Record login for users

.sqlx/query-836bd296bffff9a2ec14e43ea6aa64a468aaf0914bd95297431320621b42e396.json

@@ -1,6 +1,6 @@
 {
   "db_name": "PostgreSQL",
-  "query": "\n        SELECT p.post_id, p.author_id, u.username AS author, p.title, p.content, p.published_at\n        FROM posts p\n        LEFT JOIN users u ON p.author_id = u.user_id\n        ORDER BY p.published_at DESC\n        LIMIT $1\n        OFFSET $2\n        ",
+  "query": "\n        SELECT p.post_id, p.author_id, u.username AS author,\n               p.title, p.content, p.published_at, p.last_modified\n        FROM posts p\n        LEFT JOIN users u ON p.author_id = u.user_id\n        ORDER BY p.published_at DESC\n        LIMIT $1\n        OFFSET $2\n        ",
   "describe": {
     "columns": [
       {
@@ -32,6 +32,11 @@
         "ordinal": 5,
         "name": "published_at",
         "type_info": "Timestamptz"
+      },
+      {
+        "ordinal": 6,
+        "name": "last_modified",
+        "type_info": "Timestamptz"
       }
     ],
     "parameters": {
@@ -46,8 +51,9 @@
       false,
       false,
       false,
-      false
+      false,
+      true
     ]
   },
-  "hash": "0463e392b69c5a82a64b4fa47fcf8f0abc63fa8ee77bdf60b4f6fdaca8b77e5a"
+  "hash": "836bd296bffff9a2ec14e43ea6aa64a468aaf0914bd95297431320621b42e396"
 }

.sqlx/query-aef1e780d14be61aa66ae8771309751741068694b291499ee1371de693c6a654.json

@@ -1,16 +1,17 @@
 {
   "db_name": "PostgreSQL",
-  "query": "\n                UPDATE posts\n                SET title = $1, content = $2 WHERE post_id = $3\n                ",
+  "query": "\n                UPDATE posts\n                SET title = $1, content = $2, last_modified = $3 WHERE post_id = $4\n                ",
   "describe": {
     "columns": [],
     "parameters": {
       "Left": [
         "Text",
         "Text",
+        "Timestamptz",
         "Uuid"
       ]
     },
     "nullable": []
   },
-  "hash": "790175eabe78857d16f1890ef4a1cd71f3a9c5f3e98a7c00553196f7a48d3bc3"
+  "hash": "aef1e780d14be61aa66ae8771309751741068694b291499ee1371de693c6a654"
 }

.sqlx/query-c545267390019d45c5b4b32caf6c46928ffc7bdac46828cf7f1104ef67f42391.json

@@ -1,6 +1,6 @@
 {
   "db_name": "PostgreSQL",
-  "query": "\n        SELECT p.author_id, u.username as author, p.post_id, p.title, p.content, p.published_at\n        FROM posts p\n        INNER JOIN users u ON p.author_id = u.user_id\n        WHERE p.author_id = $1\n        ORDER BY p.published_at DESC\n        ",
+  "query": "\n        SELECT p.author_id, u.username as author,\n               p.post_id, p.title, p.content, p.published_at, p.last_modified\n        FROM posts p\n        INNER JOIN users u ON p.author_id = u.user_id\n        WHERE p.author_id = $1\n        ORDER BY p.published_at DESC\n        ",
   "describe": {
     "columns": [
       {
@@ -32,6 +32,11 @@
         "ordinal": 5,
         "name": "published_at",
         "type_info": "Timestamptz"
+      },
+      {
+        "ordinal": 6,
+        "name": "last_modified",
+        "type_info": "Timestamptz"
       }
     ],
     "parameters": {
@@ -45,8 +50,9 @@
       false,
       false,
       false,
-      false
+      false,
+      true
     ]
   },
-  "hash": "35ef2d2ed8b1477aebf642fe0f7e7dfc51157611de2da3ed45aed1fcbdf247b0"
+  "hash": "c545267390019d45c5b4b32caf6c46928ffc7bdac46828cf7f1104ef67f42391"
 }

.sqlx/query-ccffe61c27508d32cf43556a8bffa465f24fec8416a4884ead4eafd324feea72.json

@@ -1,6 +1,6 @@
 {
   "db_name": "PostgreSQL",
-  "query": "\n        SELECT p.post_id, p.author_id, u.username AS author, p.title, p.content, p.published_at\n        FROM posts p\n        LEFT JOIN users u ON p.author_id = u.user_id\n        WHERE p.post_id = $1\n        ",
+  "query": "\n        SELECT p.post_id, p.author_id, u.username AS author,\n               p.title, p.content, p.published_at, last_modified\n        FROM posts p\n        LEFT JOIN users u ON p.author_id = u.user_id\n        WHERE p.post_id = $1\n        ",
   "describe": {
     "columns": [
       {
@@ -32,6 +32,11 @@
         "ordinal": 5,
         "name": "published_at",
         "type_info": "Timestamptz"
+      },
+      {
+        "ordinal": 6,
+        "name": "last_modified",
+        "type_info": "Timestamptz"
       }
     ],
     "parameters": {
@@ -45,8 +50,9 @@
       false,
       false,
       false,
-      false
+      false,
+      true
     ]
   },
-  "hash": "3b9af6d6aeed0d4550e7cc2d13a7923cfa3658c3bc4ab7b881c2147218db3d82"
+  "hash": "ccffe61c27508d32cf43556a8bffa465f24fec8416a4884ead4eafd324feea72"
 }

migrations/20251009173005_add_last_modified_to_posts.sql

@@ -0,0 +1,2 @@
+ALTER TABLE posts
+ADD COLUMN last_modified TIMESTAMPTZ;

migrations/20251009180347_create_user_logins_table.sql

@@ -0,0 +1,5 @@
+CREATE TABLE user_logins (
+    id BIGSERIAL PRIMARY KEY,
+    user_id UUID NOT NULL REFERENCES users (user_id) ON DELETE CASCADE,
+    login_time TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);

src/domain/post.rs

@@ -8,6 +8,7 @@ pub struct PostEntry {
     pub title: String,
     pub content: String,
     pub published_at: DateTime<Utc>,
+    pub last_modified: Option<DateTime<Utc>>,
 }
 
 impl PostEntry {
@@ -15,6 +16,10 @@ impl PostEntry {
         self.published_at.format("%B %d, %Y").to_string()
     }
 
+    // pub fn last_modified(&self) -> String {
+    //     if let Some(last_modified) = self.last_modi
+    // }
+
     pub fn to_html(&self) -> anyhow::Result<String> {
         match markdown::to_html_with_options(&self.content, &markdown::Options::gfm()) {
             Ok(content) => Ok(content),

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

src/templates.rs

@@ -5,6 +5,7 @@ use crate::{
 };
 use askama::Template;
 use axum::response::{Html, IntoResponse};
+use chrono::{DateTime, Utc};
 use uuid::Uuid;
 
 pub struct HtmlTemplate<T>(pub T);
@@ -25,8 +26,9 @@ where
 #[template(path = "user/profile.html")]
 pub struct UserTemplate {
     pub user: UserEntry,
-    pub session_username: Option<String>,
+    pub session_user_id: Option<Uuid>,
     pub posts: Vec<PostEntry>,
+    pub last_seen: Option<DateTime<Utc>>,
 }
 
 #[derive(Template)]

templates/posts/page.html

@@ -3,8 +3,8 @@
 {% block content %}
     <div class="max-w-3xl mx-auto">
         <article>
-            <header class="mb-4">
-                <h1 class="text-4xl font-bold text-gray-900 mb-4 leading-tight">{{ post.title }}</h1>
+            <header class="mb-4 space-y-4">
+                <h1 class="text-4xl font-bold text-gray-900 leading-tight">{{ post.title }}</h1>
                 <div class="flex flex-col sm:flex-row sm:items-center sm:justify-between text-sm text-gray-600">
                     <div class="flex items-center space-x-4">
                         <div class="flex items-center">
@@ -46,6 +46,9 @@
                         </div>
                     {% endif %}
                 </div>
+                {% if let Some(modified) = post.last_modified %}
+                    <span class="text-sm italic text-gray-500">Last modified on {{ modified.format("%B %d, %Y") }}, at {{ modified.format("%H:%M") }}</span>
+                {% endif %}
             </header>
             {% if session_user_id.as_ref() == Some(post.author_id) %}
                 <div id="edit-form"

templates/user/profile.html

@@ -1,55 +1,63 @@
 {% extends "base.html" %}
 {% block title %}{{ user.username }}{% endblock %}
 {% block content %}
-<div class="max-w-4xl mx-auto p-4 sm:p-6">
-    <div class="bg-white rounded-lg shadow-md border border-gray-200 p-8 mb-6">
-        <div class="flex flex-col sm:flex-row items-center sm:items-start gap-6">
-            <div class="flex-shrink-0">
-                <div class="w-24 h-24 bg-gradient-to-br from-blue-500 to-indigo-600 rounded-full flex items-center justify-center text-white text-3xl font-bold shadow-lg">
-                    {{ user.username }}
+    <div class="max-w-4xl mx-auto p-4 sm:p-6">
+        <div class="bg-white rounded-2xl shadow-sm border border-gray-200 p-6 sm:p-8 space-y-6">
+            <div class="flex flex-col sm:flex-row items-center sm:items-start gap-6">
+                <div class="flex-shrink-0">
+                    <div class="w-24 h-24 rounded-full bg-gradient-to-br from-blue-500 to-indigo-600 flex items-center justify-center text-white text-3xl font-bold shadow-md">
+                        {{ user.username }}
+                    </div>
                 </div>
-            </div>
-            <div class="flex-1 text-center sm:text-left">
-                <div class="flex flex-col sm:flex-row sm:items-center gap-2 mb-2">
-                    <h1 class="text-3xl font-bold text-gray-900">{{ user.full_name.as_deref().unwrap_or(user.username)
-                        }}</h1>
-                    {% if user.is_admin() %}
-                    <svg class="w-6 h-6 text-blue-600 flex-shrink-0 mx-auto sm:mx-0"
-                         fill="currentColor"
-                         viewBox="0 0 24 24">
-                        <path d="M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm0 10.99h7c-.53 4.12-3.28 7.79-7 8.94V12H5V6.3l7-3.11v8.8z"/>
-                    </svg>
+                <div class="flex-1 text-center sm:text-left space-y-2">
+                    <div class="flex flex-col sm:flex-row sm:items-center gap-2">
+                        <h1 class="text-3xl font-semibold text-gray-900 tracking-tight">
+                            {{ user.full_name.as_deref().unwrap_or(user.username) }}
+                        </h1>
+                        {% if user.is_admin() %}
+                            <svg class="w-5 h-5 text-blue-600 flex-shrink-0 mx-auto sm:mx-0"
+                                 fill="currentColor"
+                                 viewBox="0 0 24 24">
+                                <path d="M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4zm0 10.99h7c-.53 4.12-3.28 7.79-7 8.94V12H5V6.3l7-3.11v8.8z" />
+                            </svg>
+                        {% endif %}
+                    </div>
+                    {% if session_user_id.as_ref() == Some(user.user_id) %}
+                        <a href="/users/edit"
+                           class="inline-flex items-center text-sm font-medium text-blue-600 hover:text-blue-700 transition-colors">
+                            <svg class="w-4 h-4 mr-1.5"
+                                 fill="none"
+                                 viewBox="0 0 24 24"
+                                 stroke="currentColor">
+                                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z" />
+                            </svg>
+                            Edit
+                        </a>
+                    {% endif %}
+                    <p class="text-gray-500 text-lg">@{{ user.username }}</p>
+                    <div class="flex items-center justify-center sm:justify-start text-sm text-gray-500">
+                        <svg class="w-4 h-4 mr-1.5"
+                             fill="none"
+                             viewBox="0 0 24 24"
+                             stroke="currentColor">
+                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 7V3m8 4V3m-9 8h10M5 21h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v12a2 2 0 002 2z" />
+                        </svg>
+                        {{ user.formatted_date() }}
+                    </div>
+                    {% if let Some(last_seen) = last_seen %}
+                        <p class="text-sm italic text-gray-400">
+                            Last seen on {{ last_seen.format("%h %d, %Y") }} at {{ last_seen.format("%H:%M") }}
+                        </p>
                     {% endif %}
                 </div>
-                {% if session_username.as_deref() == Some(user.username) %}
-                <a href="/users/edit"
-                   class="inline-flex items-center text-sm text-blue-600 hover:text-blue-700 font-medium mb-3">
-                    <svg class="w-4 h-4 mr-1" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
-                              d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"/>
-                    </svg>
-                    Edit
-                </a>
-                {% endif %}
-                <p class="text-gray-500 text-lg mb-3">@{{ user.username }}</p>
-                <div class="flex items-center justify-center sm:justify-start text-sm text-gray-500">
-                    <svg class="w-4 h-4 mr-1.5"
-                         fill="none"
-                         viewBox="0 0 24 24"
-                         stroke="currentColor">
-                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
-                              d="M8 7V3m8 4V3m-9 8h10M5 21h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v12a2 2 0 002 2z"/>
-                    </svg>
-                    {{ user.formatted_date() }}
-                </div>
             </div>
+            {% if user.bio.is_some() %}
+                <div class="border-t border-gray-100 pt-6">
+                    <p class="text-gray-700 leading-relaxed whitespace-pre-line">{{ user.bio.as_deref().unwrap() }}</p>
+                </div>
+            {% endif %}
         </div>
-        {% if user.bio.is_some() %}
-        <div class="mt-6 pt-6 border-t border-gray-200">
-            <p class="text-gray-700 whitespace-pre-line">{{ user.bio.as_deref().unwrap() }}</p>
-        </div>
-        {% endif %}
+        <!-- Activity -->
+        <div class="mt-8">{% include "activity.html" %}</div>
     </div>
-    {% include "activity.html" %}
-</div>
 {% endblock %}