Crate helge

Helge is a tiny wrapper around r2d2::Pool and diesel ConnectionManager to provide a simple way to use diesel postgres with r2d2 in an async context.

Example

use diesel::prelude::*;
use helge::{Error, Helge};

diesel::table! {
    users {
	    id -> Integer,
	    name -> Varchar,
    }
}

#[derive(Debug, Insertable)]
#[diesel(table_name = users)]
struct NewUser {
    name: String,
}


async fn query() -> Result<(), helge::Error> {
  let helge = Helge::<diesel::PgConnection>::new("postgres://localhost/somedatabase")
                           .expect("connecting Helge");
  helge.query(|conn| {
      diesel::insert_into(users::table)
          .values(&NewUser {
              name: String::from("Helge"),
          })
          .execute(conn)
  }).await;
  Ok(())
}

Structs

• Helge
  The main wrapper, simply contains an r2d2::Pool

Enums

• ConnectionError
  ConnectionError can only occur when creating Helge.
• Error
  General Errors that can occur when running queries using Helge.