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Diffstat (limited to '')
-rw-r--r-- | wp-includes/block-bindings/post-meta.php | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/wp-includes/block-bindings/post-meta.php b/wp-includes/block-bindings/post-meta.php new file mode 100644 index 0000000..75062f5 --- /dev/null +++ b/wp-includes/block-bindings/post-meta.php @@ -0,0 +1,70 @@ +<?php +/** + * Post Meta source for the block bindings. + * + * @since 6.5.0 + * @package WordPress + * @subpackage Block Bindings + */ + +/** + * Gets value for Post Meta source. + * + * @since 6.5.0 + * @access private + * + * @param array $source_args Array containing source arguments used to look up the override value. + * Example: array( "key" => "foo" ). + * @param WP_Block $block_instance The block instance. + * @return mixed The value computed for the source. + */ +function _block_bindings_post_meta_get_value( array $source_args, $block_instance ) { + if ( empty( $source_args['key'] ) ) { + return null; + } + + if ( empty( $block_instance->context['postId'] ) ) { + return null; + } + $post_id = $block_instance->context['postId']; + + // If a post isn't public, we need to prevent unauthorized users from accessing the post meta. + $post = get_post( $post_id ); + if ( ( ! is_post_publicly_viewable( $post ) && ! current_user_can( 'read_post', $post_id ) ) || post_password_required( $post ) ) { + return null; + } + + // Check if the meta field is protected. + if ( is_protected_meta( $source_args['key'], 'post' ) ) { + return null; + } + + // Check if the meta field is registered to be shown in REST. + $meta_keys = get_registered_meta_keys( 'post', $block_instance->context['postType'] ); + // Add fields registered for all subtypes. + $meta_keys = array_merge( $meta_keys, get_registered_meta_keys( 'post', '' ) ); + if ( empty( $meta_keys[ $source_args['key'] ]['show_in_rest'] ) ) { + return null; + } + + return get_post_meta( $post_id, $source_args['key'], true ); +} + +/** + * Registers Post Meta source in the block bindings registry. + * + * @since 6.5.0 + * @access private + */ +function _register_block_bindings_post_meta_source() { + register_block_bindings_source( + 'core/post-meta', + array( + 'label' => _x( 'Post Meta', 'block bindings source' ), + 'get_value_callback' => '_block_bindings_post_meta_get_value', + 'uses_context' => array( 'postId', 'postType' ), + ) + ); +} + +add_action( 'init', '_register_block_bindings_post_meta_source' ); |