update:功能

absolute/path/to/file

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+<?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">
+<mapper namespace="com.ski.lichuan.mapper.TrailPositionMapper">
+
+    <resultMap id="BaseResultMap" type="com.ski.lichuan.model.dashboard.TrailPosition">
+        <id column="id" jdbcType="INTEGER" property="id"/>
+        <result column="trail_id" jdbcType="INTEGER" property="trailId"/>
+        <result column="position" jdbcType="VARCHAR" property="position"/>
+        <result column="name" jdbcType="VARCHAR" property="name"/>
+        <result column="snow_machine_id" jdbcType="INTEGER" property="snowMachineId"/>
+        <result column="snow_machine_status" jdbcType="INTEGER" property="snowMachineStatus"/>
+    </resultMap>
+
+    <select id="selectByTrailId" resultMap="BaseResultMap">
+        SELECT * FROM trail_position WHERE trail_id = #{trailId}
+    </select>
+
+    <select id="selectById" resultMap="BaseResultMap">
+        SELECT * FROM trail_position WHERE id = #{id}
+    </select>
+
+    <select id="selectAll" resultMap="BaseResultMap">
+        SELECT * FROM trail_position
+    </select>
+
+    <!-- 获取所有未绑定雪机的雪道位置信息 -->
+    <select id="selectUnboundPositions" resultMap="BaseResultMap">
+        SELECT * FROM trail_position WHERE snow_machine_id IS NULL
+    </select>
+
+    <select id="selectBoundPositions" resultMap="BaseResultMap">
+        SELECT * FROM trail_position WHERE snow_machine_id IS NOT NULL
+    </select>
+
+    <insert id="insert" keyColumn="id" keyProperty="id" useGeneratedKeys="true">
+        INSERT INTO trail_position (trail_id, position, name)
+        VALUES (#{trailId}, #{position}, #{name})
+    </insert>
+
+    <update id="update">
+        UPDATE trail_position
+        SET trail_id = #{trailId}, position = #{position}, name = #{name}
+        WHERE id = #{id}
+    </update>
+
+    <update id="clearSnowMachine">
+        UPDATE trail_position
+        SET snow_machine_status = 0, snow_machine_id = NULL
+        WHERE id = #{id}
+    </update>
+
+    <update id="updateSnowMachine">
+        UPDATE trail_position
+        SET snow_machine_status = #{snowMachineStatus}, snow_machine_id = #{snowMachineId}
+        WHERE id = #{id}
+    </update>
+
+    <!-- 根据雪道位置ID列表查询造雪机设备ID列表 -->
+    <select id="selectDeviceIdsByTrailPositionIds" resultType="java.lang.Integer">
+        SELECT snow_machine_id FROM trail_position WHERE id IN
+        <foreach collection="list" item="id" open="(" close=")" separator=",">
+            #{id}
+        </foreach>
+    </select>
+
+</mapper>