43 lines
1.1 KiB
Rust
43 lines
1.1 KiB
Rust
use crate::config::Config;
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use diesel::pg::PgConnection;
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use diesel::r2d2::ConnectionManager;
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use r2d2::{Pool, PooledConnection};
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use rocket::{Outcome, Request, State};
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use rocket::http::Status;
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use rocket::request::{self, FromRequest};
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use std::ops::Deref;
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pub struct DbPool(Pool<ConnectionManager<PgConnection>>);
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pub struct DbConn(PooledConnection<ConnectionManager<PgConnection>>);
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impl<'a, 'r> FromRequest<'a, 'r> for DbConn {
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type Error = ();
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fn from_request(request: &'a Request<'r>) -> request::Outcome<DbConn, ()> {
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let pool =
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request.guard::<State<DbPool>>()?;
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match pool.0.get() {
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Ok(conn) => Outcome::Success(DbConn(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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impl Deref for DbConn {
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type Target = PgConnection;
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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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pub fn create_db_pool(config: &Config) -> DbPool {
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let manager =
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ConnectionManager::<PgConnection>::new(config.database_url.to_string());
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DbPool(Pool::new(manager).expect("Failed to create database pool"))
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}
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