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_block_bindings_post_meta_get_value › WordPress Function

Since6.5.0
已弃用n/a
› _block_bindings_post_meta_get_value ( $source_args, $block_instance )
访问:
  • private
参数: (2)
  • (array) $source_args Array containing source arguments used to look up the override value. Example: array( "key" => "foo" ).
    Required: Yes
  • (WP_Block) $block_instance The block instance.
    Required: Yes
返回:
  • (mixed) The value computed for the source.
定义在:
文档:

Gets value for Post Meta source.



Related Functions: _register_block_bindings_post_meta_source, _block_bindings_pattern_overrides_get_value, get_block_bindings_source, register_block_bindings_source, unregister_block_bindings_source

源码 

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 );
}