social_image_share

// Share image for articulo
add_filter('wpseo_opengraph_image', 'social_image_articulo');
function social_image_articulo($image) {
global $post;
if( is_singular( ['articulo'] ) ){
$image = get_post_meta($post->ID, 'wpcf-imagen-full', true);
}
return $image;
}

// Share image for columnista
add_filter('wpseo_opengraph_image', 'social_image_columnista');
function social_image_columnista($image) {
global $post;
if( is_singular( ['columnista'] ) ){
$image = get_post_meta($post->ID, 'wpcf-foto-del-columnista', true);
}
return $image;
}

// Share image for blogger
add_filter('wpseo_opengraph_image', 'social_image_blogger');
function social_image_blogger($image) {
global $post;
if( is_singular( ['blogger'] ) ){
$image = get_post_meta($post->ID, 'wpcf-foto-del-blogger', true);
}
return $image;
}

// Share image for debate
add_filter('wpseo_opengraph_image', 'social_image_debate');
function social_image_debate($image) {
global $post;
if( is_singular( ['debate'] ) ){
$image = get_post_meta($post->ID, 'wpcf-foto-del-ponente-a-favor', true);
}
return $image;
}