feat: backend core - auth, user, role, permission, device, webhook, monitoring, cache, repository, service, middleware, API handlers

internal/repository/password_history.go

@@ -0,0 +1,58 @@
+package repository
+
+import (
+	"context"
+
+	"gorm.io/gorm"
+
+	"github.com/user-management-system/internal/domain"
+)
+
+// PasswordHistoryRepository 密码历史记录数据访问层
+type PasswordHistoryRepository struct {
+	db *gorm.DB
+}
+
+// NewPasswordHistoryRepository 创建密码历史记录数据访问层
+func NewPasswordHistoryRepository(db *gorm.DB) *PasswordHistoryRepository {
+	return &PasswordHistoryRepository{db: db}
+}
+
+// Create 创建密码历史记录
+func (r *PasswordHistoryRepository) Create(ctx context.Context, history *domain.PasswordHistory) error {
+	return r.db.WithContext(ctx).Create(history).Error
+}
+
+// GetByUserID 获取用户的密码历史记录（最近 N 条，按时间倒序）
+func (r *PasswordHistoryRepository) GetByUserID(ctx context.Context, userID int64, limit int) ([]*domain.PasswordHistory, error) {
+	var histories []*domain.PasswordHistory
+	err := r.db.WithContext(ctx).
+		Where("user_id = ?", userID).
+		Order("created_at DESC").
+		Limit(limit).
+		Find(&histories).Error
+	return histories, err
+}
+
+// DeleteOldRecords 删除超过 keepCount 条的旧记录（保留最新的 keepCount 条）
+func (r *PasswordHistoryRepository) DeleteOldRecords(ctx context.Context, userID int64, keepCount int) error {
+	// 找出要保留的最后一条记录的 ID
+	var ids []int64
+	err := r.db.WithContext(ctx).
+		Model(&domain.PasswordHistory{}).
+		Where("user_id = ?", userID).
+		Order("created_at DESC").
+		Limit(keepCount).
+		Pluck("id", &ids).Error
+	if err != nil {
+		return err
+	}
+	if len(ids) == 0 {
+		return nil
+	}
+
+	// 删除不在保留列表中的记录
+	return r.db.WithContext(ctx).
+		Where("user_id = ? AND id NOT IN ?", userID, ids).
+		Delete(&domain.PasswordHistory{}).Error
+}