tag.php

<?php

  // Create a new tag.
  function add($task_id, $text) {
    $data = array(
      'task_id' => $task_id,
      'user_id' => $this->tank_auth->get_user_id(),
      'content' => strip_tags(trim($text))
    );
    $this->db->insert('comments', $data);
  }