Initial commit of akmon project

create_simple_sensor_data.sql

@@ -0,0 +1,111 @@
+-- 学生健康数据展示用的简化传感器数据表
+-- 为了简化演示，我们创建一个统一的传感器数据表
+
+-- 创建简化的传感器数据表
+CREATE TABLE IF NOT EXISTS public.ss_sensor_data (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    user_id UUID NOT NULL REFERENCES public.ak_users(id) ON DELETE CASCADE,
+    sensor_type TEXT NOT NULL, -- 'temperature', 'heart_rate', 'oxygen_level', 'steps'
+    value NUMERIC NOT NULL,
+    unit TEXT, -- '°C', 'bpm', '%', 'steps'
+    recorded_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+    created_at TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+-- 创建索引以提高查询性能
+CREATE INDEX IF NOT EXISTS idx_ss_sensor_data_user_type_time 
+ON public.ss_sensor_data(user_id, sensor_type, recorded_at DESC);
+
+CREATE INDEX IF NOT EXISTS idx_ss_sensor_data_type_time 
+ON public.ss_sensor_data(sensor_type, recorded_at DESC);
+
+-- 插入示例数据（为演示用）
+-- 假设有一个学生用户ID
+DO $$
+DECLARE
+    demo_user_id UUID;
+    current_time TIMESTAMPTZ;
+BEGIN
+    -- 查找第一个学生用户ID
+    SELECT id INTO demo_user_id 
+    FROM public.ak_users 
+    WHERE role = 'student' 
+    LIMIT 1;
+    
+    -- 如果找到学生用户，插入示例数据
+    IF demo_user_id IS NOT NULL THEN
+        current_time := NOW();
+        
+        -- 插入体温数据（最近7天，每小时一条）
+        INSERT INTO public.ss_sensor_data (user_id, sensor_type, value, unit, recorded_at)
+        SELECT 
+            demo_user_id,
+            'temperature',
+            36.0 + (random() * 1.5), -- 36.0-37.5°C
+            '°C',
+            current_time - (interval '1 hour' * generate_series(0, 167))
+        FROM generate_series(0, 167) AS gs;
+        
+        -- 插入心率数据（最近7天，每30分钟一条）
+        INSERT INTO public.ss_sensor_data (user_id, sensor_type, value, unit, recorded_at)
+        SELECT 
+            demo_user_id,
+            'heart_rate',
+            60 + (random() * 40), -- 60-100 bpm
+            'bpm',
+            current_time - (interval '30 minutes' * generate_series(0, 335))
+        FROM generate_series(0, 335) AS gs;
+        
+        -- 插入血氧数据（最近7天，每2小时一条）
+        INSERT INTO public.ss_sensor_data (user_id, sensor_type, value, unit, recorded_at)
+        SELECT 
+            demo_user_id,
+            'oxygen_level',
+            95 + (random() * 5), -- 95-100%
+            '%',
+            current_time - (interval '2 hours' * generate_series(0, 83))
+        FROM generate_series(0, 83) AS gs;
+        
+        -- 插入步数数据（最近7天，每天一条）
+        INSERT INTO public.ss_sensor_data (user_id, sensor_type, value, unit, recorded_at)
+        SELECT 
+            demo_user_id,
+            'steps',
+            5000 + (random() * 10000), -- 5000-15000 steps
+            'steps',
+            current_time - (interval '1 day' * generate_series(0, 6))
+        FROM generate_series(0, 6) AS gs;
+        
+        RAISE NOTICE '成功为用户 % 插入示例传感器数据', demo_user_id;
+    ELSE
+        RAISE NOTICE '未找到学生用户，跳过示例数据插入';
+    END IF;
+END $$;
+
+-- 创建视图以便查询最新的传感器数据
+CREATE OR REPLACE VIEW public.v_latest_sensor_data AS
+WITH latest_readings AS (
+    SELECT 
+        user_id,
+        sensor_type,
+        value,
+        unit,
+        recorded_at,
+        ROW_NUMBER() OVER (PARTITION BY user_id, sensor_type ORDER BY recorded_at DESC) as rn
+    FROM public.ss_sensor_data
+)
+SELECT 
+    user_id,
+    sensor_type,
+    value,
+    unit,
+    recorded_at
+FROM latest_readings 
+WHERE rn = 1;
+
+-- 授予权限
+GRANT SELECT ON public.ss_sensor_data TO authenticated;
+GRANT SELECT ON public.v_latest_sensor_data TO authenticated;
+
+COMMENT ON TABLE public.ss_sensor_data IS '简化的传感器数据表，用于存储学生的健康监测数据';
+COMMENT ON VIEW public.v_latest_sensor_data IS '获取每个用户每种传感器类型的最新数据';