database: impl Any for NostrDatabase

This allows downcasting `NostrDatabase` trait to concrete database types.

Pull-Request: #918
Signed-off-by: Yuki Kishimoto <[email protected]>

Author: yukibtc

CHANGELOG.md

@@ -40,6 +40,7 @@
 
 - nostr: rework `NostrParser` ([Yuki Kishimoto] at https://github.com/rust-nostr/nostr/pull/899)
 - nostr: impl `Any` for `NostrSigner` ([Yuki Kishimoto] at https://github.com/rust-nostr/nostr/pull/918)
+- database: impl `Any` for `NostrDatabase` ([Yuki Kishimoto] at https://github.com/rust-nostr/nostr/pull/918)
 - pool: refine notification sending depending on event database saving status ([Yuki Kishimoto] at https://github.com/rust-nostr/nostr/pull/911)
 
 ### Added

crates/nostr-database/src/lib.rs

@@ -9,6 +9,7 @@
 #![warn(clippy::large_futures)]
 #![allow(clippy::mutable_key_type)] // TODO: remove when possible. Needed to suppress false positive for `BTreeSet<Event>`
 
+use std::any::Any;
 use std::collections::HashMap;
 use std::fmt::Debug;
 use std::sync::Arc;
@@ -140,7 +141,7 @@ where
 }
 
 /// Nostr (Events) Database
-pub trait NostrDatabase: Debug + Send + Sync {
+pub trait NostrDatabase: Any + Debug + Send + Sync {
     /// Name of the backend database used
     fn backend(&self) -> Backend;