Meta Box

Hi,

what I posted above isn't exactly right, I ran into the issue that the attributes are set as strings on the metabox html object so you have an issue if there's a array (ie an image value or something).

I made it instead like this

	static function html( $meta, $field )
	{
		// Get parent field and filter to child field meta value
		if(!isset($field['parent_meta'])){
			add_filter( 'rwmb_field_meta', array( __CLASS__, 'child_field_meta' ), 10, 3 );
		}

		ob_start();

		foreach ( $field['fields'] as $child_field )
		{
			$child_field['attributes']['name'] = $child_field['field_name'] = self::child_field_name( $field['field_name'], $child_field['field_name'] ); 
			if(isset($meta[$child_field['id']])){
				$child_field['parent_meta'] = $meta[$child_field['id']];
			}
			call_user_func( array( RW_Meta_Box::get_class_name( $child_field ), 'show' ), $child_field, RWMB_Group::$saved);	
		}

		// Remove filter to child field meta value and reset class's parent field's meta
		if(!isset($field['parent_meta'])){
			remove_filter( 'rwmb_field_meta', array( __CLASS__, 'child_field_meta' ) );
		}

	   return ob_get_clean();
	}

static function child_field_meta( $meta, $child_field, $saved )
	{

		$meta = '';
		$id   = $child_field['id'];

		if ( isset( $child_field['parent_meta'] ) )
		{
			$meta = $child_field['parent_meta'];
		}
		elseif ( ! $saved && isset( $child_field['std'] ) )
		{
			$meta = $child_field['std'];
		}
		elseif ( $child_field['multiple'] )
		{
			$meta = array();
		}

		return $meta;
	}