Files
sub2api/backend/internal/service/user_group_rate.go
erio d648811233 feat(groups): add rate multipliers management modal
Add a dedicated modal in group management for viewing, adding, editing,
and deleting per-user rate multipliers within a group.

Backend:
- GET /admin/groups/:id/rate-multipliers - list entries with user details
- PUT /admin/groups/:id/rate-multipliers - batch sync (full replace)
- DELETE /admin/groups/:id/rate-multipliers - clear all entries
- Repository: GetByGroupID, SyncGroupRateMultipliers methods on
  user_group_rate_multipliers table (same table as user-side rates)

Frontend:
- New GroupRateMultipliersModal component with:
  - User search and add with email autocomplete
  - Editable rate column with local edit mode (cancel/save)
  - Batch adjust: multiply all rates by a factor
  - Clear all (local operation, requires save to persist)
  - Pagination (10/20/50 per page)
  - Platform icon with brand colors in group info bar
  - Unsaved changes indicator with revert option
- Unit tests for all three backend endpoints
2026-03-12 23:37:36 +08:00

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package service
import "context"
// UserGroupRateEntry 分组下用户专属倍率条目
type UserGroupRateEntry struct {
UserID int64 `json:"user_id"`
UserName string `json:"user_name"`
UserEmail string `json:"user_email"`
UserNotes string `json:"user_notes"`
UserStatus string `json:"user_status"`
RateMultiplier float64 `json:"rate_multiplier"`
}
// GroupRateMultiplierInput 批量设置分组倍率的输入条目
type GroupRateMultiplierInput struct {
UserID int64 `json:"user_id"`
RateMultiplier float64 `json:"rate_multiplier"`
}
// UserGroupRateRepository 用户专属分组倍率仓储接口
// 允许管理员为特定用户设置分组的专属计费倍率,覆盖分组默认倍率
type UserGroupRateRepository interface {
// GetByUserID 获取用户的所有专属分组倍率
// 返回 map[groupID]rateMultiplier
GetByUserID(ctx context.Context, userID int64) (map[int64]float64, error)
// GetByUserAndGroup 获取用户在特定分组的专属倍率
// 如果未设置专属倍率,返回 nil
GetByUserAndGroup(ctx context.Context, userID, groupID int64) (*float64, error)
// GetByGroupID 获取指定分组下所有用户的专属倍率
GetByGroupID(ctx context.Context, groupID int64) ([]UserGroupRateEntry, error)
// SyncUserGroupRates 同步用户的分组专属倍率
// rates: map[groupID]*rateMultipliernil 表示删除该分组的专属倍率
SyncUserGroupRates(ctx context.Context, userID int64, rates map[int64]*float64) error
// SyncGroupRateMultipliers 批量同步分组的用户专属倍率(替换整组数据)
SyncGroupRateMultipliers(ctx context.Context, groupID int64, entries []GroupRateMultiplierInput) error
// DeleteByGroupID 删除指定分组的所有用户专属倍率(分组删除时调用)
DeleteByGroupID(ctx context.Context, groupID int64) error
// DeleteByUserID 删除指定用户的所有专属倍率(用户删除时调用)
DeleteByUserID(ctx context.Context, userID int64) error
}