<?php
/**
 * Copyright © ShopeX （http://www.shopex.cn）. All rights reserved.
 * See LICENSE file for license details.
 */
class redis_peer
{
	protected $name_space;

    /**
     * __construct
     * @return mixed 返回值
     */
    public function  __construct()
	{
		$this->name_space = get_class($this);
	}

	/**
	 * @return php_redis
	 */
	public function get_connection()
	{
		return redis_pool::get('master');
	}

	public function next_id()
	{
		return $this->get_connection()->inc($this->name_space . 'pk');
	}

	public function last_id()
	{
		return $this->get_connection()->get($this->name_space . 'pk');
	}

	public function insert( $data )
	{
		$data['id'] = $this->next_id();
		$this->get_connection()->set($this->name_space . 'item' . $data['id'], $data);
		return $data['id'];
	}

	public function update( $id, $data )
	{
		$data = array_merge($this->get_by_id($id), $data);
		$this->get_connection()->set($this->name_space . 'item' . $id, $data);
	}

	public function get_by_id( $id )
	{
		return $this->get_connection()->get($this->name_space . 'item' . $id);
	}

	public function delete( $id )
	{
		return $this->get_connection()->delete($this->name_space . 'item' . $id);
	}
}