<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.gkhy.exam.system.mapper.ExStudentStudyMapper">
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<resultMap type="com.gkhy.exam.system.domain.ExStudentStudy" id="ExStudentStudyResult">
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<result property="id" column="id" />
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<result property="phaseId" column="phase_id" />
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<result property="courseId" column="course_id" />
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<result property="chapterId" column="chapter_id" />
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<result property="periodId" column="period_id" />
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<result property="studentId" column="student_id" />
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<result property="currentDuration" column="current_duration" />
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<result property="currentPage" column="current_page" />
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<result property="progress" column="progress" />
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<result property="createBy" column="create_by" />
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<result property="createTime" column="create_time" />
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<result property="updateBy" column="update_by" />
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<result property="updateTime" column="update_time" />
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<result property="remark" column="remark" />
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<result property="version" column="version" />
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<result property="courseName" column="course_name" />
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<result property="chapterName" column="chapter_mame" />
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<result property="periodName" column="period_name" />
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</resultMap>
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<sql id="selectStudentStudyVo">
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select a.id, a.phase_id, a.course_id, a.chapter_id, a.period_id,a.student_id,a.current_duration,a.current_page,a.progress,
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a.version, a.create_by, a.create_time, a.update_by, a.update_time, a.remark,b.name as course_name,d.name as chapter_mame,c.name as period_name
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from ex_student_study a
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left join ex_course b on b.id=a.course_id
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left join ex_course_chapter c on c.id=a.chapter_id
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left join ex_course_chapter_period d on d.id=a.period_id
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</sql>
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<delete id="deleteStudentStudyByPhaseId">
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delete from ex_student_study where phase_id=#{phaseId} and student_id=#{studentId}
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</delete>
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<select id="countByPhaseId" resultType="java.lang.Integer">
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select count(1) from ex_student_study where phase_id=#{phaseId} and student_id=#{studentId}
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</select>
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<select id="selectStudyByPhaseAndStudentId" resultMap="ExStudentStudyResult">
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<include refid="selectStudentStudyVo"/>
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where a.phase_id=#{phaseId} and a.student_id=#{studentId} and a.course_id=#{courseId} order by a.create_time desc
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</select>
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<select id="selectStudyByObject" resultType="com.gkhy.exam.system.domain.ExStudentStudy">
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select * from ex_student_study where phase_id=#{phaseId} and period_id=#{periodId} and student_id=#{studentId} limit 1
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</select>
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</mapper>
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