shanshanzhong147
d2f9289338
- 新增促销规则/规格促销价/使用记录模型与幂等迁移 - EvaluatePromo 支持 new_user/inactive_user/campaign 规则判定 - purchase/preCreate 接入促销判定：命中促销时跳过百分比折扣 - activate 激活后按 order_no 幂等写入 promo_usage - 订单模型和响应结构新增 promo_rule_id、promo_discount 字段 Co-authored-by: multica-agent <github@multica.ai>
49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
package promo
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import (
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"context"
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"github.com/redis/go-redis/v9"
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"gorm.io/gorm"
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)
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type RuleWithPrice struct {
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Rule
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PromoPrice int64 `gorm:"column:promo_price"`
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}
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type Model interface {
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QueryEligibleRules(ctx context.Context, subscribeId int64) ([]*RuleWithPrice, error)
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InsertUsage(ctx context.Context, data *Usage, tx ...*gorm.DB) error
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}
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type defaultPromoModel struct {
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db *gorm.DB
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}
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func NewModel(db *gorm.DB, _ *redis.Client) Model {
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return &defaultPromoModel{db: db}
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}
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func (m *defaultPromoModel) QueryEligibleRules(ctx context.Context, subscribeId int64) ([]*RuleWithPrice, error) {
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var list []*RuleWithPrice
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err := m.db.WithContext(ctx).
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Table("promo_rule AS pr").
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Select("pr.*, sp.promo_price").
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Joins("JOIN subscribe_promo AS sp ON sp.promo_rule_id = pr.id").
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Where("sp.subscribe_id = ? AND sp.promo_price > 0 AND pr.enabled = ?", subscribeId, true).
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Where("pr.deleted_at IS NULL").
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Order("pr.priority DESC").
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Order("pr.id ASC").
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Find(&list).Error
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return list, err
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}
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func (m *defaultPromoModel) InsertUsage(ctx context.Context, data *Usage, tx ...*gorm.DB) error {
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db := m.db.WithContext(ctx)
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if len(tx) > 0 {
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db = tx[0].WithContext(ctx)
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}
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return db.Model(&Usage{}).Create(data).Error
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}
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