mirror of https://github.com/rwf2/Rocket.git
41 lines
1.1 KiB
Rust
41 lines
1.1 KiB
Rust
use std::ops::Deref;
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use diesel::sqlite::SqliteConnection;
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use diesel::r2d2::{ConnectionManager, Pool, PooledConnection};
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use rocket::http::Status;
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use rocket::request::{self, FromRequest};
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use rocket::{Request, State, Outcome};
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pub type SqlitePool = Pool<ConnectionManager<SqliteConnection>>;
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pub const DATABASE_URL: &'static str = concat!(env!("CARGO_MANIFEST_DIR"), "/db/db.sql");
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pub fn init_pool() -> SqlitePool {
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let manager = ConnectionManager::<SqliteConnection>::new(DATABASE_URL);
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Pool::new(manager).expect("db pool")
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}
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pub struct Conn(pub PooledConnection<ConnectionManager<SqliteConnection>>);
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impl Deref for Conn {
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type Target = SqliteConnection;
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#[inline(always)]
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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impl<'a, 'r> FromRequest<'a, 'r> for Conn {
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type Error = ();
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fn from_request(request: &'a Request<'r>) -> request::Outcome<Conn, ()> {
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let pool = request.guard::<State<SqlitePool>>()?;
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match pool.get() {
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Ok(conn) => Outcome::Success(Conn(conn)),
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Err(_) => Outcome::Failure((Status::ServiceUnavailable, ()))
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}
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}
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}
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