Reply To: Why doesn't this work on acf/save_post when attaching gallery ids?

• Samjco

• February 3, 2023 at 7:22 pm

Ok thanks!! John..
This is what works!!

function on_post_save( $post_id) {

			//Get previous values.
			//$prev_values = get_fields( $post_id );
		
			//Get submitted values.
			//$values = $_POST['acf'];

			$post   = get_post( $post_id );
            $output =  apply_filters( 'the_content', $post->post_content );
			if($output):
					
					$post_content = html_entity_decode($output);
					$dom = new DomDocument();
					@$dom->loadHTML($post_content);
					
					$attachment_ids = array();
					foreach ($dom->getElementsByTagName('a') as $item) {
					$attachment_ids[] = $item->getAttribute('data-id');
					}
			
					//var_dump($attachment_ids);
					// die();
				
					if($attachment_ids):
						update_field('field_63a6bd5d2a3d2',$attachment_ids, $post_id);
					else:
						update_field('field_63a6bd5d2a3d2',"", $post_id);
					endif;
			else:	
				   //clear all attachments if no content is available 	
				   update_field('field_63a6bd5d2a3d2',"", $post_id);
			endif; 
		}
		add_action('acf/save_post', 'on_post_save', 10);