109 lines
2.8 KiB
Rust
109 lines
2.8 KiB
Rust
#[cfg(feature = "nightly")]
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use crate::asyn::TransactionClient;
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use crate::asyn::{ConnectionClient, PersistencePool};
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use crate::error;
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pub use bb8::{Pool, PooledConnection};
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pub use bb8_postgres::tokio_postgres;
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pub use bb8_postgres::PostgresConnectionManager as Manager;
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pub type InnerConn<'p, M> = PooledConnection<'p, M>;
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pub type InnerTrx<'p> = tokio_postgres::Transaction<'p>;
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pub type NoTlsManager = Manager<tokio_postgres::NoTls>;
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pub type NoTlsPersistence<'p> = Persistence<'p, NoTlsManager>;
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pub type NoTlsConnection<'p> = Connection<'p, NoTlsManager>;
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pub type NoTlsInnerConn<'p> = InnerConn<'p, NoTlsManager>;
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pub type NoTlsPool = Pool<NoTlsManager>;
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pub fn new<M>(pool: &Pool<M>) -> Persistence<M>
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where
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M: bb8::ManageConnection,
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{
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Persistence(pool)
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}
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#[derive(Clone)]
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pub struct Persistence<'p, M>(&'p Pool<M>)
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where
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M: bb8::ManageConnection;
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#[async_trait]
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impl<'p> PersistencePool for NoTlsPersistence<'p> {
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type Conn = NoTlsConnection<'p>;
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async fn get_connection(&self) -> error::Result<Self::Conn> {
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self.0
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.get()
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.await
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.map_err(|_| error::PersistenceError::GetConnection)
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.map(Connection)
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}
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}
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pub struct Connection<'p, M>(InnerConn<'p, M>)
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where
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M: bb8::ManageConnection;
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#[cfg_attr(feature = "nightly", async_trait)]
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impl<'me> ConnectionClient for NoTlsConnection<'me> {
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type InnerConn = NoTlsInnerConn<'me>;
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#[cfg(feature = "nightly")]
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type Trx<'t> = Transaction<'t>;
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fn inner(&mut self) -> &mut Self::InnerConn {
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&mut self.0
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}
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#[cfg(feature = "nightly")]
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async fn start_transaction(&mut self) -> error::Result<Self::Trx<'_>> {
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self.0
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.transaction()
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.await
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.map_err(|_| error::PersistenceError::UpgradeToTransaction)
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.map(Transaction)
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}
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}
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#[cfg(feature = "nightly")]
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pub struct Transaction<'p>(InnerTrx<'p>);
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#[cfg(feature = "nightly")]
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#[async_trait]
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impl<'me> ConnectionClient for Transaction<'me> {
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type InnerConn = InnerTrx<'me>;
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type Trx<'t> = Transaction<'t>;
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fn inner(&mut self) -> &mut Self::InnerConn {
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&mut self.0
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}
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async fn start_transaction(&mut self) -> error::Result<Self::Trx<'_>> {
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self.0
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.transaction()
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.await
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.map_err(|_| error::PersistenceError::UpgradeToTransaction)
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.map(Transaction)
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}
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}
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#[cfg(feature = "nightly")]
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#[async_trait]
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impl<'me> TransactionClient for Transaction<'me> {
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async fn commit(self) -> error::Result<()> {
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self.0
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.commit()
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.await
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.map_err(|_| error::PersistenceError::CommitTransaction)
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}
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async fn rollback(self) -> error::Result<()> {
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self.0
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.rollback()
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.await
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.map_err(|_| error::PersistenceError::RollbackTransaction)
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}
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}
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