serv-初始mapper

schoolNewsServ/ai/src/main/resources/mapper/AiConversationMapper.xml

@@ -0,0 +1,47 @@
+<?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="org.xyzh.ai.mapper.AiConversationMapper">
+
+    <!-- 基础结果映射 -->
+    <resultMap id="BaseResultMap" type="org.xyzh.common.dto.ai.TbAiConversation">
+        <id column="id" property="id" jdbcType="VARCHAR"/>
+        <result column="user_id" property="userID" jdbcType="VARCHAR"/>
+        <result column="title" property="title" jdbcType="VARCHAR"/>
+        <result column="status" property="status" jdbcType="INTEGER"/>
+        <result column="message_count" property="messageCount" jdbcType="INTEGER"/>
+        <result column="last_message_time" property="lastMessageTime" jdbcType="TIMESTAMP"/>
+        <result column="create_time" property="createTime" jdbcType="TIMESTAMP"/>
+        <result column="update_time" property="updateTime" jdbcType="TIMESTAMP"/>
+    </resultMap>
+
+    <!-- 基础字段 -->
+    <sql id="Base_Column_List">
+        id, user_id, title, status, message_count, last_message_time, 
+        create_time, update_time
+    </sql>
+
+    <!-- 通用条件 -->
+    <sql id="Where_Clause">
+        <where>
+            <if test="userID != null and userID != ''">
+                AND user_id = #{userID}
+            </if>
+            <if test="title != null and title != ''">
+                AND title LIKE CONCAT('%', #{title}, '%')
+            </if>
+            <if test="status != null">
+                AND status = #{status}
+            </if>
+        </where>
+    </sql>
+
+    <!-- selectAiConversations -->
+    <select id="selectAiConversations" resultMap="BaseResultMap">
+        SELECT 
+        <include refid="Base_Column_List"/>
+        FROM tb_ai_conversation
+        <include refid="Where_Clause"/>
+        ORDER BY last_message_time DESC, create_time DESC
+    </select>
+
+</mapper>