Função para retornar termos de uma taxonomia pela ordem de utilização

library/functions.php

@@ -12,4 +12,63 @@ function template_part($template_name, $params = []){
     extract($params);
 
     include $template_filename;;
+}
+
+
+/**
+ * Retorna uma lista de termos ordenados pela data de utilização.
+ *
+ * @param string $taxonomy
+ * @param integer $limit
+ * @param integer $paged
+ * @return \WP_Term[]
+ */
+function get_terms_order_by_posts_publish_date(string $taxonomy, int $limit = 10, int $paged = 1){
+    global $wpdb;
+
+    if(false) $wpdb = new \wpdb(1,2,3,4);
+
+    $offset = $limit * ($paged - 1);
+
+    $sql = "
+        SELECT 
+            t.term_id,
+            t.name,
+            t.slug,
+            tx.term_taxonomy_id,
+            tx.taxonomy,
+            tx.description,
+            tx.parent,
+            tx.count
+        FROM 
+            $wpdb->terms t
+            LEFT JOIN $wpdb->term_taxonomy tx ON tx.term_id = t.term_id
+            LEFT JOIN $wpdb->term_relationships tr ON tr.term_taxonomy_id = tx.term_taxonomy_id
+            LEFT JOIN $wpdb->posts p ON p.ID = tr.object_id
+        
+        WHERE 
+            tx.taxonomy = '$taxonomy' AND
+            p.post_type = 'coluna' AND
+
+            tr.object_id IN (
+                SELECT 
+                    MAX(object_id) 
+                FROM 
+                    $wpdb->term_relationships 
+                WHERE 
+                    term_taxonomy_id = tr.term_taxonomy_id
+            )
+            
+            GROUP BY tx.term_taxonomy_id
+            ORDER BY p.post_date DESC
+        
+        LIMIT $limit
+        OFFSET $offset
+        ";
+
+    $results = $wpdb->get_results($sql);
+
+    $terms = array_map(function($term){ return new \WP_Term($term); }, $results);
+
+    return $terms;
 }
\ No newline at end of file