新功能(#74): 新增促销系统模型层

Co-authored-by: multica-agent <github@multica.ai>
2026-05-26 22:11:02 -07:00
parent 5ebfe0a981
commit e61988d78f
14 changed files with 720 additions and 25 deletions
@@ -0,0 +1,106 @@
+package subscribe_promo
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"github.com/perfect-panel/server/pkg/cache"
+	"github.com/redis/go-redis/v9"
+	"gorm.io/gorm"
+)
+
+var _ Model = (*customSubscribePromoModel)(nil)
+
+var cacheSubscribePromoIdPrefix = "cache:subscribe_promo:id:"
+
+type (
+	Model interface {
+		subscribePromoModel
+		customSubscribePromoLogicModel
+	}
+
+	subscribePromoModel interface {
+		Insert(ctx context.Context, data *SubscribePromo, tx ...*gorm.DB) error
+		FindOne(ctx context.Context, id int64) (*SubscribePromo, error)
+		Update(ctx context.Context, data *SubscribePromo, tx ...*gorm.DB) error
+		Delete(ctx context.Context, id int64, tx ...*gorm.DB) error
+		Transaction(ctx context.Context, fn func(db *gorm.DB) error) error
+	}
+
+	customSubscribePromoModel struct {
+		*defaultSubscribePromoModel
+	}
+	defaultSubscribePromoModel struct {
+		cache.CachedConn
+		table string
+	}
+)
+
+func newSubscribePromoModel(db *gorm.DB, c *redis.Client) *defaultSubscribePromoModel {
+	return &defaultSubscribePromoModel{
+		CachedConn: cache.NewConn(db, c),
+		table:      "`subscribe_promo`",
+	}
+}
+
+func (m *defaultSubscribePromoModel) getCacheKeys(data *SubscribePromo) []string {
+	if data == nil {
+		return []string{}
+	}
+	return []string{fmt.Sprintf("%s%v", cacheSubscribePromoIdPrefix, data.Id)}
+}
+
+func (m *defaultSubscribePromoModel) Insert(ctx context.Context, data *SubscribePromo, tx ...*gorm.DB) error {
+	return m.ExecCtx(ctx, func(conn *gorm.DB) error {
+		if len(tx) > 0 {
+			conn = tx[0]
+		}
+		return conn.Create(data).Error
+	}, m.getCacheKeys(data)...)
+}
+
+func (m *defaultSubscribePromoModel) FindOne(ctx context.Context, id int64) (*SubscribePromo, error) {
+	key := fmt.Sprintf("%s%v", cacheSubscribePromoIdPrefix, id)
+	var resp SubscribePromo
+	err := m.QueryCtx(ctx, &resp, key, func(conn *gorm.DB, v interface{}) error {
+		return conn.Model(&SubscribePromo{}).Where("`id` = ?", id).First(v).Error
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (m *defaultSubscribePromoModel) Update(ctx context.Context, data *SubscribePromo, tx ...*gorm.DB) error {
+	old, err := m.FindOne(ctx, data.Id)
+	if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
+		return err
+	}
+	return m.ExecCtx(ctx, func(conn *gorm.DB) error {
+		if len(tx) > 0 {
+			conn = tx[0]
+		}
+		return conn.Save(data).Error
+	}, m.getCacheKeys(old)...)
+}
+
+func (m *defaultSubscribePromoModel) Delete(ctx context.Context, id int64, tx ...*gorm.DB) error {
+	data, err := m.FindOne(ctx, id)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil
+		}
+		return err
+	}
+	return m.ExecCtx(ctx, func(conn *gorm.DB) error {
+		if len(tx) > 0 {
+			conn = tx[0]
+		}
+		return conn.Delete(&SubscribePromo{}, id).Error
+	}, m.getCacheKeys(data)...)
+}
+
+func (m *defaultSubscribePromoModel) Transaction(ctx context.Context, fn func(db *gorm.DB) error) error {
+	return m.TransactCtx(ctx, fn)
+}
@@ -0,0 +1,84 @@
+package subscribe_promo
+
+import (
+	"context"
+	"time"
+
+	"github.com/perfect-panel/server/internal/model/promo_rule"
+	"github.com/redis/go-redis/v9"
+	"gorm.io/gorm"
+)
+
+type RulePromo struct {
+	Id          int64
+	SubscribeId int64
+	PromoRuleId int64
+	PromoPrice  int64
+	RuleName    string
+	RuleType    string
+	Params      promo_rule.JSONRawMessage
+	Priority    int64
+	StartTime   *time.Time
+	EndTime     *time.Time
+}
+
+type customSubscribePromoLogicModel interface {
+	FindOneBySubscribeAndRule(ctx context.Context, subscribeId, promoRuleId int64) (*SubscribePromo, error)
+	FindBySubscribeId(ctx context.Context, subscribeId int64) ([]*SubscribePromo, error)
+	FindByPromoRuleId(ctx context.Context, promoRuleId int64) ([]*SubscribePromo, error)
+	QueryEnabledBySubscribeId(ctx context.Context, subscribeId int64) ([]*RulePromo, error)
+}
+
+func NewModel(conn *gorm.DB, c *redis.Client) Model {
+	return &customSubscribePromoModel{
+		defaultSubscribePromoModel: newSubscribePromoModel(conn, c),
+	}
+}
+
+func (m *customSubscribePromoModel) FindOneBySubscribeAndRule(ctx context.Context, subscribeId, promoRuleId int64) (*SubscribePromo, error) {
+	var resp SubscribePromo
+	err := m.QueryNoCacheCtx(ctx, &resp, func(conn *gorm.DB, v interface{}) error {
+		return conn.Model(&SubscribePromo{}).
+			Where("subscribe_id = ? AND promo_rule_id = ?", subscribeId, promoRuleId).
+			First(v).Error
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}
+
+func (m *customSubscribePromoModel) FindBySubscribeId(ctx context.Context, subscribeId int64) ([]*SubscribePromo, error) {
+	var list []*SubscribePromo
+	err := m.QueryNoCacheCtx(ctx, &list, func(conn *gorm.DB, v interface{}) error {
+		return conn.Model(&SubscribePromo{}).
+			Where("subscribe_id = ?", subscribeId).
+			Order("id DESC").
+			Find(v).Error
+	})
+	return list, err
+}
+
+func (m *customSubscribePromoModel) FindByPromoRuleId(ctx context.Context, promoRuleId int64) ([]*SubscribePromo, error) {
+	var list []*SubscribePromo
+	err := m.QueryNoCacheCtx(ctx, &list, func(conn *gorm.DB, v interface{}) error {
+		return conn.Model(&SubscribePromo{}).
+			Where("promo_rule_id = ?", promoRuleId).
+			Order("id DESC").
+			Find(v).Error
+	})
+	return list, err
+}
+
+func (m *customSubscribePromoModel) QueryEnabledBySubscribeId(ctx context.Context, subscribeId int64) ([]*RulePromo, error) {
+	var list []*RulePromo
+	err := m.QueryNoCacheCtx(ctx, &list, func(conn *gorm.DB, v interface{}) error {
+		return conn.Table("subscribe_promo AS sp").
+			Select("sp.id, sp.subscribe_id, sp.promo_rule_id, sp.promo_price, pr.name AS rule_name, pr.type AS rule_type, pr.params, pr.priority, pr.start_time, pr.end_time").
+			Joins("JOIN promo_rule AS pr ON pr.id = sp.promo_rule_id AND pr.deleted_at IS NULL").
+			Where("sp.subscribe_id = ? AND pr.enabled = ?", subscribeId, true).
+			Order("pr.priority DESC, pr.id DESC").
+			Scan(v).Error
+	})
+	return list, err
+}
@@ -0,0 +1,16 @@
+package subscribe_promo
+
+import "time"
+
+type SubscribePromo struct {
+	Id          int64     `gorm:"type:bigint unsigned;primaryKey"`
+	SubscribeId int64     `gorm:"type:bigint unsigned;not null;index:uk_subscribe_rule,unique,priority:1;comment:Subscribe Id"`
+	PromoRuleId int64     `gorm:"type:bigint unsigned;not null;index:uk_subscribe_rule,unique,priority:2;index:idx_promo_rule_id;comment:Promo Rule Id"`
+	PromoPrice  int64     `gorm:"type:bigint;not null;default:0;comment:Promo Price"`
+	CreatedAt   time.Time `gorm:"<-:create;comment:Create Time"`
+	UpdatedAt   time.Time `gorm:"comment:Update Time"`
+}
+
+func (SubscribePromo) TableName() string {
+	return "subscribe_promo"
+}