Merge pull request #39 from munckymagik/actix-todo

actix-todo example

.travis.yml

@@ -37,6 +37,7 @@ script:
       cd async_db && cargo check && cd ..
       cd async_ex1 && cargo check && cd ..
       cd actix_redis && cargo check && cd ..
+      cd actix_todo && cargo check && cd ..
       cd basics && cargo check && cd ..
       cd cookie-auth && cargo check && cd ..
       cd cookie-auth-full && cargo check && cd ..

Cargo.toml

@@ -2,6 +2,7 @@
 members = [
   "./",
   "actix_redis",
+  "actix_todo",
   "async_db",
   "async_ex1",
   "basics",

actix_todo/.env

@@ -0,0 +1 @@
+DATABASE_URL=postgres://localhost/actix_todo

actix_todo/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+authors = ["Dan Munckton <dangit@munckfish.net>"]
+name = "actix-todo"
+version = "0.1.0"
+
+[dependencies]
+actix = "0.7.3"
+actix-web = "0.7.4"
+dotenv = "0.13.0"
+env_logger = "0.5.10"
+futures = "0.1.22"
+log = "0.4.3"
+serde = "1.0.69"
+serde_derive = "1.0.69"
+serde_json = "1.0.22"
+tera = "0.11.8"
+
+[dependencies.diesel]
+features = ["postgres", "r2d2"]
+version = "1.3.2"

actix_todo/README.md

@@ -0,0 +1,48 @@
+# actix-todo
+
+A port of the [Rocket Todo example](https://github.com/SergioBenitez/Rocket/tree/master/examples/todo) into [actix-web](https://actix.rs/). Except this uses PostgreSQL instead of SQLite.
+
+# Usage
+
+## Prerequisites
+
+* Rust >= 1.26
+* PostgreSQL >= 9.5
+
+## Change into the project sub-directory
+
+All instructions assume you have changed into this folder:
+
+```bash
+cd examples/actix_todo
+```
+
+## Set up the database
+
+Install the [diesel](http://diesel.rs) command-line tool including the `postgres` feature:
+
+```bash
+cargo install diesel_cli --no-default-features --features postgres
+```
+
+Check the contents of the `.env` file. If your database requires a password, update `DATABASE_URL` to be of the form:
+
+```.env
+DATABASE_URL=postgres://username:password@localhost/actix_todo
+```
+
+Then to create and set-up the database run:
+
+```bash
+diesel database setup
+```
+
+## Run the application
+
+To run the application execute:
+
+```bash
+cargo run
+```
+
+Then to view it in your browser navigate to: [http://localhost:8088/](http://localhost:8088/)

actix_todo/diesel.toml

@@ -0,0 +1,5 @@
+# For documentation on how to configure this file,
+# see diesel.rs/guides/configuring-diesel-cli
+
+[print_schema]
+file = "src/schema.rs"

actix_todo/migrations/00000000000000_diesel_initial_setup/down.sql

@@ -0,0 +1,6 @@
+-- This file was automatically created by Diesel to setup helper functions
+-- and other internal bookkeeping. This file is safe to edit, any future
+-- changes will be added to existing projects as new migrations.
+
+DROP FUNCTION IF EXISTS diesel_manage_updated_at(_tbl regclass);
+DROP FUNCTION IF EXISTS diesel_set_updated_at();

actix_todo/migrations/00000000000000_diesel_initial_setup/up.sql

@@ -0,0 +1,36 @@
+-- This file was automatically created by Diesel to setup helper functions
+-- and other internal bookkeeping. This file is safe to edit, any future
+-- changes will be added to existing projects as new migrations.
+
+
+
+
+-- Sets up a trigger for the given table to automatically set a column called
+-- `updated_at` whenever the row is modified (unless `updated_at` was included
+-- in the modified columns)
+--
+-- # Example
+--
+-- ```sql
+-- CREATE TABLE users (id SERIAL PRIMARY KEY, updated_at TIMESTAMP NOT NULL DEFAULT NOW());
+--
+-- SELECT diesel_manage_updated_at('users');
+-- ```
+CREATE OR REPLACE FUNCTION diesel_manage_updated_at(_tbl regclass) RETURNS VOID AS $$
+BEGIN
+    EXECUTE format('CREATE TRIGGER set_updated_at BEFORE UPDATE ON %s
+                    FOR EACH ROW EXECUTE PROCEDURE diesel_set_updated_at()', _tbl);
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE OR REPLACE FUNCTION diesel_set_updated_at() RETURNS trigger AS $$
+BEGIN
+    IF (
+        NEW IS DISTINCT FROM OLD AND
+        NEW.updated_at IS NOT DISTINCT FROM OLD.updated_at
+    ) THEN
+        NEW.updated_at := current_timestamp;
+    END IF;
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;

actix_todo/migrations/2018-07-05-163612_create_tasks_table/down.sql

@@ -0,0 +1 @@
+DROP TABLE tasks

actix_todo/migrations/2018-07-05-163612_create_tasks_table/up.sql

@@ -0,0 +1,5 @@
+CREATE TABLE tasks (
+  id SERIAL PRIMARY KEY,
+  description VARCHAR NOT NULL,
+  completed BOOLEAN NOT NULL DEFAULT 'f'
+);

actix_todo/src/api.rs

@@ -0,0 +1,176 @@
+use actix::prelude::Addr;
+use actix_web::middleware::Response;
+use actix_web::{
+    error, fs::NamedFile, http, AsyncResponder, Form, FutureResponse, HttpRequest,
+    HttpResponse, Path, Responder, Result,
+};
+use futures::{future, Future};
+use tera::{Context, Tera};
+
+use db::{AllTasks, CreateTask, DbExecutor, DeleteTask, ToggleTask};
+use session::{self, FlashMessage};
+
+pub struct AppState {
+    pub template: Tera,
+    pub db: Addr<DbExecutor>,
+}
+
+pub fn index(req: HttpRequest<AppState>) -> FutureResponse<HttpResponse> {
+    req.state()
+        .db
+        .send(AllTasks)
+        .from_err()
+        .and_then(move |res| match res {
+            Ok(tasks) => {
+                let mut context = Context::new();
+                context.add("tasks", &tasks);
+
+                //Session is set during operations on other endpoints
+                //that can redirect to index
+                if let Some(flash) = session::get_flash(&req)? {
+                    context.add("msg", &(flash.kind, flash.message));
+                    session::clear_flash(&req);
+                }
+
+                let rendered = req.state()
+                    .template
+                    .render("index.html.tera", &context)
+                    .map_err(|e| {
+                        error::ErrorInternalServerError(e.description().to_owned())
+                    })?;
+
+                Ok(HttpResponse::Ok().body(rendered))
+            }
+            Err(e) => Err(e),
+        })
+        .responder()
+}
+
+#[derive(Deserialize)]
+pub struct CreateForm {
+    description: String,
+}
+
+pub fn create(
+    (req, params): (HttpRequest<AppState>, Form<CreateForm>),
+) -> FutureResponse<HttpResponse> {
+    if params.description.is_empty() {
+        future::lazy(move || {
+            session::set_flash(
+                &req,
+                FlashMessage::error("Description cannot be empty"),
+            )?;
+            Ok(redirect_to("/"))
+        }).responder()
+    } else {
+        req.state()
+            .db
+            .send(CreateTask {
+                description: params.description.clone(),
+            })
+            .from_err()
+            .and_then(move |res| match res {
+                Ok(_) => {
+                    session::set_flash(
+                        &req,
+                        FlashMessage::success("Task successfully added"),
+                    )?;
+                    Ok(redirect_to("/"))
+                }
+                Err(e) => Err(e),
+            })
+            .responder()
+    }
+}
+
+#[derive(Deserialize)]
+pub struct UpdateParams {
+    id: i32,
+}
+
+#[derive(Deserialize)]
+pub struct UpdateForm {
+    _method: String,
+}
+
+pub fn update(
+    (req, params, form): (HttpRequest<AppState>, Path<UpdateParams>, Form<UpdateForm>),
+) -> FutureResponse<HttpResponse> {
+    match form._method.as_ref() {
+        "put" => toggle(req, params),
+        "delete" => delete(req, params),
+        unsupported_method => {
+            let msg = format!("Unsupported HTTP method: {}", unsupported_method);
+            future::err(error::ErrorBadRequest(msg)).responder()
+        }
+    }
+}
+
+fn toggle(
+    req: HttpRequest<AppState>,
+    params: Path<UpdateParams>,
+) -> FutureResponse<HttpResponse> {
+    req.state()
+        .db
+        .send(ToggleTask { id: params.id })
+        .from_err()
+        .and_then(move |res| match res {
+            Ok(_) => Ok(redirect_to("/")),
+            Err(e) => Err(e),
+        })
+        .responder()
+}
+
+fn delete(
+    req: HttpRequest<AppState>,
+    params: Path<UpdateParams>,
+) -> FutureResponse<HttpResponse> {
+    req.state()
+        .db
+        .send(DeleteTask { id: params.id })
+        .from_err()
+        .and_then(move |res| match res {
+            Ok(_) => {
+                session::set_flash(&req, FlashMessage::success("Task was deleted."))?;
+                Ok(redirect_to("/"))
+            }
+            Err(e) => Err(e),
+        })
+        .responder()
+}
+
+fn redirect_to(location: &str) -> HttpResponse {
+    HttpResponse::Found()
+        .header(http::header::LOCATION, location)
+        .finish()
+}
+
+pub fn bad_request<S: 'static>(
+    req: &HttpRequest<S>,
+    resp: HttpResponse,
+) -> Result<Response> {
+    let new_resp = NamedFile::open("static/errors/400.html")?
+        .set_status_code(resp.status())
+        .respond_to(req)?;
+    Ok(Response::Done(new_resp))
+}
+
+pub fn not_found<S: 'static>(
+    req: &HttpRequest<S>,
+    resp: HttpResponse,
+) -> Result<Response> {
+    let new_resp = NamedFile::open("static/errors/404.html")?
+        .set_status_code(resp.status())
+        .respond_to(req)?;
+    Ok(Response::Done(new_resp))
+}
+
+pub fn internal_server_error<S: 'static>(
+    req: &HttpRequest<S>,
+    resp: HttpResponse,
+) -> Result<Response> {
+    let new_resp = NamedFile::open("static/errors/500.html")?
+        .set_status_code(resp.status())
+        .respond_to(req)?;
+    Ok(Response::Done(new_resp))
+}

actix_todo/src/db.rs

@@ -0,0 +1,100 @@
+use std::ops::Deref;
+
+use actix::prelude::{Actor, Handler, Message, SyncContext};
+use actix_web::{error, Error};
+use diesel::pg::PgConnection;
+use diesel::r2d2::{ConnectionManager, Pool, PoolError, PooledConnection};
+
+use model::{NewTask, Task};
+
+type PgPool = Pool<ConnectionManager<PgConnection>>;
+type PgPooledConnection = PooledConnection<ConnectionManager<PgConnection>>;
+
+pub fn init_pool(database_url: &str) -> Result<PgPool, PoolError> {
+    let manager = ConnectionManager::<PgConnection>::new(database_url);
+    Pool::builder().build(manager)
+}
+
+pub struct DbExecutor(pub PgPool);
+
+impl DbExecutor {
+    pub fn get_conn(&self) -> Result<PgPooledConnection, Error> {
+        self.0.get().map_err(|e| error::ErrorInternalServerError(e))
+    }
+}
+
+impl Actor for DbExecutor {
+    type Context = SyncContext<Self>;
+}
+
+pub struct AllTasks;
+
+impl Message for AllTasks {
+    type Result = Result<Vec<Task>, Error>;
+}
+
+impl Handler<AllTasks> for DbExecutor {
+    type Result = Result<Vec<Task>, Error>;
+
+    fn handle(&mut self, _: AllTasks, _: &mut Self::Context) -> Self::Result {
+        Task::all(self.get_conn()?.deref())
+            .map_err(|_| error::ErrorInternalServerError("Error inserting task"))
+    }
+}
+
+pub struct CreateTask {
+    pub description: String,
+}
+
+impl Message for CreateTask {
+    type Result = Result<(), Error>;
+}
+
+impl Handler<CreateTask> for DbExecutor {
+    type Result = Result<(), Error>;
+
+    fn handle(&mut self, todo: CreateTask, _: &mut Self::Context) -> Self::Result {
+        let new_task = NewTask {
+            description: todo.description,
+        };
+        Task::insert(new_task, self.get_conn()?.deref())
+            .map(|_| ())
+            .map_err(|_| error::ErrorInternalServerError("Error inserting task"))
+    }
+}
+
+pub struct ToggleTask {
+    pub id: i32,
+}
+
+impl Message for ToggleTask {
+    type Result = Result<(), Error>;
+}
+
+impl Handler<ToggleTask> for DbExecutor {
+    type Result = Result<(), Error>;
+
+    fn handle(&mut self, task: ToggleTask, _: &mut Self::Context) -> Self::Result {
+        Task::toggle_with_id(task.id, self.get_conn()?.deref())
+            .map(|_| ())
+            .map_err(|_| error::ErrorInternalServerError("Error inserting task"))
+    }
+}
+
+pub struct DeleteTask {
+    pub id: i32,
+}
+
+impl Message for DeleteTask {
+    type Result = Result<(), Error>;
+}
+
+impl Handler<DeleteTask> for DbExecutor {
+    type Result = Result<(), Error>;
+
+    fn handle(&mut self, task: DeleteTask, _: &mut Self::Context) -> Self::Result {
+        Task::delete_with_id(task.id, self.get_conn()?.deref())
+            .map(|_| ())
+            .map_err(|_| error::ErrorInternalServerError("Error inserting task"))
+    }
+}

actix_todo/src/main.rs

@@ -0,0 +1,87 @@
+extern crate actix;
+extern crate actix_web;
+extern crate dotenv;
+extern crate env_logger;
+extern crate futures;
+#[macro_use]
+extern crate diesel;
+#[macro_use]
+extern crate log;
+#[macro_use]
+extern crate serde_derive;
+#[macro_use]
+extern crate tera;
+
+use actix::prelude::SyncArbiter;
+use actix_web::middleware::session::{CookieSessionBackend, SessionStorage};
+use actix_web::middleware::{ErrorHandlers, Logger};
+use actix_web::{dev::Resource, fs, http, server, App};
+use dotenv::dotenv;
+use std::env;
+use tera::Tera;
+
+mod api;
+mod db;
+mod model;
+mod schema;
+mod session;
+
+static SESSION_SIGNING_KEY: &[u8] = &[0; 32];
+const NUM_DB_THREADS: usize = 3;
+
+fn main() {
+    dotenv().ok();
+
+    std::env::set_var("RUST_LOG", "actix_todo=debug,actix_web=info");
+    env_logger::init();
+
+    // Start the Actix system
+    let system = actix::System::new("todo-app");
+
+    let database_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set");
+    let pool = db::init_pool(&database_url).expect("Failed to create pool");
+    let addr = SyncArbiter::start(NUM_DB_THREADS, move || db::DbExecutor(pool.clone()));
+
+    let app = move || {
+        debug!("Constructing the App");
+
+        let templates: Tera = compile_templates!("templates/**/*");
+
+        let session_store = SessionStorage::new(
+            CookieSessionBackend::signed(SESSION_SIGNING_KEY).secure(false),
+        );
+
+        let error_handlers = ErrorHandlers::new()
+            .handler(
+                http::StatusCode::INTERNAL_SERVER_ERROR,
+                api::internal_server_error,
+            )
+            .handler(http::StatusCode::BAD_REQUEST, api::bad_request)
+            .handler(http::StatusCode::NOT_FOUND, api::not_found);
+
+        let static_files = fs::StaticFiles::new("static/")
+            .expect("failed constructing static files handler");
+
+        let state = api::AppState {
+            template: templates,
+            db: addr.clone(),
+        };
+
+        App::with_state(state)
+            .middleware(Logger::default())
+            .middleware(session_store)
+            .middleware(error_handlers)
+            .route("/", http::Method::GET, api::index)
+            .route("/todo", http::Method::POST, api::create)
+            .resource("/todo/{id}", |r: &mut Resource<_>| {
+                r.post().with(api::update)
+            })
+            .handler("/static", static_files)
+    };
+
+    debug!("Starting server");
+    server::new(app).bind("localhost:8088").unwrap().start();
+
+    // Run actix system, this method actually starts all async processes
+    let _ = system.run();
+}

actix_todo/src/model.rs

@@ -0,0 +1,46 @@
+use diesel;
+use diesel::pg::PgConnection;
+use diesel::prelude::*;
+
+use schema::{
+    tasks, tasks::dsl::{completed as task_completed, tasks as all_tasks},
+};
+
+#[derive(Debug, Insertable)]
+#[table_name = "tasks"]
+pub struct NewTask {
+    pub description: String,
+}
+
+#[derive(Debug, Queryable, Serialize)]
+pub struct Task {
+    pub id: i32,
+    pub description: String,
+    pub completed: bool,
+}
+
+impl Task {
+    pub fn all(conn: &PgConnection) -> QueryResult<Vec<Task>> {
+        all_tasks.order(tasks::id.desc()).load::<Task>(conn)
+    }
+
+    pub fn insert(todo: NewTask, conn: &PgConnection) -> QueryResult<usize> {
+        diesel::insert_into(tasks::table)
+            .values(&todo)
+            .execute(conn)
+    }
+
+    pub fn toggle_with_id(id: i32, conn: &PgConnection) -> QueryResult<usize> {
+        let task = all_tasks.find(id).get_result::<Task>(conn)?;
+
+        let new_status = !task.completed;
+        let updated_task = diesel::update(all_tasks.find(id));
+        updated_task
+            .set(task_completed.eq(new_status))
+            .execute(conn)
+    }
+
+    pub fn delete_with_id(id: i32, conn: &PgConnection) -> QueryResult<usize> {
+        diesel::delete(all_tasks.find(id)).execute(conn)
+    }
+}

actix_todo/src/schema.rs

@@ -0,0 +1,7 @@
+table! {
+    tasks (id) {
+        id -> Int4,
+        description -> Varchar,
+        completed -> Bool,
+    }
+}

actix_todo/src/session.rs

@@ -0,0 +1,39 @@
+use actix_web::error::Result;
+use actix_web::middleware::session::RequestSession;
+use actix_web::HttpRequest;
+
+const FLASH_KEY: &str = "flash";
+
+pub fn set_flash<T>(request: &HttpRequest<T>, flash: FlashMessage) -> Result<()> {
+    request.session().set(FLASH_KEY, flash)
+}
+
+pub fn get_flash<T>(req: &HttpRequest<T>) -> Result<Option<FlashMessage>> {
+    req.session().get::<FlashMessage>(FLASH_KEY)
+}
+
+pub fn clear_flash<T>(req: &HttpRequest<T>) {
+    req.session().remove(FLASH_KEY);
+}
+
+#[derive(Deserialize, Serialize)]
+pub struct FlashMessage {
+    pub kind: String,
+    pub message: String,
+}
+
+impl FlashMessage {
+    pub fn success(message: &str) -> Self {
+        Self {
+            kind: "success".to_owned(),
+            message: message.to_owned(),
+        }
+    }
+
+    pub fn error(message: &str) -> Self {
+        Self {
+            kind: "error".to_owned(),
+            message: message.to_owned(),
+        }
+    }
+}

actix_todo/static/css/normalize.css

@@ -0,0 +1,427 @@
+/*! normalize.css v3.0.2 | MIT License | git.io/normalize */
+
+/**
+ * 1. Set default font family to sans-serif.
+ * 2. Prevent iOS text size adjust after orientation change, without disabling
+ *    user zoom.
+ */
+
+html {
+  font-family: sans-serif; /* 1 */
+  -ms-text-size-adjust: 100%; /* 2 */
+  -webkit-text-size-adjust: 100%; /* 2 */
+}
+
+/**
+ * Remove default margin.
+ */
+
+body {
+  margin: 0;
+}
+
+/* HTML5 display definitions
+   ========================================================================== */
+
+/**
+ * Correct `block` display not defined for any HTML5 element in IE 8/9.
+ * Correct `block` display not defined for `details` or `summary` in IE 10/11
+ * and Firefox.
+ * Correct `block` display not defined for `main` in IE 11.
+ */
+
+article,
+aside,
+details,
+figcaption,
+figure,
+footer,
+header,
+hgroup,
+main,
+menu,
+nav,
+section,
+summary {
+  display: block;
+}
+
+/**
+ * 1. Correct `inline-block` display not defined in IE 8/9.
+ * 2. Normalize vertical alignment of `progress` in Chrome, Firefox, and Opera.
+ */
+
+audio,
+canvas,
+progress,
+video {
+  display: inline-block; /* 1 */
+  vertical-align: baseline; /* 2 */
+}
+
+/**
+ * Prevent modern browsers from displaying `audio` without controls.
+ * Remove excess height in iOS 5 devices.
+ */
+
+audio:not([controls]) {
+  display: none;
+  height: 0;
+}
+
+/**
+ * Address `[hidden]` styling not present in IE 8/9/10.
+ * Hide the `template` element in IE 8/9/11, Safari, and Firefox < 22.
+ */
+
+[hidden],
+template {
+  display: none;
+}
+
+/* Links
+   ========================================================================== */
+
+/**
+ * Remove the gray background color from active links in IE 10.
+ */
+
+a {
+  background-color: transparent;
+}
+
+/**
+ * Improve readability when focused and also mouse hovered in all browsers.
+ */
+
+a:active,
+a:hover {
+  outline: 0;
+}
+
+/* Text-level semantics
+   ========================================================================== */
+
+/**
+ * Address styling not present in IE 8/9/10/11, Safari, and Chrome.
+ */
+
+abbr[title] {
+  border-bottom: 1px dotted;
+}
+
+/**
+ * Address style set to `bolder` in Firefox 4+, Safari, and Chrome.
+ */
+
+b,
+strong {
+  font-weight: bold;
+}
+
+/**
+ * Address styling not present in Safari and Chrome.
+ */
+
+dfn {
+  font-style: italic;
+}
+
+/**
+ * Address variable `h1` font-size and margin within `section` and `article`
+ * contexts in Firefox 4+, Safari, and Chrome.
+ */
+
+h1 {
+  font-size: 2em;
+  margin: 0.67em 0;
+}
+
+/**
+ * Address styling not present in IE 8/9.
+ */
+
+mark {
+  background: #ff0;
+  color: #000;
+}
+
+/**
+ * Address inconsistent and variable font size in all browsers.
+ */
+
+small {
+  font-size: 80%;
+}
+
+/**
+ * Prevent `sub` and `sup` affecting `line-height` in all browsers.
+ */
+
+sub,
+sup {
+  font-size: 75%;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
+}
+
+sup {
+  top: -0.5em;
+}
+
+sub {
+  bottom: -0.25em;
+}
+
+/* Embedded content
+   ========================================================================== */
+
+/**
+ * Remove border when inside `a` element in IE 8/9/10.
+ */
+
+img {
+  border: 0;
+}
+
+/**
+ * Correct overflow not hidden in IE 9/10/11.
+ */
+
+svg:not(:root) {
+  overflow: hidden;
+}
+
+/* Grouping content
+   ========================================================================== */
+
+/**
+ * Address margin not present in IE 8/9 and Safari.
+ */
+
+figure {
+  margin: 1em 40px;
+}
+
+/**
+ * Address differences between Firefox and other browsers.
+ */
+
+hr {
+  -moz-box-sizing: content-box;
+  box-sizing: content-box;
+  height: 0;
+}
+
+/**
+ * Contain overflow in all browsers.
+ */
+
+pre {
+  overflow: auto;
+}
+
+/**
+ * Address odd `em`-unit font size rendering in all browsers.
+ */
+
+code,
+kbd,
+pre,
+samp {
+  font-family: monospace, monospace;
+  font-size: 1em;
+}
+
+/* Forms
+   ========================================================================== */
+
+/**
+ * Known limitation: by default, Chrome and Safari on OS X allow very limited
+ * styling of `select`, unless a `border` property is set.
+ */
+
+/**
+ * 1. Correct color not being inherited.
+ *    Known issue: affects color of disabled elements.
+ * 2. Correct font properties not being inherited.
+ * 3. Address margins set differently in Firefox 4+, Safari, and Chrome.
+ */
+
+button,
+input,
+optgroup,
+select,
+textarea {
+  color: inherit; /* 1 */
+  font: inherit; /* 2 */
+  margin: 0; /* 3 */
+}
+
+/**
+ * Address `overflow` set to `hidden` in IE 8/9/10/11.
+ */
+
+button {
+  overflow: visible;
+}
+
+/**
+ * Address inconsistent `text-transform` inheritance for `button` and `select`.
+ * All other form control elements do not inherit `text-transform` values.
+ * Correct `button` style inheritance in Firefox, IE 8/9/10/11, and Opera.
+ * Correct `select` style inheritance in Firefox.
+ */
+
+button,
+select {
+  text-transform: none;
+}
+
+/**
+ * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
+ *    and `video` controls.
+ * 2. Correct inability to style clickable `input` types in iOS.
+ * 3. Improve usability and consistency of cursor style between image-type
+ *    `input` and others.
+ */
+
+button,
+html input[type="button"], /* 1 */
+input[type="reset"],
+input[type="submit"] {
+  -webkit-appearance: button; /* 2 */
+  cursor: pointer; /* 3 */
+}
+
+/**
+ * Re-set default cursor for disabled elements.
+ */
+
+button[disabled],
+html input[disabled] {
+  cursor: default;
+}
+
+/**
+ * Remove inner padding and border in Firefox 4+.
+ */
+
+button::-moz-focus-inner,
+input::-moz-focus-inner {
+  border: 0;
+  padding: 0;
+}
+
+/**
+ * Address Firefox 4+ setting `line-height` on `input` using `!important` in
+ * the UA stylesheet.
+ */
+
+input {
+  line-height: normal;
+}
+
+/**
+ * It's recommended that you don't attempt to style these elements.
+ * Firefox's implementation doesn't respect box-sizing, padding, or width.
+ *
+ * 1. Address box sizing set to `content-box` in IE 8/9/10.
+ * 2. Remove excess padding in IE 8/9/10.
+ */
+
+input[type="checkbox"],
+input[type="radio"] {
+  box-sizing: border-box; /* 1 */
+  padding: 0; /* 2 */
+}
+
+/**
+ * Fix the cursor style for Chrome's increment/decrement buttons. For certain
+ * `font-size` values of the `input`, it causes the cursor style of the
+ * decrement button to change from `default` to `text`.
+ */
+
+input[type="number"]::-webkit-inner-spin-button,
+input[type="number"]::-webkit-outer-spin-button {
+  height: auto;
+}
+
+/**
+ * 1. Address `appearance` set to `searchfield` in Safari and Chrome.
+ * 2. Address `box-sizing` set to `border-box` in Safari and Chrome
+ *    (include `-moz` to future-proof).
+ */
+
+input[type="search"] {
+  -webkit-appearance: textfield; /* 1 */
+  -moz-box-sizing: content-box;
+  -webkit-box-sizing: content-box; /* 2 */
+  box-sizing: content-box;
+}
+
+/**
+ * Remove inner padding and search cancel button in Safari and Chrome on OS X.
+ * Safari (but not Chrome) clips the cancel button when the search input has
+ * padding (and `textfield` appearance).
+ */
+
+input[type="search"]::-webkit-search-cancel-button,
+input[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
+}
+
+/**
+ * Define consistent border, margin, and padding.
+ */
+
+fieldset {
+  border: 1px solid #c0c0c0;
+  margin: 0 2px;
+  padding: 0.35em 0.625em 0.75em;
+}
+
+/**
+ * 1. Correct `color` not being inherited in IE 8/9/10/11.
+ * 2. Remove padding so people aren't caught out if they zero out fieldsets.
+ */
+
+legend {
+  border: 0; /* 1 */
+  padding: 0; /* 2 */
+}
+
+/**
+ * Remove default vertical scrollbar in IE 8/9/10/11.
+ */
+
+textarea {
+  overflow: auto;
+}
+
+/**
+ * Don't inherit the `font-weight` (applied by a rule above).
+ * NOTE: the default cannot safely be changed in Chrome and Safari on OS X.
+ */
+
+optgroup {
+  font-weight: bold;
+}
+
+/* Tables
+   ========================================================================== */
+
+/**
+ * Remove most spacing between table cells.
+ */
+
+table {
+  border-collapse: collapse;
+  border-spacing: 0;
+}
+
+td,
+th {
+  padding: 0;
+}

actix_todo/static/css/skeleton.css

@@ -0,0 +1,421 @@
+/*
+* Skeleton V2.0.4
+* Copyright 2014, Dave Gamache
+* www.getskeleton.com
+* Free to use under the MIT license.
+* http://www.opensource.org/licenses/mit-license.php
+* 12/29/2014
+*/
+
+
+/* Table of contents
+––––––––––––––––––––––––––––––––––––––––––––––––––
+- Grid
+- Base Styles
+- Typography
+- Links
+- Buttons
+- Forms
+- Lists
+- Code
+- Tables
+- Spacing
+- Utilities
+- Clearing
+- Media Queries
+*/
+
+
+/* Grid
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+.container {
+  position: relative;
+  width: 100%;
+  max-width: 960px;
+  margin: 0 auto;
+  padding: 0 20px;
+  box-sizing: border-box; }
+.column,
+.columns {
+  width: 100%;
+  float: left;
+  box-sizing: border-box; }
+
+/* For devices larger than 400px */
+@media (min-width: 400px) {
+  .container {
+    width: 85%;
+    padding: 0; }
+}
+
+/* For devices larger than 550px */
+@media (min-width: 550px) {
+  .container {
+    width: 80%; }
+  .column,
+  .columns {
+    margin-left: 4%; }
+  .column:first-child,
+  .columns:first-child {
+    margin-left: 0; }
+
+  .one.column,
+  .one.columns                    { width: 4.66666666667%; }
+  .two.columns                    { width: 13.3333333333%; }
+  .three.columns                  { width: 22%;            }
+  .four.columns                   { width: 30.6666666667%; }
+  .five.columns                   { width: 39.3333333333%; }
+  .six.columns                    { width: 48%;            }
+  .seven.columns                  { width: 56.6666666667%; }
+  .eight.columns                  { width: 65.3333333333%; }
+  .nine.columns                   { width: 74.0%;          }
+  .ten.columns                    { width: 82.6666666667%; }
+  .eleven.columns                 { width: 91.3333333333%; }
+  .twelve.columns                 { width: 100%; margin-left: 0; }
+
+  .one-third.column               { width: 30.6666666667%; }
+  .two-thirds.column              { width: 65.3333333333%; }
+
+  .one-half.column                { width: 48%; }
+
+  /* Offsets */
+  .offset-by-one.column,
+  .offset-by-one.columns          { margin-left: 8.66666666667%; }
+  .offset-by-two.column,
+  .offset-by-two.columns          { margin-left: 17.3333333333%; }
+  .offset-by-three.column,
+  .offset-by-three.columns        { margin-left: 26%;            }
+  .offset-by-four.column,
+  .offset-by-four.columns         { margin-left: 34.6666666667%; }
+  .offset-by-five.column,
+  .offset-by-five.columns         { margin-left: 43.3333333333%; }
+  .offset-by-six.column,
+  .offset-by-six.columns          { margin-left: 52%;            }
+  .offset-by-seven.column,
+  .offset-by-seven.columns        { margin-left: 60.6666666667%; }
+  .offset-by-eight.column,
+  .offset-by-eight.columns        { margin-left: 69.3333333333%; }
+  .offset-by-nine.column,
+  .offset-by-nine.columns         { margin-left: 78.0%;          }
+  .offset-by-ten.column,
+  .offset-by-ten.columns          { margin-left: 86.6666666667%; }
+  .offset-by-eleven.column,
+  .offset-by-eleven.columns       { margin-left: 95.3333333333%; }
+
+  .offset-by-one-third.column,
+  .offset-by-one-third.columns    { margin-left: 34.6666666667%; }
+  .offset-by-two-thirds.column,
+  .offset-by-two-thirds.columns   { margin-left: 69.3333333333%; }
+
+  .offset-by-one-half.column,
+  .offset-by-one-half.columns     { margin-left: 52%; }
+
+}
+
+
+/* Base Styles
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+/* NOTE
+html is set to 62.5% so that all the REM measurements throughout Skeleton
+are based on 10px sizing. So basically 1.5rem = 15px :) */
+html {
+  font-size: 62.5%; }
+body {
+  font-size: 1.5em; /* currently ems cause chrome bug misinterpreting rems on body element */
+  line-height: 1.6;
+  font-weight: 400;
+  font-family: "Raleway", "HelveticaNeue", "Helvetica Neue", Helvetica, Arial, sans-serif;
+  color: #222; }
+
+
+/* Typography
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+h1, h2, h3, h4, h5, h6 {
+  margin-top: 0;
+  margin-bottom: 2rem;
+  font-weight: 300; }
+h1 { font-size: 4.0rem; line-height: 1.2;  letter-spacing: -.1rem;}
+h2 { font-size: 3.6rem; line-height: 1.25; letter-spacing: -.1rem; }
+h3 { font-size: 3.0rem; line-height: 1.3;  letter-spacing: -.1rem; }
+h4 { font-size: 2.4rem; line-height: 1.35; letter-spacing: -.08rem; }
+h5 { font-size: 1.8rem; line-height: 1.5;  letter-spacing: -.05rem; }
+h6 { font-size: 1.5rem; line-height: 1.6;  letter-spacing: 0; }
+
+/* Larger than phablet */
+@media (min-width: 550px) {
+  h1 { font-size: 5.0rem; }
+  h2 { font-size: 4.2rem; }
+  h3 { font-size: 3.6rem; }
+  h4 { font-size: 3.0rem; }
+  h5 { font-size: 2.4rem; }
+  h6 { font-size: 1.5rem; }
+}
+
+p {
+  margin-top: 0; }
+
+
+/* Links
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+a {
+  color: #1EAEDB; }
+a:hover {
+  color: #0FA0CE; }
+
+
+/* Buttons
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+.button,
+button,
+input[type="submit"],
+input[type="reset"],
+input[type="button"] {
+  display: inline-block;
+  height: 38px;
+  padding: 0 30px;
+  color: #555;
+  text-align: center;
+  font-size: 11px;
+  font-weight: 600;
+  line-height: 38px;
+  letter-spacing: .1rem;
+  text-transform: uppercase;
+  text-decoration: none;
+  white-space: nowrap;
+  background-color: transparent;
+  border-radius: 4px;
+  border: 1px solid #bbb;
+  cursor: pointer;
+  box-sizing: border-box; }
+.button:hover,
+button:hover,
+input[type="submit"]:hover,
+input[type="reset"]:hover,
+input[type="button"]:hover,
+.button:focus,
+button:focus,
+input[type="submit"]:focus,
+input[type="reset"]:focus,
+input[type="button"]:focus {
+  color: #333;
+  border-color: #888;
+  outline: 0; }
+.button.button-primary,
+button.button-primary,
+button.primary,
+input[type="submit"].button-primary,
+input[type="reset"].button-primary,
+input[type="button"].button-primary {
+  color: #FFF;
+  background-color: #33C3F0;
+  border-color: #33C3F0; }
+.button.button-primary:hover,
+button.button-primary:hover,
+button.primary:hover,
+input[type="submit"].button-primary:hover,
+input[type="reset"].button-primary:hover,
+input[type="button"].button-primary:hover,
+.button.button-primary:focus,
+button.button-primary:focus,
+button.primary:focus,
+input[type="submit"].button-primary:focus,
+input[type="reset"].button-primary:focus,
+input[type="button"].button-primary:focus {
+  color: #FFF;
+  background-color: #1EAEDB;
+  border-color: #1EAEDB; }
+
+
+/* Forms
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+input[type="email"],
+input[type="number"],
+input[type="search"],
+input[type="text"],
+input[type="tel"],
+input[type="url"],
+input[type="password"],
+textarea,
+select {
+  height: 38px;
+  padding: 6px 10px; /* The 6px vertically centers text on FF, ignored by Webkit */
+  background-color: #fff;
+  border: 1px solid #D1D1D1;
+  border-radius: 4px;
+  box-shadow: none;
+  box-sizing: border-box; }
+/* Removes awkward default styles on some inputs for iOS */
+input[type="email"],
+input[type="number"],
+input[type="search"],
+input[type="text"],
+input[type="tel"],
+input[type="url"],
+input[type="password"],
+textarea {
+  -webkit-appearance: none;
+     -moz-appearance: none;
+          appearance: none; }
+textarea {
+  min-height: 65px;
+  padding-top: 6px;
+  padding-bottom: 6px; }
+input[type="email"]:focus,
+input[type="number"]:focus,
+input[type="search"]:focus,
+input[type="text"]:focus,
+input[type="tel"]:focus,
+input[type="url"]:focus,
+input[type="password"]:focus,
+textarea:focus,
+select:focus {
+  border: 1px solid #33C3F0;
+  outline: 0; }
+label,
+legend {
+  display: block;
+  margin-bottom: .5rem;
+  font-weight: 600; }
+fieldset {
+  padding: 0;
+  border-width: 0; }
+input[type="checkbox"],
+input[type="radio"] {
+  display: inline; }
+label > .label-body {
+  display: inline-block;
+  margin-left: .5rem;
+  font-weight: normal; }
+
+
+/* Lists
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+ul {
+  list-style: circle inside; }
+ol {
+  list-style: decimal inside; }
+ol, ul {
+  padding-left: 0;
+  margin-top: 0; }
+ul ul,
+ul ol,
+ol ol,
+ol ul {
+  margin: 1.5rem 0 1.5rem 3rem;
+  font-size: 90%; }
+li {
+  margin-bottom: 1rem; }
+
+
+/* Code
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+code {
+  padding: .2rem .5rem;
+  margin: 0 .2rem;
+  font-size: 90%;
+  white-space: nowrap;
+  background: #F1F1F1;
+  border: 1px solid #E1E1E1;
+  border-radius: 4px; }
+pre > code {
+  display: block;
+  padding: 1rem 1.5rem;
+  white-space: pre; }
+
+
+/* Tables
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+th,
+td {
+  padding: 12px 15px;
+  text-align: left;
+  border-bottom: 1px solid #E1E1E1; }
+th:first-child,
+td:first-child {
+  padding-left: 0; }
+th:last-child,
+td:last-child {
+  padding-right: 0; }
+
+
+/* Spacing
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+button,
+.button {
+  margin-bottom: 1rem; }
+input,
+textarea,
+select,
+fieldset {
+  margin-bottom: 1.5rem; }
+pre,
+blockquote,
+dl,
+figure,
+table,
+p,
+ul,
+ol,
+form {
+  margin-bottom: 2.5rem; }
+
+
+/* Utilities
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+.u-full-width {
+  width: 100%;
+  box-sizing: border-box; }
+.u-max-full-width {
+  max-width: 100%;
+  box-sizing: border-box; }
+.u-pull-right {
+  float: right; }
+.u-pull-left {
+  float: left; }
+
+
+/* Misc
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+hr {
+  margin-top: 3rem;
+  margin-bottom: 3.5rem;
+  border-width: 0;
+  border-top: 1px solid #E1E1E1; }
+
+
+/* Clearing
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+
+/* Self Clearing Goodness */
+.container:after,
+.row:after,
+.u-cf {
+  content: "";
+  display: table;
+  clear: both; }
+
+
+/* Media Queries
+–––––––––––––––––––––––––––––––––––––––––––––––––– */
+/*
+Note: The best way to structure the use of media queries is to create the queries
+near the relevant code. For example, if you wanted to change the styles for buttons
+on small devices, paste the mobile query code up in the buttons section and style it
+there.
+*/
+
+
+/* Larger than mobile */
+@media (min-width: 400px) {}
+
+/* Larger than phablet (also point when grid becomes active) */
+@media (min-width: 550px) {}
+
+/* Larger than tablet */
+@media (min-width: 750px) {}
+
+/* Larger than desktop */
+@media (min-width: 1000px) {}
+
+/* Larger than Desktop HD */
+@media (min-width: 1200px) {}

actix_todo/static/css/style.css

@@ -0,0 +1,58 @@
+.field-error {
+  border: 1px solid #ff0000 !important;
+}
+
+.field-error-msg {
+  color: #ff0000;
+  display: block;
+  margin: -10px 0 10px 0;
+}
+
+.field-success {
+  border: 1px solid #5AB953 !important;
+}
+
+.field-success-msg {
+  color: #5AB953;
+  display: block;
+  margin: -10px 0 10px 0;
+}
+
+span.completed {
+    text-decoration: line-through;
+}
+
+form.inline {
+  display: inline;
+}
+
+form.link,
+button.link {
+  display: inline;
+  color: #1EAEDB;
+  border: none;
+  outline: none;
+  background: none;
+  cursor: pointer;
+  padding: 0;
+  margin: 0 0 0 0;
+  height: inherit;
+  text-decoration: underline;
+  font-size: inherit;
+  text-transform: none;
+  font-weight: normal;
+  line-height: inherit;
+  letter-spacing: inherit;
+}
+
+form.link:hover, button.link:hover {
+  color: #0FA0CE;
+}
+
+button.small {
+  height: 20px;
+  padding: 0 10px;
+  font-size: 10px;
+  line-height: 20px;
+  margin: 0 2.5px;
+}

actix_todo/static/errors/400.html

@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>The server could not understand the request (400)</title>
+
+  <link href="//fonts.googleapis.com/css?family=Raleway:400,300,600" rel="stylesheet" type="text/css">
+  <link rel="stylesheet" href="/static/css/normalize.css">
+  <link rel="stylesheet" href="/static/css/skeleton.css">
+  <link rel="stylesheet" href="/static/css/style.css">
+</head>
+<body>
+  <div class="container">
+    <div class="row">
+      <h1>The server could not understand the request</h1>
+    </div>
+  </div>
+</body>
+</html>

actix_todo/static/errors/404.html

@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>The page you were looking for doesn't exist (404)</title>
+
+  <link href="//fonts.googleapis.com/css?family=Raleway:400,300,600" rel="stylesheet" type="text/css">
+  <link rel="stylesheet" href="/static/css/normalize.css">
+  <link rel="stylesheet" href="/static/css/skeleton.css">
+  <link rel="stylesheet" href="/static/css/style.css">
+</head>
+<body>
+  <div class="container">
+    <div class="row">
+      <h1>The page you were looking for doesn't exist.</h1>
+      <p>You may have mistyped the address or the page may have moved.</p>
+    </div>
+  </div>
+</body>
+</html>

actix_todo/static/errors/500.html

@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>Ooops (500)</title>
+
+  <link href="//fonts.googleapis.com/css?family=Raleway:400,300,600" rel="stylesheet" type="text/css">
+  <link rel="stylesheet" href="/static/css/normalize.css">
+  <link rel="stylesheet" href="/static/css/skeleton.css">
+  <link rel="stylesheet" href="/static/css/style.css">
+</head>
+<body>
+  <div class="container">
+    <div class="row">
+      <h1>Ooops ...</h1>
+      <p>How embarrassing!</p>
+      <p>Looks like something weird happened while processing your request.</p>
+      <p>Please try again in a few moments.</p>
+    </div>
+  </div>
+</body>
+</html>

actix_todo/templates/index.html.tera

@@ -0,0 +1,65 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <title>Actix Todo Example</title>
+
+    <link href="//fonts.googleapis.com/css?family=Raleway:400,300,600" rel="stylesheet" type="text/css">
+    <link rel="stylesheet" href="/static/css/normalize.css">
+    <link rel="stylesheet" href="/static/css/skeleton.css">
+    <link rel="stylesheet" href="/static/css/style.css">
+</head>
+<body>
+  <div class="container">
+    <p><!-- nothing to see here --></p>
+
+    <div class="row">
+      <h4>Actix Todo</h4>
+      <form action="/todo" method="post">
+        <div class="ten columns">
+          <input type="text" placeholder="enter a task description ..."
+            name="description" id="description" value="" autofocus
+            class="u-full-width {% if msg %}field-{{msg.0}}{% endif %}" />
+          {% if msg %}
+            <small class="field-{{msg.0}}-msg">
+               {{msg.1}}
+            </small>
+          {% endif %}
+        </div>
+        <div class="two columns">
+          <input type="submit" value="add task">
+        </div>
+      </form>
+    </div>
+
+    <div class="row">
+      <div class="twelve columns">
+        <ul>
+          {% for task in tasks %}
+            <li>
+              {% if task.completed %}
+                <span class="completed">{{task.description}}</span>
+                <form action="/todo/{{task.id}}" class="inline" method="post">
+                  <input type="hidden" name="_method" value="put" />
+                  <button type="submit" class="small">undo</button>
+                </form>
+                <form action="/todo/{{task.id}}" method="post" class="inline">
+                  <input type="hidden" name="_method" value="delete" />
+                  <button type="submit" class="primary small">delete</button>
+                </form>
+              {% else %}
+                <form action="/todo/{{task.id}}" class="link" method="post">
+                  <input type="hidden" name="_method" value="put" />
+                  <button type="submit" class="link">{{ task.description }}</button>
+                </form>
+              {% endif %}
+            </li>
+          {% endfor %}
+        </ul>
+      </div>
+    </div>
+  </div>
+</body>
+</html>