Widget soll nach jeder Veröffentlichung etwas in meine custom tabelle schreiben

function check_delta_db( $post_id ) {	global $wpdb;
	global $table__terms_relation;
	global $table__terms;
	global $table__posts;
	global $table__realtionships;
	global $table__taxonomy;
	
	//verify post is not a revision
	if (!wp_is_post_revision( $post_id ) ){
		
		update_option('stc_publish_updated_id',$post_id);
		$current_post_state=$wpdb->get_var("SELECT post_status FROM $table__posts WHERE ID = $post_id"); //get current status
		/*is the status of the current post = publish ? */			
		if ($current_post_state=='publish'){
			
			$saved_num_of_wp_relations = get_option('stc_num_wp_relations');
			$current_num_of_wp_relations=$wpdb->get_var("SELECT COUNT(*) FROM $table__realtionships ");
			
			/*if saved number of entries is not equal than the current number of entries continue 
			only if a post/pages was published including tags, the $current_num_of_wp_relations is greater than the $saved_num_of_wp_relations,
			because object/tags where saved in the standard term_relationship table*/
			if ($saved_num_of_wp_relations != $current_num_of_wp_relations){
				
				/*if the current post_id is already saved in the custom table update the entries (first solution: delete all items)*/
				$object_is_in_table=$wpdb->get_var("SELECT COUNT(*) FROM $table__realtionships WHERE object_id = $post_id ");
				if ($object_is_in_table >='1'){
					if(is_admin()){
						$wpdb->query($wpdb->prepare("DELETE FROM $table__terms_relation WHERE $table__terms_relation.`object_id` = $post_id"));
					}
				}
				update_option('stc_publish_updated_id',$post_id);
												
				$get_values ="select ".$table__terms.".term_id,".$table__terms.".name
				FROM ".$table__realtionships.", ".$table__taxonomy.", ".$table__terms."
				WHERE ".$table__realtionships.".object_id = ".$post_id."
				AND ".$table__taxonomy.".term_taxonomy_id = ".$table__realtionships.".term_taxonomy_id
				AND ".$table__terms.".term_id = ".$table__taxonomy.".term_id ";
				
				$hpe_delta_import = $wpdb->get_results($get_values, ARRAY_A);
				
											
				$current_timestamp = time();
				foreach ($hpe_delta_import as $import_tag){ 
				
					$import=$wpdb->insert($table__terms_relation, 
							array(	'object_id'=>$post_id,
									'term_id'=>$import_tag['term_id'],
									'term_prio'=>'3',
									'timestamp'=>$current_timestamp ),
							array(	'%d',
									'%d',
									'%d',
									'%d'));	
				}//end foreach	
			} // end if 
		}else{ // post is not in state 'publish'
		add_option('stc_publish_id',$post_id);
		update_option('stc_publish_id',$post_id);
		/*do nothing, because no tag where added to this post or page*/
		}
	}// end check if post =! revision
}