feat: remove graphql and migrate web framework to actix-web alpha for using stable rust

Cargo.toml

@@ -7,8 +7,6 @@ license = "MIT"
 edition = "2018"
 
 [dependencies]
-rocket = "0.4.0"
-rocket_contrib = { version = "0.4.0", default-features = true, features = ["tera_templates"] }
 diesel = { version = "1.3.3", features = ["postgres", "r2d2", "chrono"] }
 dotenv = "0.9.0"
 r2d2 = "0.8"
@@ -19,8 +17,8 @@ tera = "*"
 pulldown-cmark = { version = "0.1.2", default-features = false }
 chrono = { version = "*", features = ["serde"] }
 rust-crypto = "^0.2"
-juniper = "0.11.1"
-juniper_codegen = "0.11.1"
-juniper_rocket = "0.2.0"
-rand = "0.6.0"
 rss = "1.6.1"
+
+actix-web="1.0.0-alpha.6"
+actix = "0.8.1"
+diesel_migrations = "1.4.0"

src/graphql/input.rs

@@ -1,22 +0,0 @@
-use crate::schema::{setting};
-
-#[derive(GraphQLInputObject)]
-#[graphql(description="modify a setting")]
-#[derive(Serialize, Insertable, AsChangeset)]
-#[table_name = "setting"]
-pub struct SettingInput {
-
-    #[graphql(description="the name of the setting")]
-    pub name: String,
-
-    #[graphql(description="new value of the setting")]
-    pub value: String,
-}
-
-#[derive(GraphQLInputObject)]
-#[graphql(description="delete article")]
-pub struct DeleteArticleInput {
-
-    #[graphql(description="id of article wanna delete")]
-    pub id: i32,
-}

src/graphql/mod.rs

@@ -1,17 +0,0 @@
-use juniper::RootNode;
-use juniper::Context;
-
-pub mod model;
-pub mod input;
-pub mod query;
-pub mod mutation;
-
-use crate::pg_pool::DbConn;
-
-
-pub struct Query;
-pub struct Mutation;
-
-impl Context for DbConn {}
-
-pub type Schema = RootNode<'static, Query, Mutation>;

src/graphql/model.rs

@@ -1,7 +0,0 @@
-
-#[derive(GraphQLEnum)]
-pub enum ArticlePublishStatus {
-    Published,
-    UnPublished,
-    All
-}

src/graphql/mutation.rs

@@ -1,18 +0,0 @@
-use crate::graphql::Mutation;
-use crate::pg_pool::DbConn;
-
-use crate::graphql::input::*;
-use crate::models::{Setting, Article};
-
-graphql_object!(Mutation: DbConn |&self| {
-
-    field modifySetting(&executor, input: SettingInput) -> Option<Setting> {
-        let conn = executor.context();
-        Setting::modify(&input, &conn)
-    }
-
-    field deleteArticle(&executor, input: DeleteArticleInput) -> bool {
-        let conn = executor.context();
-        Article::delete(input.id, &conn)
-    }
-});

src/graphql/query.rs

@@ -1,17 +0,0 @@
-use crate::graphql::Query;
-use crate::pg_pool::DbConn;
-use crate::models::Article;
-use crate::graphql::model::*;
-
-graphql_object!(Query: DbConn |&self| {
-    description: "The root query object of the schema"
-    
-    field users(&executor) -> Vec<i32> as "AllUsers" {
-        vec![1, 3, 4]
-    }
-
-    field articles(&executor, article_status: Option<ArticlePublishStatus>) -> Vec<Article> as "all article" {
-        let db_conn = executor.context();
-        Article::load_all(true, &db_conn)
-    }
-});

src/main.rs

@@ -1,76 +1,46 @@
 #![feature(proc_macro_hygiene, decl_macro, custom_attribute, plugin)]
-extern crate chrono;
-extern crate crypto;
+
 #[macro_use]
 extern crate diesel;
-extern crate dotenv;
-#[macro_use]
-extern crate juniper;
-#[macro_use]
-extern crate juniper_codegen;
-extern crate juniper_rocket;
-extern crate pulldown_cmark;
-extern crate r2d2;
-#[macro_use]
-extern crate rocket;
-#[macro_use]
-extern crate rocket_contrib;
-extern crate serde;
-#[macro_use]
-extern crate serde_derive;
-extern crate tera;
-
-extern crate rand;
 
+use actix_web::{
+    middleware::{cors::Cors, Logger},
+    App, HttpServer,
+};
+use diesel_migrations::embed_migrations;
 use dotenv::dotenv;
-use rocket_contrib::templates::Template;
+
+use crate::pg_pool::database_pool_establish;
+
 mod guard;
 mod models;
+mod modelss;
 mod pg_pool;
 mod request;
 mod response;
 mod routers;
 mod schema;
-mod graphql;
 
-use crate::graphql::{Schema, Query, Mutation};
+embed_migrations!();
 
-fn main() {
-    use crate::routers::{admin, article, catacher, graphql, rss};
+fn main() -> std::io::Result<()> {
+    let sys = actix::System::new("lemmy");
     dotenv().ok();
     let database_url = std::env::var("DATABASE_URL").expect("database_url must be set");
+    let pool = database_pool_establish(&database_url);
 
-    rocket::ignite()
-        .register(catchers![
-            catacher::not_found_catcher,
-            catacher::unauthorized,
-            ])
-        .manage(pg_pool::init(&database_url))
-        .manage(Schema::new(Query{}, Mutation{}))
-        .mount("/", routes![
-            article::index,
-            article::single_article,
-            article::get_article_by_url,
-            article::static_content,
+    embed_migrations::run(&poll.get());
 
-            rss::rss,
+    HttpServer::new(move || {
+        App::new()
+            .data(pool)
+            .wrap(Logger::default())
+            .wrap(Cors::default())
+    })
+    .bind(("127.0.0.1", 8000))?
+    .system_exit()
+    .start();
 
-            graphql::graphql_authorization,
-            graphql::graphiql,
-            graphql::get_graphql_handler,
-            graphql::post_graphql_handler
-            ])
-        .mount("/admin", routes![
-            admin::admin_login,
-            admin::admin_authentication,
-            admin::admin_index,
-            admin::article_edit,
-            admin::save_article,
-            admin::delete_article,
-            admin::article_creation,
-            admin::change_password,
-            admin::change_setting
-            ])
-        .attach(Template::fairing())
-        .launch();
+    sys.run();
+    Ok(())
 }

src/models/article.rs

@@ -0,0 +1,10 @@
+#[derive(Queryable, Debug, Serialize, Insertable, AsChangeset, GraphQLObject)]
+pub struct Article {
+    pub id: i32,
+    pub title: String,
+    pub body: String,
+    pub published: bool,
+    pub user_id: i32,
+    pub publish_at: NaiveDateTime,
+    pub url: Option<String>,
+}

src/models/mod.rs

@@ -0,0 +1,10 @@
+use diesel::pg::{Pg, PgConnection};
+use diesel::result::Error;
+
+pub trait CRUD<CreatedModel, UpdateModel, PK> {
+    fn create(conn: &PgConnection, from: &CreatedModel) -> Result<Self, Error>;
+    fn read(conn: &PgConnection) -> Vec<Self>;
+    fn update(conn: &PgConnection, pk: PK, value: &UpdateModel) -> Result<Self, Error>;
+    fn delete(conn: &PgConnection, pk: PK) -> Result<usize, Error>;
+    fn get_by_pk(conn: &PgConnection, pk: PK) -> Result<Self, Error>;
+}

src/pg_pool.rs

@@ -9,25 +9,9 @@ use rocket::http::Status;
 use rocket::request::{self, FromRequest};
 use rocket::{Outcome, Request, State};
 use std::ops::Deref;
-/// Db Connection request guard type: wrapper around r2d2 pooled connection
+
 pub struct DbConn(pub r2d2::PooledConnection<ManagedPgConn>);
 
-/// Attempts to retrieve a single connection from the managed database pool. If
-/// no pool is currently managed, fails with an `InternalServerError` status. If
-/// no connections are available, fails with a `ServiceUnavailable` status.
-impl<'a, 'r> FromRequest<'a, 'r> for DbConn {
-    type Error = ();
-
-    fn from_request(request: &'a Request<'r>) -> request::Outcome<DbConn, ()> {
-        let pool = request.guard::<State<Pool>>()?;
-        match pool.get() {
-            Ok(conn) => Outcome::Success(DbConn(conn)),
-            Err(_) => Outcome::Failure((Status::ServiceUnavailable, ())),
-        }
-    }
-}
-
-// For the convenience of using an &DbConn as an &SqliteConnection.
 impl Deref for DbConn {
     type Target = PgConnection;
 
@@ -36,7 +20,7 @@ impl Deref for DbConn {
     }
 }
 
-pub fn init(database_url: &str) -> Pool {
+pub fn database_pool_establish(database_url: &str) -> Pool {
     let manager = ConnectionManager::<PgConnection>::new(database_url);
     r2d2::Pool::new(manager).expect("Failed to create pool.")
 }