Update keywords statistics at catalog time

application/libraries/Catalog_item.php

@@ -211,6 +211,9 @@ private function _process_keywords($project_id, $keywords_tag)
                 $this->ci->project_keyword_model->insert(array('project_id'=>$project_id));
             }
 		}
+		// For keywords used in this project, update 'instances' field of 'keywords' table now,
+                // so correct keyword instances stats can be shown on catalog page even before keywords cron stats job runs. 
+                $this->ci->project_keyword_model->set_keywords_statistics_by_project($project_id);
 
 	}
 

application/models/Project_keyword_model.php

@@ -2,6 +2,25 @@
 
 class Project_keyword_model extends MY_Model {
 
+   public function set_keywords_statistics_by_project($project_id)
+    {        
+        $sql = '
+ 	UPDATE keywords k
+	JOIN
+		(SELECT pk.keyword_id as keyword_id, COUNT(pk.project_id) AS count
+        	FROM project_keywords pk
+		GROUP BY 1
+		) as sub
+	ON k.id = sub.keyword_id
+	SET k.instances = sub.count 
+	WHERE k.id IN
+		(SELECT keyword_id 
+        	FROM project_keywords
+        	WHERE project_id = ?)';
+
+
+        $query = $this->db->query($sql, array($project_id));
+    } 
 
 
 }