feat(delta): rewrite channel / message fetch

crates/core/database/src/util/reference.rs

@@ -7,7 +7,7 @@ use schemars::{
     JsonSchema,
 };
 
-use crate::{Bot, Channel, Database, Webhook};
+use crate::{Bot, Channel, Database, Message, Webhook};
 
 /// Reference to some object in the database
 #[derive(Serialize, Deserialize)]
@@ -32,6 +32,11 @@ impl Reference {
         db.fetch_channel(&self.id).await
     }
 
+    /// Fetch message from Ref
+    pub async fn as_message(&self, db: &Database) -> Result<Message> {
+        db.fetch_message(&self.id).await
+    }
+
     /// Fetch webhook from Ref
     pub async fn as_webhook(&self, db: &Database) -> Result<Webhook> {
         db.fetch_webhook(&self.id).await