migrations/2021-09-02-000740_create_tags/up.sql

@@ -1,11 +1,13 @@
 CREATE TABLE tags (
     id INTEGER PRIMARY KEY NOT NULL,
-    name TEXT NOT NULL
+    name TEXT NOT NULL,
+    created_time BIGINT NOT NULL
 );
 
 CREATE TABLE tagged_photo (
     id INTEGER PRIMARY KEY NOT NULL,
     photo_name TEXT NOT NULL,
     tag_id INTEGER NOT NULL,
+    created_time BIGINT NOT NULL,
     CONSTRAINT tagid FOREIGN KEY (tag_id) REFERENCES tags (id) ON DELETE CASCADE ON UPDATE CASCADE
 );

src/database/models.rs

@@ -34,12 +34,14 @@ pub struct Favorite {
 pub struct Tag {
     pub id: i32,
     pub name: String,
+    pub created_time: i64,
 }
 
 #[derive(Insertable, Clone, Debug)]
 #[table_name = "tags"]
 pub struct InsertTag {
     pub name: String,
+    pub created_time: i64,
 }
 
 #[derive(Insertable, Clone, Debug)]
@@ -47,6 +49,7 @@ pub struct InsertTag {
 pub struct InsertTaggedPhoto {
     pub tag_id: i32,
     pub photo_name: String,
+    pub created_time: i64,
 }
 
 #[derive(Queryable, Clone, Debug)]
@@ -54,4 +57,5 @@ pub struct TaggedPhoto {
     pub id: i32,
     pub photo_name: String,
     pub tag_id: i32,
+    pub created_time: i64,
 }

src/database/schema.rs

@@ -11,6 +11,7 @@ table! {
         id -> Integer,
         photo_name -> Text,
         tag_id -> Integer,
+        created_time -> BigInt,
     }
 }
 
@@ -18,6 +19,7 @@ table! {
     tags (id) {
         id -> Integer,
         name -> Text,
+        created_time -> BigInt,
     }
 }
 

src/main.rs

@@ -3,6 +3,7 @@ extern crate diesel;
 extern crate rayon;
 
 use actix_web_prom::PrometheusMetrics;
+use chrono::Utc;
 use futures::stream::StreamExt;
 use lazy_static::lazy_static;
 use prometheus::{self, IntGauge};
@@ -310,7 +311,10 @@ async fn add_tag(_: Claims, body: web::Json<AddTagRequest>) -> impl Responder {
                 Ok(t.id)
             } else {
                 match diesel::insert_into(tags::table)
-                    .values(InsertTag { name: tag.clone() })
+                    .values(InsertTag {
+                        name: tag.clone(),
+                        created_time: Utc::now().timestamp(),
+                    })
                     .execute(connection)
                     .and_then(|_| {
                         no_arg_sql_function!(
@@ -347,6 +351,7 @@ async fn add_tag(_: Claims, body: web::Json<AddTagRequest>) -> impl Responder {
                     .values(InsertTaggedPhoto {
                         tag_id,
                         photo_name: file_name.clone(),
+                        created_time: Utc::now().timestamp(),
                     })
                     .execute(connection)
                     .map(|_| {
@@ -384,7 +389,7 @@ async fn get_tags(_: Claims, request: web::Query<ThumbnailRequest>) -> impl Resp
     match tags::table
         .left_join(tagged_photo::table)
         .filter(tagged_photo::photo_name.eq(&request.path))
-        .select((tags::id, tags::name))
+        .select((tags::id, tags::name, tags::created_time))
         .get_results::<Tag>(&connect())
     {
         Ok(tags) => HttpResponse::Ok().json(tags),