Rogee
dbfb08ed37
- Added CouponID field to Order model to track used coupons. - Updated order query generation to include CouponID. - Introduced UserCoupon model to manage user coupon associations. - Implemented query methods for UserCoupon to facilitate CRUD operations. - Updated query context and default query setup to include UserCoupon.
46 lines
2.0 KiB
SQL
46 lines
2.0 KiB
SQL
-- +goose Up
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-- +goose StatementBegin
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CREATE TABLE "coupons" (
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"id" BIGSERIAL PRIMARY KEY,
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"tenant_id" BIGINT NOT NULL DEFAULT 0, -- 租户ID
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"title" VARCHAR(255) NOT NULL, -- 优惠券标题
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"description" TEXT, -- 优惠券描述
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"type" VARCHAR(32) NOT NULL, -- 优惠券类型: fix_amount(固定金额), discount(折扣比率)
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"value" BIGINT NOT NULL, -- 优惠券面值 (固定金额为分，折扣比率为0-100)
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"min_order_amount" BIGINT NOT NULL DEFAULT 0, -- 最低订单金额门槛 (分)
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"max_discount" BIGINT, -- 最高抵扣金额 (分，针对折扣券)
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"total_quantity" INTEGER NOT NULL DEFAULT 0, -- 发行总量
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"used_quantity" INTEGER NOT NULL DEFAULT 0, -- 已使用数量
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"start_at" TIMESTAMPTZ, -- 开始生效时间
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"end_at" TIMESTAMPTZ, -- 过期失效时间
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"created_at" TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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"updated_at" TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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CREATE INDEX "idx_coupons_tenant_id" ON "coupons" ("tenant_id");
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CREATE TABLE "user_coupons" (
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"id" BIGSERIAL PRIMARY KEY,
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"user_id" BIGINT NOT NULL, -- 用户ID
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"coupon_id" BIGINT NOT NULL, -- 优惠券ID
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"order_id" BIGINT, -- 使用该优惠券的订单ID
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"status" VARCHAR(32) NOT NULL DEFAULT 'unused', -- 状态: unused(未使用), used(已使用), expired(已过期)
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"used_at" TIMESTAMPTZ, -- 使用时间
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"created_at" TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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CREATE INDEX "idx_user_coupons_user_id" ON "user_coupons" ("user_id");
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CREATE INDEX "idx_user_coupons_coupon_id" ON "user_coupons" ("coupon_id");
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-- Add CouponID to Orders table
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ALTER TABLE "orders" ADD COLUMN "coupon_id" BIGINT DEFAULT 0; -- 关联优惠券ID (0表示未使用)
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COMMENT ON COLUMN "orders"."coupon_id" IS '使用的优惠券ID (0表示未使用)';
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-- +goose StatementEnd
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-- +goose Down
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-- +goose StatementBegin
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ALTER TABLE "orders" DROP COLUMN IF EXISTS "coupon_id";
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DROP TABLE IF EXISTS "user_coupons";
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DROP TABLE IF EXISTS "coupons";
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-- +goose StatementEnd |