How to set a calculated date to filter blog posts

Hi Ismael, I got it. The code I used is as follows (I put it in the functions.php). However I got into a new problem:

My two pages, have the content element ‘blog posts’ where I show all the categories. Programatically by the below code the two pages show different posts according to the acf field = year (anno)

If however I click on the category link (hence filter by category) the category archive is mess up. I checked and something in the function below enters in conflict with the category archive. Do you have any suggestion?

I copy in the private section the link to the test page

add_filter('avia_post_slide_query', 'avia_post_slide_query_mod',10, 2);
function avia_post_slide_query_mod($query, $params) {
	$posts = get_posts($query);
	$today_year = date('yy');
	$two_years_ago = $today_year - 2;
	$current = array();
		foreach( $posts as $post ) {
			$meta = get_post_meta($post->ID); //acf fields are saved in post meta
			$acf_year = $meta['anno'][0]; //get the value of the field needed (anno=year)
			if (is_page(112)){
				if($acf_year >= $two_years_ago & $acf_year <= $today_year) {
				$current[] = $post->ID;
				}	
			}
			else if (is_page(204))	{
				 if($acf_year < $two_years_ago) {
				$current[] = $post->ID;
				}	
			}
		}
	$query['post__in'] = $current;
	return $query;
}

• This reply was modified 3 years, 10 months ago by elenapoliti.

Thanks it worked! I included the condition if(is_archive()) as follows, and everything is back to normal

add_filter('avia_post_slide_query', 'avia_post_slide_query_mod',10, 2);
function avia_post_slide_query_mod($query, $params) {
	$posts = get_posts($query);
	$today_year = date('yy');
	$two_years_ago = $today_year - 2;
	$current = array();

		foreach( $posts as $post ) {
			$meta = get_post_meta($post->ID);
			$acf_year = $meta['anno'][0];
			
			if (is_page(112)){
				if($acf_year >= $two_years_ago & $acf_year <= $today_year) {
				$current[] = $post->ID;
				}	
			}
			else if (is_page(204))	{
				if($acf_year < $two_years_ago) {
				$current[] = $post->ID;
				}	
			}
			else if (is_archive()) {
				return $query;
			}
		}

	$query['post__in'] = $current;

	return $query;
}

You can close the ticket. Thanks