Get working boilerplate

main
Elnu 2 years ago
parent 59f3ce9ea5
commit 4cfa06f855

@ -0,0 +1,5 @@
#[derive(Debug)]
pub struct Comment {
pub author: Option<String>, // null is Anonymous
pub text: String
}

@ -0,0 +1,41 @@
use rusqlite::{params, Connection, Result};
use crate::comment::Comment;
pub struct Database {
conn: Connection,
}
impl Database {
pub fn new() -> Result<Self> {
let conn = Connection::open_in_memory()?;
conn.execute(
"CREATE TABLE comment (
id INTEGER PRIMARY KEY,
author TEXT,
text TEXT NOT NULL
)",
params![]
)?;
Ok(Self { conn })
}
pub fn get_comments(&self) -> Result<Vec<Comment>> {
self.conn
.prepare("SELECT author, text FROM comment")?
.query_map([], |row| {
Ok(Comment {
author: row.get(0)?,
text: row.get(1)?,
})
})?
.collect()
}
pub fn create_comment(&self, comment: &Comment) -> Result<()> {
self.conn.execute(
"INSERT INTO comment (author, text) VALUES (?1, ?2)",
params![&comment.author, &comment.text],
)?;
Ok(())
}
}

@ -1,59 +1,31 @@
use rusqlite::{params, Connection, Result};
mod comment;
pub use comment::Comment;
#[derive(Debug)]
struct Comment {
author: Option<String>, // null is Anonymous
text: String
}
mod database;
pub use database::Database;
struct Database {
conn: Connection
}
use actix_web::{get, web, App, HttpResponse, HttpServer, Responder};
use std::sync::{LockResult, Mutex};
impl Database {
fn new() -> Result<Self> {
let conn = Connection::open_in_memory()?;
conn.execute(
"CREATE TABLE comment (
id INTEGER PRIMARY KEY,
author TEXT,
text TEXT NOT NULL
)",
params![]
)?;
Ok(Self { conn })
#[get("/comments")]
async fn get_comments(data: web::Data<AppState>) -> impl Responder {
let db = &data.db.lock().unwrap();
/*db.create_comment(&Comment {
author: Some("Elnu".to_string()),
text: "Hello world".to_string()
}).unwrap();*/
HttpResponse::Ok().body(format!("{}", db.get_comments().unwrap().get(0).unwrap_or(&Comment { author: None, text: "No comments yet!".to_string() }).text))
}
fn get_comments(&self) -> Result<Vec<Comment>> {
self.conn
.prepare("SELECT author, text FROM comment")?
.query_map([], |row| {
Ok(Comment {
author: row.get(0)?,
text: row.get(1)?,
#[actix_web::main]
async fn main() -> Result<(), std::io::Error> {
let state = web::Data::new(AppState { db: Mutex::new(Database::new().unwrap()) });
HttpServer::new(move || {
App::new()
.service(get_comments)
.app_data(state.clone())
})
})?
.collect()
}
fn create_comment(&self, comment: &Comment) -> Result<()> {
self.conn.execute(
"INSERT INTO comment (author, text) VALUES (?1, ?2)",
params![&comment.author, &comment.text],
)?;
Ok(())
}
}
fn main() -> Result<()> {
let db = Database::new()?;
let comment = Comment {
author: Some("Elnu".to_string()), // None for anonymous
text: "This is a test comment by yours truly!".to_string(),
};
db.create_comment(&comment)?;
for comment in db.get_comments()?.iter() {
println!("Found comment {:?}", comment);
}
Ok(())
.bind(("127.0.0.1", 8080))?
.run()
.await
}

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