MOdx set the conditions for displaying the image. What are the options?

Question

MODX

The bottom line is that I, using output filters, try to display an image, if it exists, and if not, then a link to the logo should be displayed. One is *cat_img , it outputs it, but prod_img or else doesn't work at all. what's wrong ?

Answer 1

<meta itemprop="image" content="https://quadmaster.ru/assets/gallery/1/podklyuchenie-dho-na-kvadrocikl.jpg" />

cat_img and prod_img can be swapped depending on which is more important.