59 lines
2.0 KiB
MySQL
59 lines
2.0 KiB
MySQL
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-- ============================================
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-- 生产采购价变更记录表
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-- ============================================
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CREATE TABLE public.production_price_history (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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plan_id UUID NOT NULL REFERENCES public.production_plans(id) ON DELETE CASCADE,
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-- 变更信息
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old_price DECIMAL NOT NULL DEFAULT 0,
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new_price DECIMAL NOT NULL DEFAULT 0,
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change_amount DECIMAL NOT NULL DEFAULT 0,
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-- 操作人
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operator_id UUID REFERENCES auth.users(id) ON DELETE SET NULL,
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operator_name TEXT,
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-- 变更原因/备注
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change_reason TEXT,
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-- 时间
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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-- 添加索引
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CREATE INDEX idx_price_history_plan ON public.production_price_history(plan_id);
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CREATE INDEX idx_price_history_created ON public.production_price_history(created_at);
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-- 启用 RLS
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ALTER TABLE public.production_price_history ENABLE ROW LEVEL SECURITY;
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-- RLS 策略
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-- 采购商可以查看自己计划的价格变更记录
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CREATE POLICY purchaser_select_price_history ON public.production_price_history
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FOR SELECT USING (
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EXISTS (
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SELECT 1 FROM public.production_plans p
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WHERE p.id = production_price_history.plan_id
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AND p.purchaser_id = get_user_master_company_id()
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)
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);
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-- 纺织厂可以查看关联计划的价格变更记录
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CREATE POLICY textile_select_price_history ON public.production_price_history
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FOR SELECT USING (
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EXISTS (
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SELECT 1 FROM public.production_plans p
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JOIN public.plan_factories pf ON pf.plan_id = p.id
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WHERE p.id = production_price_history.plan_id
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AND pf.factory_id = get_user_master_company_id()
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)
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);
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-- 采购商可以创建价格变更记录
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CREATE POLICY purchaser_insert_price_history ON public.production_price_history
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FOR INSERT WITH CHECK (
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EXISTS (
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SELECT 1 FROM public.production_plans p
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WHERE p.id = production_price_history.plan_id
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AND p.purchaser_id = get_user_master_company_id()
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)
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);
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