Struct bb8_diesel::DieselConnectionManager

pub struct DieselConnectionManager<T> { /* fields omitted */ }

A connection manager which implements bb8::ManageConnection to integrate with bb8.

#[macro_use]
extern crate diesel;

use diesel::prelude::*;
use diesel::pg::PgConnection;

table! {
    users (id) {
        id -> Integer,
    }
}

#[tokio::main]
async fn main() {
    use users::dsl;

    // Creates a Diesel-specific connection manager for bb8.
    let mgr = bb8_diesel::DieselConnectionManager::<PgConnection>::new("localhost:1234");
    let pool = bb8::Pool::builder().build(mgr).await.unwrap();
    let conn = pool.get().await.unwrap();

    diesel::insert_into(dsl::users)
        .values(dsl::id.eq(1337))
        .execute(&*conn)
        .unwrap();
}

Implementations

impl<T: Send + 'static> DieselConnectionManager<T>

pub fn new<S: Into<String>>(database_url: S) -> Self

Trait Implementations

impl<T: Clone> Clone for DieselConnectionManager<T>

fn clone(&self) -> DieselConnectionManager<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> ManageConnection for DieselConnectionManager<T> where
    T: Connection + Send + 'static, 

type Connection = DieselConnection<T>

The connection type this manager deals with.

type Error = <ConnectionManager<T> as ManageConnection>::Error

The error type returned by Connections.

fn connect<'life0, 'async_trait>(
    &'life0 self
) -> Pin<Box<dyn Future<Output = Result<Self::Connection, Self::Error>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    Self: 'async_trait, 

Attempts to create a new connection.

fn is_valid<'life0, 'life1, 'life2, 'async_trait>(
    &'life0 self,
    conn: &'life1 mut PooledConnection<'life2, Self>
) -> Pin<Box<dyn Future<Output = Result<(), Self::Error>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    'life2: 'async_trait,
    Self: 'async_trait, 

Determines if the connection is still connected to the database.

fn has_broken(&self, _: &mut Self::Connection) -> bool

Synchronously determine if the connection is no longer usable, if possible.