fix

src/lib.rs

@@ -3,8 +3,10 @@ pub use model::historic::Historic;
 pub use model::reference::*;
 pub use model::valid::Validate;
 pub use model::Model;
+pub use model::Sort;
 pub use mongod_derive as derive;
 pub use mongodb;
+
 #[cfg(feature = "cache")]
 pub mod cache;
 #[cfg(feature = "cache")]

src/model/mod.rs

@@ -354,11 +354,19 @@ pub trait Model:
 ///     "sort_key": Sort::Ascending
 /// })).await.unwrap();
 /// ```
-#[repr(i8)]
-#[derive(serde::Serialize, serde::Deserialize, Debug)]
+#[derive(Debug)]
 pub enum Sort {
     /// Sort in ascending order
-    Ascending = 1,
+    Ascending,
     /// Sort in descending order
-    Descending = -1,
+    Descending,
+}
+
+impl Into<mongodb::bson::Bson> for Sort {
+    fn into(self) -> mongodb::bson::Bson {
+        match self {
+            Sort::Ascending => mongodb::bson::bson!(1),
+            Sort::Descending => mongodb::bson::bson!(-1),
+        }
+    }
 }