Record login for users

src/routes/login.rs

@@ -15,6 +15,8 @@ use axum::{
 };
 use axum::{http::StatusCode, response::Redirect};
 use secrecy::SecretString;
+use sqlx::PgPool;
+use uuid::Uuid;
 
 #[derive(serde::Deserialize)]
 pub struct LoginFormData {
@@ -50,6 +52,9 @@ pub async fn post_login(
     tracing::Span::current().record("username", tracing::field::display(&credentials.username));
     let (user_id, role) = validate_credentials(credentials, &connection_pool).await?;
     tracing::Span::current().record("user_id", tracing::field::display(&user_id));
+    record_login(&connection_pool, &user_id)
+        .await
+        .context("Failed to register new login event.")?;
 
     session.renew().await.context("Failed to renew session.")?;
     session
@@ -69,3 +74,11 @@ pub async fn post_login(
     headers.insert("HX-Redirect", "/dashboard".parse().unwrap());
     Ok((StatusCode::OK, headers).into_response())
 }
+
+#[tracing::instrument(name = "Recording new login event", skip_all, fields(user_id = %user_id))]
+async fn record_login(connection_pool: &PgPool, user_id: &Uuid) -> Result<(), sqlx::Error> {
+    sqlx::query!("INSERT INTO user_logins (user_id) VALUES ($1)", user_id)
+        .execute(connection_pool)
+        .await?;
+    Ok(())
+}

src/routes/posts.rs

@@ -17,6 +17,7 @@ use axum::{
     extract::State,
     response::{Html, IntoResponse, Redirect, Response},
 };
+use chrono::Utc;
 use sqlx::PgPool;
 use uuid::Uuid;
 use validator::Validate;
@@ -77,7 +78,8 @@ async fn get_posts(
     sqlx::query_as!(
         PostEntry,
         r#"
-        SELECT p.post_id, p.author_id, u.username AS author, p.title, p.content, p.published_at
+        SELECT p.post_id, p.author_id, u.username AS author,
+               p.title, p.content, p.published_at, p.last_modified
         FROM posts p
         LEFT JOIN users u ON p.author_id = u.user_id
         ORDER BY p.published_at DESC
@@ -99,7 +101,8 @@ pub async fn get_posts_page(
     sqlx::query_as!(
         PostEntry,
         r#"
-        SELECT p.post_id, p.author_id, u.username AS author, p.title, p.content, p.published_at
+        SELECT p.post_id, p.author_id, u.username AS author,
+               p.title, p.content, p.published_at, p.last_modified
         FROM posts p
         LEFT JOIN users u ON p.author_id = u.user_id
         ORDER BY p.published_at DESC
@@ -151,10 +154,11 @@ pub async fn update_post(
             sqlx::query!(
                 "
                 UPDATE posts
-                SET title = $1, content = $2 WHERE post_id = $3
+                SET title = $1, content = $2, last_modified = $3 WHERE post_id = $4
                 ",
                 form.title,
                 form.content,
+                Utc::now(),
                 post_id
             )
             .execute(&connection_pool)
@@ -257,7 +261,8 @@ async fn get_post_data(
     sqlx::query_as!(
         PostEntry,
         r#"
-        SELECT p.post_id, p.author_id, u.username AS author, p.title, p.content, p.published_at
+        SELECT p.post_id, p.author_id, u.username AS author,
+               p.title, p.content, p.published_at, last_modified
         FROM posts p
         LEFT JOIN users u ON p.author_id = u.user_id
         WHERE p.post_id = $1

src/routes/users.rs

@@ -91,7 +91,11 @@ pub async fn update_user(
         return Ok(template.into_response());
     }
     let updated_full_name = form.full_name.trim();
-    let bio = form.bio.trim();
+    let bio = {
+        let bio = form.bio.trim();
+        if bio.is_empty() { None } else { Some(bio) }
+    };
+
     sqlx::query!(
         "
         UPDATE users
@@ -255,13 +259,32 @@ pub async fn user_profile(
             let posts = fetch_user_posts(&connection_pool, &user.user_id)
                 .await
                 .context("Could not fetch user posts.")?;
-            let session_username = session
-                .get_username()
+            let session_user_id = session
+                .get_user_id()
                 .await
                 .context("Could not fetch session username.")?;
+            let profile_user_id =
+                sqlx::query!("SELECT user_id FROM users WHERE username = $1", username)
+                    .fetch_one(&connection_pool)
+                    .await
+                    .context("Could not fetch profile user id.")?
+                    .user_id;
+            let last_seen = sqlx::query!(
+                "
+                SELECT login_time FROM user_logins
+                WHERE user_id = $1
+                ORDER BY login_time DESC
+                ",
+                profile_user_id
+            )
+            .fetch_optional(&connection_pool)
+            .await
+            .context("Failed to fetch last user login")?
+            .map(|r| r.login_time);
             let template = HtmlTemplate(UserTemplate {
                 user,
-                session_username,
+                session_user_id,
+                last_seen,
                 posts,
             });
             Ok(template.into_response())
@@ -299,7 +322,8 @@ async fn fetch_user_posts(
     sqlx::query_as!(
         PostEntry,
         r#"
-        SELECT p.author_id, u.username as author, p.post_id, p.title, p.content, p.published_at
+        SELECT p.author_id, u.username as author,
+               p.post_id, p.title, p.content, p.published_at, p.last_modified
         FROM posts p
         INNER JOIN users u ON p.author_id = u.user_id
         WHERE p.author_id = $1