Add error logs for fn queries (#54)

* docs: update

* style: update

* docs: update

* docs: update

* docs: update

* docs: update

* feat: Add error logs for fn queries

* docs: update

* docs: update

Author: daoshenzzg

cachegeneric.go

@@ -200,6 +200,7 @@ func (w *T[K, V]) mQueryAndSetCache(ctx context.Context, miss map[string]K, fn f
 	c.statsHandler.IncrQuery()
 	fnValues, err := fn(ctx, missIds)
 	if err != nil {
+		logger.Error("mQueryAndSetCache#fn(%v) error(%v)", missIds, err)
 		c.statsHandler.IncrQueryFail(err)
 		return nil
 	}

docs/CN/Config.md

@@ -16,7 +16,7 @@
 | remote                     | `remote.Remote` 接口   | nil                  | remote 是分布式缓存，例如 Redis。也可以自定义，实现`remote.Remote`接口即可                                                                                               |
 | local                      | `local.Local` 接口     | nil                  | local 是内存缓存，例如 FreeCache、TinyLFU。也可以自定义，实现`local.Local`接口即可                                                                                       |
 | codec                      | string               | msgpack              | value的编码和解码方法。默认为 "msgpack"。可选：`json` \| `msgpack` \| `sonic`，也可以自定义，实现`encoding.Codec`接口并注册即可                                                    | 
-| errNotFound                | error                | nil                  | 缓存未命中时返回的错误，例：`gorm.ErrRecordNotFound`。用于防止缓存穿透（即缓存空对象）                                                                                           |
+| errNotFound                | error                | nil                  | 回源记录不存在时返回的错误，例：`gorm.ErrRecordNotFound`。用于防止缓存穿透（即缓存空对象）                                                                                         |
 | remoteExpiry               | `time.Duration`      | 1小时                  | 远程缓存 TTL，默认为 1 小时                                                                                                                                 |
 | notFoundExpiry             | `time.Duration`      | 1分钟                  | 缓存未命中时占位符缓存的过期时间。默认为 1 分钟                                                                                                                         |
 | offset                     | `time.Duration`      | (0,10]秒              | 缓存未命中时的过期时间抖动因子                                                                                                                                   |

docs/EN/Config.md

@@ -16,7 +16,7 @@
 | remote                     | `remote.Remote` interface | nil                        | Distributed cache, such as Redis.  Can be customized by implementing the `remote.Remote` interface.                                                                                                                                           |
 | local                      | `local.Local` interface   | nil                        | In-memory cache, such as FreeCache, TinyLFU. Can be customized by implementing the `local.Local` interface.                                                                                                                                   |
 | codec                      | string                    | msgpack                    | Encoding and decoding method for values. Defaults to "msgpack". Options: `json` \| `msgpack` \| `sonic`. Can be customized by implementing the `encoding.Codec` interface and registering it.                                                 |
-| errNotFound                | error                     | nil                        | Error returned when a cache miss occurs, e.g., `gorm.ErrRecordNotFound`. Used to prevent cache penetration (i.e., caching empty objects).                                                                                                     |
+| errNotFound                | error                     | nil                        | Error returned when an origin record is not found, e.g., `gorm.ErrRecordNotFound`. Used to prevent cache penetration (i.e., caching empty objects).                                                                                           |
 | remoteExpiry               | `time.Duration`           | 1 hour                     | Remote cache TTL, defaults to 1 hour.                                                                                                                                                                                                         |
 | notFoundExpiry             | `time.Duration`           | 1 minute                   | Expiration time for placeholder caches when a cache miss occurs. Defaults to 1 minute.                                                                                                                                                        |
 | offset                     | `time.Duration`           | (0,10] seconds             | Expiration time jitter factor for cache misses.                                                                                                                                                                                               |