feat(hole): add favorite/subscription count stats #183
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- Introduced `FavoriteCount` and `SubscriptionCount` fields to the `Hole` model with default values. - Added `RecalculateStats` method to update favorite and subscription stats for a hole, including database and cache updates. - Updated tests to cover recalculation logic and validate the new stats functionality.
…ing with transactional updates - Added `RemoveUserSubscription` to handle subscription removal with count updates. - Improved `AddUserSubscription` to ensure idempotency and update subscription count only when necessary. - Updated favorite management to include count adjustments for holes and favorite groups during add/remove operations. - Applied `dbresolver.Write` to enforce write transactions for database consistency. Signed-off-by: acture <[email protected]>
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实现了洞的收藏和订阅计数功能，以及相关的计数更新逻辑。
变更内容
favorite_count/subscription_count到 Hole 模型，默认值为 0recalculate_stats()，支持收藏/订阅数量的聚合更新（含 DB + cache）AddUserSubscription确保幂等性RemoveUserSubscription处理取消订阅dbresolver.Write保证写事务一致性为什么需要这个功能
测试情况
已添加相关测试用例并确保全部通过，覆盖了计数逻辑的各种情况。
Closes #182