1 files changed, 7 insertions, 1 deletions
diff --git a/src/model/mod.rs b/src/model/mod.rs
index b5ffc69..6b6d9bf 100644
--- a/src/model/mod.rs
+++ b/src/model/mod.rs
@@ -35,7 +35,7 @@ use chrono::NaiveDateTime;
 use self::utils::*;
 use serde::de::Visitor;
 use std::collections::HashMap;
-use std::fmt::{Formatter, Result as FmtResult};
+use std::fmt::{Display, Formatter, Result as FmtResult};
 use std::sync::{Arc, RwLock};
 use internal::prelude::*;
 
@@ -79,6 +79,12 @@ macro_rules! id_u64 {
                 }
             }
 
+            impl Display for $name {
+                fn fmt(&self, f: &mut Formatter) -> FmtResult {
+                    Display::fmt(&self.0, f)
+                }
+            }
+
             impl<'de> Deserialize<'de> for $name {
                 fn deserialize<D: Deserializer<'de>>(deserializer: D) -> StdResult<Self, D::Error> {
                     deserializer.deserialize_u64(U64Visitor).map($name)