Reply To: Populate Field Value with Sum of Two Other Fields

• jrstaton

• August 12, 2020 at 12:52 am

Thanks. I actually have Repeater > Flexible Content > Repeater. After working with the information from the support article you posted I got it working. Here is what worked.

function my_acf_save_post( $post_id ) {
if( have_rows('content_panels') ): 
	$parent_i = 0;
	while( have_rows('content_panels') ): the_row();
	 $parent_i++;
 		if( have_rows('panel_contents') ):
			while( have_rows('panel_contents') ): the_row();
				if( have_rows('content_columns') ):
				$child_i = 0;
					while ( have_rows('content_columns') ) : the_row();	
					$child_i++;
					// get new value
					$topMargin = get_sub_field('column_margin_top');
					$bottomMargin = get_sub_field('column_margin_bottom');
						if($topMargin || $bottomMargin):
						$totalMargin = $topMargin + $bottomMargin;	
						update_sub_field('total_margin', $totalMargin, $post_id);
						endif;
					endwhile;
				endif;
			endwhile;
		endif;
	endwhile;
endif;
}
add_action('acf/save_post', 'my_acf_save_post', 20);

Is there a way to optimize what I have or is this correct? I just don’t want it to cause issues once I get into a production environment. Thanks again.