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I'm trying to write a function in functions.php that promotes a post to featured depending on how many times has been viewed. For the views I'm using a plugin method. Still I'm not able to loop through all the posts and set the sticky class.

function promote_post($viewed) {
global $post;

foreach($post->ID as $viewed){
   $post_views = wpp_get_views($post->ID);
}

if (is_home() && ($post_views > 2)){
        stick_post($viewed); 
  } else { 
         unstick_post($viewed)
      }
}
add_filter('post_class', 'promote_post');

I'm confident that I'm not using the foreach as it should be. I'd appreciate some directions thus to sharpen my PHP skills.

Thanks beforehand.

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What happens if you use foreach($viewed as $post)? – toscho♦ Oct 3 '12 at 21:43
I get Trying to get property of non-object in functions.php on line 96, that is $post_views = wpp_get_views($post->ID); – user1672895 Oct 3 '12 at 21:59
Try get_the_ID() instead. Won't change anything, but there's a 1% chance that you got a typo somewhere. – kaiser Oct 4 '12 at 6:37
I get an error: Invalid argument supplied for foreach() – user1672895 Oct 4 '12 at 15:26
Thanks for the hints. This is the working code for reference: function promote_post($classes) { global $post; if (is_home() && wpp_get_views($post->ID) > 10){ stick_post(get_the_ID()); } else {unstick_post(get_the_ID()); } return $classes; } add_filter('post_class', 'promote_post'); – user1672895 Oct 4 '12 at 21:44

closed as too localized by Rarst♦ Oct 14 '12 at 20:49

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