feat: update diesel to 2.0

Cargo.toml

@@ -20,16 +20,16 @@ urlencoding = "2.1"
 toml = "0.5"
 rand = "0.8"
 regex = "1.6"
-rocket = { version = "0.5.0-rc.2", features = [ "json", "secrets" ] }
-rocket_sync_db_pools = { version = "0.1.0-rc.2", features = [ "diesel_postgres_pool" ] }
+rocket = { version = "0.5.0-rc.3", features = [ "json", "secrets" ] }
+rocket_sync_db_pools = { version = "0.1.0-rc.3", features = [ "diesel_postgres_pool" ] }
 serde = "1.0"
 serde_json = "1.0"
 serde_derive = "1.0"
 serde_urlencoded = "0.7"
 simple_logger = "4.0"
-diesel = { version = "1.4", features = ["postgres", "r2d2", "chrono"] }
-diesel-derive-enum = { version = "1", features = ["postgres"] }
-diesel_migrations = "1.4"
+diesel = { version = "2.0", features = ["postgres", "r2d2", "chrono"] }
+diesel-derive-enum = { version = "2.0", features = ["postgres"] }
+diesel_migrations = "2.0"
 tempfile = "3.1"
 parking_lot = { version = "0.12" }
 thiserror = "1.0"

src/lib.rs

@@ -39,6 +39,7 @@ pub mod models;
 pub mod token_store;
 pub mod util;
 
+use diesel_migrations::MigrationHarness;
 use lettre::message::Mailbox;
 use rocket::fairing::AdHoc;
 use rocket::figment::Figment;
@@ -64,6 +65,8 @@ pub struct DbConn(PgConnection);
 pub type ConcreteConnection = PgConnection;
 
 pub const ZAUTH_VERSION: &str = env!("CARGO_PKG_VERSION");
+pub const MIGRATIONS: diesel_migrations::EmbeddedMigrations =
+	embed_migrations!("migrations");
 
 #[get("/favicon.ico")]
 pub fn favicon() -> &'static str {
@@ -161,17 +164,14 @@ fn assemble(rocket: Rocket<Build>) -> Rocket<Build> {
 }
 
 async fn prepare_database(rocket: Rocket<Build>) -> Rocket<Build> {
-	// This macro from `diesel_migrations` defines an `embedded_migrations`
-	// module containing a function named `run` that runs the migrations in the
-	// specified directory, initializing the database.
-	embed_migrations!("migrations");
-
 	eprintln!("Requesting a database connection.");
 	let db = DbConn::get_one(&rocket).await.expect("database connection");
 	eprintln!("Running migrations.");
-	db.run(|conn| embedded_migrations::run(conn))
-		.await
-		.expect("diesel migrations");
+	db.run(|conn| {
+		conn.run_pending_migrations(MIGRATIONS)
+			.expect("diesel migrations");
+	})
+	.await;
 
 	if rocket.figment().profile() == "debug" {
 		eprintln!("Seeding database.");

src/main.rs

@@ -3,6 +3,6 @@ extern crate rocket;
 extern crate zauth;
 
 #[launch]
-fn zauth() -> _ {
+async fn zauth() -> _ {
 	zauth::prepare()
 }

src/models/client.rs

@@ -43,7 +43,7 @@ pub struct NewClient {
 }
 
 #[derive(Insertable, Debug, Clone)]
-#[table_name = "clients"]
+#[diesel(table_name = clients)]
 pub struct NewClientWithSecret {
 	pub name:   String,
 	pub secret: String,
@@ -76,7 +76,7 @@ impl Client {
 			secret: Self::generate_random_secret(),
 		};
 		db.run(move |conn| {
-			conn.transaction(|| {
+			conn.transaction(|conn| {
 				// Create a new client
 				diesel::insert_into(clients::table)
 					.values(&client)
@@ -111,7 +111,7 @@ impl Client {
 	pub async fn update(self, db: &DbConn) -> Result<Self> {
 		let id = self.id;
 		db.run(move |conn| {
-			conn.transaction(|| {
+			conn.transaction(|conn| {
 				// Update a client
 				diesel::update(clients::table.find(id))
 					.set(self)

src/models/mail.rs

@@ -35,7 +35,7 @@ pub struct Mail {
 }
 
 #[derive(Clone, Debug, Deserialize, FromForm, Insertable, Validate)]
-#[table_name = "mails"]
+#[diesel(table_name = mails)]
 pub struct NewMail {
 	pub author:  String,
 	#[validate(length(min = 3, max = 255))]
@@ -51,7 +51,7 @@ impl NewMail {
 		self.validate()?;
 
 		db.run(move |conn| {
-			conn.transaction::<_, DieselError, _>(|| {
+			conn.transaction::<_, DieselError, _>(|conn| {
 				// Insert the new mail
 				diesel::insert_into(mails::table)
 					.values(&self)

src/models/session.rs

@@ -26,9 +26,9 @@ pub mod schema {
 }
 
 #[derive(Serialize, AsChangeset, Queryable, Associations, Debug, Clone)]
-#[belongs_to(User)]
-#[belongs_to(Client)]
-#[table_name = "sessions"]
+#[diesel(belongs_to(User))]
+#[diesel(belongs_to(Client))]
+#[diesel(table_name = sessions)]
 pub struct Session {
 	pub id:         i32,
 	pub key:        Option<String>,
@@ -41,7 +41,7 @@ pub struct Session {
 }
 
 #[derive(Insertable, Debug, Clone)]
-#[table_name = "sessions"]
+#[diesel(table_name = sessions)]
 pub struct NewSession {
 	pub key:        Option<String>,
 	pub user_id:    i32,
@@ -66,7 +66,7 @@ impl Session {
 			expires_at,
 		};
 		db.run(move |conn| {
-			conn.transaction(|| {
+			conn.transaction(|conn| {
 				// Create a new session
 				diesel::insert_into(sessions::table)
 					.values(&session)
@@ -96,7 +96,7 @@ impl Session {
 			expires_at,
 		};
 		db.run(move |conn| {
-			conn.transaction(|| {
+			conn.transaction(|conn| {
 				// Create a new session
 				diesel::insert_into(sessions::table)
 					.values(&session)
@@ -112,7 +112,7 @@ impl Session {
 	pub async fn update(self, db: &DbConn) -> Result<Self> {
 		let id = self.id;
 		db.run(move |conn| {
-			conn.transaction(|| {
+			conn.transaction(|conn| {
 				// Update a session
 				diesel::update(sessions::table.find(id))
 					.set(self)

src/models/user.rs

@@ -69,8 +69,8 @@ pub mod schema {
 }
 
 #[derive(Validate, Serialize, AsChangeset, Queryable, Debug, Clone)]
-#[table_name = "users"]
-#[changeset_options(treat_none_as_null = "true")]
+#[diesel(table_name = users)]
+#[diesel(treat_none_as_null = true)]
 #[serde(crate = "rocket::serde")]
 pub struct User {
 	pub id: i32,
@@ -133,7 +133,7 @@ pub struct NewUser {
 }
 
 #[derive(Serialize, Insertable, Debug, Clone)]
-#[table_name = "users"]
+#[diesel(table_name = users)]
 struct PendingUserHashed {
 	username:             String,
 	hashed_password:      String,
@@ -147,7 +147,7 @@ struct PendingUserHashed {
 }
 
 #[derive(Serialize, Insertable, Debug, Clone)]
-#[table_name = "users"]
+#[diesel(table_name = users)]
 struct NewUserHashed {
 	username:        String,
 	hashed_password: String,
@@ -343,7 +343,7 @@ impl User {
 			last_login:      Utc::now().naive_utc(),
 		};
 		db.run(move |conn| {
-			conn.transaction(|| {
+			conn.transaction(|conn| {
 				// Create a new user
 				diesel::insert_into(users::table)
 					.values(&user)
@@ -388,7 +388,7 @@ impl User {
 			last_login:           Utc::now().naive_utc(),
 		};
 		db.run(move |conn| {
-			conn.transaction(|| {
+			conn.transaction(|conn| {
 				// Create a new user
 				diesel::insert_into(users::table)
 					.values(&user)
@@ -442,7 +442,7 @@ impl User {
 	pub async fn update(self, db: &DbConn) -> errors::Result<Self> {
 		let id = self.id;
 		db.run(move |conn| {
-			conn.transaction(|| {
+			conn.transaction(|conn| {
 				// Create a new user
 				diesel::update(users::table.find(id))
 					.set(self)