/** * 创建索引 * * @param string $keys * @param string $options * @return string */ public function ensureIndex($keys, $options) { if (!empty($keys)) { $keys = $this->toArray($keys); } else { $keys = trim($keys); } if (!empty($options)) { $options = $this->toArray($options); } else { $options = array('background' => true); } $rst = $this->_model->ensureIndex($keys, $options); return $this->result($rst); }