22 lines
804 B
XML
22 lines
804 B
XML
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<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="github.benjamin.equipreservebackend.mapper.DeviceMapper">
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<select id="getDeviceUsageStats" resultType="github.benjamin.equipreservebackend.vo.DeviceStatsVO">
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SELECT
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d.id AS deviceId,
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d.name AS deviceName,
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COUNT(*) AS usageCount,
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SUM(TIMESTAMPDIFF(DAY, r.start_time, r.end_time)) AS totalUsageDays
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FROM reservations r
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JOIN devices d ON r.device_id = d.id
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WHERE r.status IN ('APPROVED', 'APPROVED_ASSIST')
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AND r.start_time >= #{start}
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AND r.end_time < #{end}
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GROUP BY d.id
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ORDER BY totalUsageDays DESC
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</select>
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</mapper>
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