+ Adding serialize to db::Invite type

* Invite initialization using shorthand notation now

json-api/db/src/invites.rs

@@ -2,6 +2,8 @@ use mysql_async::{params, Pool, Conn};
 use mysql_async::prelude::Queryable;
 use mysql_async::error::Error as SqlError;
 
+use serde::Serialize;
+
 use async_trait::async_trait;
 
 use crate::{UBigInt, BigInt};
@@ -9,6 +11,7 @@ use crate::common::FromDB;
 use crate::{Response, no_conn};
 
 #[allow(dead_code)]
+#[derive(Serialize)]
 pub struct Invite {
     pub id: BigInt,
     pub uses: Option<BigInt>,
@@ -94,8 +97,8 @@ impl FromDB<Invite, bool> for Invite {
                 let mapping_r = query.map_and_drop(|row| {
                     let (id, uses): (BigInt, Option<BigInt>) = mysql_async::from_row(row);
                     Invite {
-                        id: id,
-                        uses: uses,
+                        id,
+                        uses,
                         expires: expirey_flag
                     }
                 }).await;
@@ -120,8 +123,8 @@ impl Invite {
 
         Invite {
             id: (Utc::now() + chrono::Duration::minutes(30)).timestamp(),
-            uses:  uses,
-            expires: expires
+            uses,
+            expires
         }
     }
     pub async fn add(&self, p: &Pool) -> Result<(), SqlError> {