<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!--
这个文件是自动生成的。
不要修改此文件。所有改动将在下次重新自动生成时丢失。
-->
<mapper namespace="com.keao.edu.user.dao.ShortUrlDao">
	
	<resultMap type="com.keao.edu.user.entity.ShortUrl" id="ShortUrl">
		<result column="id_" property="id" />
		<result column="url_" property="url" />
		<result column="create_time_" property="createTime" />
	</resultMap>
	
	<!-- 根据主键查询一条记录 -->
	<select id="get" resultMap="ShortUrl" >
		SELECT * FROM short_url WHERE id_ = #{id} 
	</select>
	
	<!-- 全查询 -->
	<select id="findAll" resultMap="ShortUrl">
		SELECT * FROM short_url ORDER BY id_
	</select>
	
	<!-- 向数据库增加一条记录 -->
	<insert id="insert" parameterType="com.keao.edu.user.entity.ShortUrl" useGeneratedKeys="true" keyColumn="id" keyProperty="id">
		INSERT INTO short_url (id_,url_,create_time_) VALUES(#{id},#{url},NOW())
	</insert>
	
	<!-- 根据主键查询一条记录 -->
	<update id="update" parameterType="com.keao.edu.user.entity.ShortUrl">
		UPDATE short_url <set>
			<if test="id != null">
			id_ = #{id},
			</if>
			<if test="url != null">
			url_ = #{url}
			</if>
		</set> WHERE id_ = #{id}
	</update>
	
	<!-- 根据主键删除一条记录 -->
	<delete id="delete" >
		DELETE FROM short_url WHERE id_ = #{id} 
	</delete>
	
	<!-- 分页查询 -->
	<select id="queryPage" resultMap="ShortUrl" parameterType="map">
		SELECT * FROM short_url ORDER BY id_
		<include refid="global.limit"/>
	</select>
	
	<!-- 查询当前表的总记录数 -->
	<select id="queryCount" resultType="int">
		SELECT COUNT(*) FROM short_url
	</select>
</mapper>
