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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE mapper
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PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<!-- 定义一个名为 OrderMapper 的映射器，与 com.mapper 包下的 OrderMapper 接口相对应 -->
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<mapper namespace="com.mapper.OrderMapper">
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<!-- 定义一个 resultMap，用于将查询结果映射到 Java 对象 com.entity.Order -->
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<resultMap type="com.entity.Order" id="BaseResultMap">
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<!-- 指定主键字段 order_id 映射到 Order 类的 order_id 属性 -->
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<id property="order_id" column="order_id" javaType="java.lang.String"/>
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<!-- 映射其他非主键字段 -->
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<result property="order_position" column="order_position" javaType="java.lang.String"/>
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<result property="order_state" column="order_state" javaType="java.lang.Integer"/>
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<result property="schedule_id" column="schedule_id" javaType="long"/>
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<result property="user_id" column="user_id" javaType="long"/>
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<result property="order_price" column="order_price" javaType="java.lang.Integer"/>
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<result property="order_time" column="order_time" javaType="java.util.Date"/>
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</resultMap>
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<!-- 根据订单 ID 查询单个订单 -->
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<select id="findOrderById" parameterType="java.lang.String" resultMap="BaseResultMap">
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select * from orderinfo where order_id = #{order_id}
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</select>
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<!-- 查询所有订单，并按订单时间降序排列 -->
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<select id="findAllOrders" resultMap="BaseResultMap">
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select * from orderinfo order by order_time desc
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</select>
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<!-- 根据日程表 ID 查询订单，排除状态为 2（可能表示已退款）的订单，并按订单时间降序排列 -->
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<select id="findOrdersByScheduleId" parameterType="long" resultMap="BaseResultMap">
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select * from orderinfo where schedule_id = #{schedule_id} and order_state != 2 order by order_time desc
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</select>
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<!-- 根据订单状态查询订单，并按订单时间降序排列 -->
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<select id="findOrdersByState" parameterType="int" resultMap="BaseResultMap">
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select * from orderinfo where order_state = #{order_state} order by order_time desc
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</select>
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<!-- 根据用户名查询该用户的订单，并按订单时间降序排列 -->
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<select id="findOrdersByUserName" parameterType="java.lang.String" resultMap="BaseResultMap">
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select orderinfo.* from orderinfo,user where orderinfo.user_id = user.user_id and user.user_name = #{user_name} order by order_time desc
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</select>
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<!-- 查询特定用户的待退款订单（假设状态 0 表示待退款），并按订单时间降序排列 -->
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<select id="findRefundOrderByUserName" parameterType="java.lang.String" resultMap="BaseResultMap">
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select orderinfo.* from orderinfo,user where orderinfo.user_id = user.user_id and user.user_name = #{user_name} and orderinfo.order_state = 0 order by order_time desc
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</select>
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<!-- 插入新订单记录 -->
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<insert id="addOrder" parameterType="com.entity.Order">
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insert into orderinfo(order_id,order_position,schedule_id,user_id,order_price,order_time)
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values(#{order_id},#{order_position},#{schedule_id},#{user_id},#{order_price},#{order_time})
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</insert>
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<!-- 更新订单状态为待退款（假设状态 0 表示待退款） -->
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<update id="updateOrderStateToRefund" parameterType="java.lang.String">
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update orderinfo set order_state = 0 where order_id = #{order_id}
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</update>
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<!-- 更新订单状态为已退款（假设状态 2 表示已退款） -->
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<update id="updateOrderStateToRefunded" parameterType="java.lang.String">
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update orderinfo set order_state = 2 where order_id = #{order_id}
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</update>
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</mapper> |
