a stored value for the given meta key.
*
* @since 5.5.0
*
* @param string $meta_key The meta key being checked.
* @param string $subtype The object subtype.
* @param mixed $stored_value The currently stored value retrieved from get_metadata().
* @param mixed $user_value The value provided by the user.
* @return bool
*/
protected function is_meta_value_same_as_stored_value( $meta_key, $subtype, $stored_value, $user_value ) {
$args = $this->get_registered_fields()[ $meta_key ];
$sanitized = sanitize_meta( $meta_key, $user_value, $this->get_meta_type(), $subtype );
if ( in_array( $args['type'], array( 'string', 'number', 'integer', 'boolean' ), true ) ) {
// The return value of get_metadata will always be a string for scalar types.
$sanitized = (string) $sanitized;
}
return $sanitized === $stored_value;
}
/**
* Retrieves all the registered meta fields.
*
* @since 4.7.0
*
* @return array Registered fields.
*/
protected function get_registered_fields() {
$registered = array();
$meta_type = $this->get_meta_type();
$meta_subtype = $this->get_meta_subtype();
$meta_keys = get_registered_meta_keys( $meta_type );
if ( ! empty( $meta_subtype ) ) {
$meta_keys = array_merge( $meta_keys, get_registered_meta_keys( $meta_type, $meta_subtype ) );
}
foreach ( $meta_keys as $name => $args ) {
if ( empty( $args['show_in_rest'] ) ) {
continue;
}
$rest_args = array();
if ( is_array( $args['show_in_rest'] ) ) {
$rest_args = $args['show_in_rest'];
}
$default_args = array(
'name' => $name,
'single' => $args['single'],
'type' => ! empty( $args['type'] ) ? $args['type'] : null,
'schema' => array(),
'prepare_callback' => array( $this, 'prepare_value' ),
);
$default_schema = array(
'type' => $default_args['type'],
'title' => empty( $args['label'] ) ? '' : $args['label'],
'description' => empty( $args['description'] ) ? '' : $args['description'],
'default' => isset( $args['default'] ) ? $args['default'] : null,
);
$rest_args = array_merge( $default_args, $rest_args );
$rest_args['schema'] = array_merge( $default_schema, $rest_args['schema'] );
$type = ! empty( $rest_args['type'] ) ? $rest_args['type'] : null;
$type = ! empty( $rest_args['schema']['type'] ) ? $rest_args['schema']['type'] : $type;
if ( null === $rest_args['schema']['default'] ) {
$rest_args['schema']['default'] = static::get_empty_value_for_type( $type );
}
$rest_args['schema'] = rest_default_additional_properties_to_false( $rest_args['schema'] );
if ( ! in_array( $type, array( 'string', 'boolean', 'integer', 'number', 'array', 'object' ), true ) ) {
continue;
}
if ( empty( $rest_args['single'] ) ) {
$rest_args['schema'] = array(
'type' => 'array',
'items' => $rest_args['schema'],
);
}
$registered[ $name ] = $rest_args;
}
return $registered;
}
/**
* Retrieves the object's meta schema, conforming to JSON Schema.
*
* @since 4.7.0
*
* @return array Field schema data.
*/
public function get_field_schema() {
$fields = $this->get_registered_fields();
$schema = array(
'description' => __( 'Meta fields.' ),
'type' => 'object',
'context' => array( 'view', 'edit' ),
'properties' => array(),
'arg_options' => array(
'sanitize_callback' => null,
'validate_callback' => array( $this, 'check_meta_is_array' ),
),
);
foreach ( $fields as $args ) {
$schema['properties'][ $args['name'] ] = $args['schema'];
}
return $schema;
}
/**
* Prepares a meta value for output.
*
* Default preparation for meta fields. Override by passing the
* `prepare_callback` in your `show_in_rest` options.
*
* @since 4.7.0
*
* @param mixed $value Meta value from the database.
* @param WP_REST_Request $request Request object.
* @param array $args REST-specific options for the meta key.
* @return mixed Value prepared for output. If a non-JsonSerializable object, null.
*/
public static function prepare_value( $value, $request, $args ) {
if ( $args['single'] ) {
$schema = $args['schema'];
} else {
$schema = $args['schema']['items'];
}
if ( '' === $value && in_array( $schema['type'], array( 'boolean', 'integer', 'number' ), true ) ) {
$value = static::get_empty_value_for_type( $schema['type'] );
}
if ( is_wp_error( rest_validate_value_from_schema( $value, $schema ) ) ) {
return null;
}
return rest_sanitize_value_from_schema( $value, $schema );
}
/**
* Check the 'meta' value of a request is an associative array.
*
* @since 4.7.0
*
* @param mixed $value The meta value submitted in the request.
* @param WP_REST_Request $request Full details about the request.
* @param string $param The parameter name.
* @return array|false The meta array, if valid, false otherwise.
*/
public function check_meta_is_array( $value, $request, $param ) {
if ( ! is_array( $value ) ) {
return false;
}
return $value;
}
/**
* Recursively add additionalProperties = false to all objects in a schema if no additionalProperties setting
* is specified.
*
* This is needed to restrict properties of objects in meta values to only
* registered items, as the REST API will allow additional properties by
* default.
*
* @since 5.3.0
* @deprecated 5.6.0 Use rest_default_additional_properties_to_false() instead.
*
* @param array $schema The schema array.
* @return array
*/
protected function default_additional_properties_to_false( $schema ) {
_deprecated_function( __METHOD__, '5.6.0', 'rest_default_additional_properties_to_false()' );
return rest_default_additional_properties_to_false( $schema );
}
/**
* Gets the empty value for a schema type.
*
* @since 5.3.0
*
* @param string $type The schema type.
* @return mixed
*/
protected static function get_empty_value_for_type( $type ) {
switch ( $type ) {
case 'string':
return '';
case 'boolean':
return false;
case 'integer':
return 0;
case 'number':
return 0.0;
case 'array':
case 'object':
return array();
default:
return null;
}
}
}
Fatal error: Uncaught Error: Class "WP_REST_Meta_Fields" not found in /htdocs/wp-includes/rest-api/fields/class-wp-rest-comment-meta-fields.php:17
Stack trace:
#0 /htdocs/wp-settings.php(330): require()
#1 /htdocs/wp-config.php(85): require_once('/htdocs/wp-sett...')
#2 /htdocs/wp-load.php(50): require_once('/htdocs/wp-conf...')
#3 /htdocs/wp-blog-header.php(13): require_once('/htdocs/wp-load...')
#4 /htdocs/index.php(17): require('/htdocs/wp-blog...')
#5 {main}
thrown in /htdocs/wp-includes/rest-api/fields/class-wp-rest-comment-meta-fields.php on line 17