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<?php
/**
* Interface Google\Site_Kit\Core\Storage\Meta_Interface
*
* @package Google\Site_Kit\Core\Storage
* @copyright 2021 Google LLC
* @license https://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0
* @link https://sitekit.withgoogle.com
*/
namespace Google\Site_Kit\Core\Storage;
/**
* Interface for object meta implementations.
*
* @since 1.33.0
* @since 1.146.0 Renamed from Post_Meta_Interface to Meta_Interface.
*
* @access private
* @ignore
*/
interface Meta_Interface {
/**
* Gets object meta.
*
* @since 1.33.0
*
* @param int $object_id Object ID.
* @param string $key Metadata key.
* @param bool $single Whether to return a single value.
* @return mixed Object meta value.
*/
public function get( $object_id, $key, $single = false );
/**
* Updates an object meta field based on the given object ID.
*
* @since 1.33.0
*
* @param int $object_id Object ID.
* @param string $key Metadata key.
* @param mixed $value Metadata value.
* @param mixed $prev_value Previous value to check before updating. If specified, only update existing metadata entries with this value. Otherwise, update all entries.
* @return bool TRUE on success, otherwise FALSE.
*/
public function update( $object_id, $key, $value, $prev_value = '' );
/**
* Adds a meta field to the given object.
*
* @since 1.33.0
*
* @param int $object_id Object ID.
* @param string $key Metadata key.
* @param mixed $value Metadata value.
* @param bool $unique Whether the same key should not be added.
* @return int|bool Meta id on success, otherwise FALSE.
*/
public function add( $object_id, $key, $value, $unique = false );
/**
* Deletes an object meta field for the given object ID.
*
* @since 1.33.0
*
* @param int $object_id Object ID.
* @param string $key Metadata key.
* @param mixed $value Metadata value. If provided, rows will only be removed that match the value.
* @return bool TRUE on success, otherwise FALSE.
*/
public function delete( $object_id, $key, $value = '' );
}