Enable comment

enable_comment.php

function enableCommentByCat() {
  global $wpdb;
  $getPosts = new WP_Query( array( 'category_name' => 'ten_category') ); 
  if ( $getPosts->have_posts() ) {
      while ( $getPosts->have_posts() ) {
          $getPosts->the_post();
          $postId = get_the_ID();
          $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET comment_status = 'open' WHERE ID=$postId"));
      } 
   } else {
        $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET comment_status = 'closed' WHERE post_type='post'"));
   }
}
enableCommentByCat();