You may encounter situations where you need to automatically display a thumbnail or image of some kind that will link to posts. Here’s an example of this kind of situation: you want to display recent posts from a certain category on your home page, with a thumbnail for each post and maybe the title and an excerpt. Or, I recently had a client that had a box on their homepage for multimedia where they wanted an image to appear that would represent the latest post in the Media category and would link to that post. A link to this site is at the end of this post, so read on.
Simply paste the following function into your functions.php file:
function wallthumb($id=false,$beforelist='
- ',$afterlist='
',$beforeitem='
'){
global $wp_query;
$goquery = $wp_query->post;//contenu de la requète
if(is_attachment()){
$ptitre = $goquery->post_title;//le titre de l'image
$idparent = $goquery->post_parent;//l'id de la page parente
if(!$id){//si pas d'id en argument, on tente de la recuperer
$id = $goquery->ID;
}
if($idparent == null || $idparent == '' || $idparent == 0){
return;//si l'image est orpheline (sans page parente) on stop la fonction
}
//$twice = get_posts('post_type=attachment&post_mime_type=image&numberposts=-1&order=ASC&post_status=null&post_parent='.$idparent);//recup des infos des pièces jointes a la page parente
$twice = get_children('post_type=attachment&post_mime_type=image&order=ASC&post_parent='.$idparent);//recup des infos des pièces jointes a la page parente
$stocklienimage = array();//pour stocker les liens images
if($twice){//si pièces jointes
foreach ($twice as $value) {//boucle
$classthumbactu = '';
if($value->ID == $id){//detection de l'image courante dans la boucle pour ajout d'une classe pour la differencier
$classthumbactu=' thumbactu';
}
$stocklienimage[$value->ID] = $beforeitem.''.wp_get_attachment_image( $value->ID, 'thumbnail' ).''.$afteritem;
}
}else{
return;
}
echo $beforelist.implode('', $stocklienimage).$afterlist;//affichage de la liste
}
}
Once done, you just have to call the function:
< ?php wallthumb() ?>
Enjoy your gallery!
