Crate roa_diesel

This crate provides diesel integration with roa framework.

AsyncPool

A context extension to access r2d2 pool asynchronously.

use roa::{Context, Result};
use diesel::sqlite::SqliteConnection;
use roa_diesel::{Pool, AsyncPool};
use diesel::r2d2::ConnectionManager;

#[derive(Clone)]
struct State(Pool<SqliteConnection>);

impl AsRef<Pool<SqliteConnection>> for State {
    fn as_ref(&self) -> &Pool<SqliteConnection> {
        &self.0
    }
}

async fn get(ctx: Context<State>) -> Result {
    let conn = ctx.get_conn().await?;
    // handle conn
    Ok(())
}

SqlQuery

A context extension to execute diesel query asynchronously.

Refer to integration example for more use cases.

Modules

preload

preload ext traits.

Structs

ConnectionManager

An r2d2 connection manager for use with Diesel.

Functions

builder	Create a pool builder.
make_pool	Create a connection pool.

Type Definitions

Pool	An alias for r2d2::Pool<diesel::r2d2::ConnectionManager>.
WrapConnection	An alias for r2d2::PooledConnection<diesel::r2d2::ConnectionManager>.