Struct InTransactionPostgresBackend 

pub struct InTransactionPostgresBackend<'a> { /* private fields */ }

A Postgres Backend that wraps a borrowed connection.

This backend is neither Sync nor Send.

Available if the features “state-merkle-sql-in-transaction” “postgres” are enabled.

Implementations

impl<'a> InTransactionPostgresBackend<'a>

pub fn new(connection: &'a PgConnection) -> Self

Wrap a reference to a diesel::pg::PgConnection.

Trait Implementations

impl<'a> Backend for InTransactionPostgresBackend<'a>

Available on crate feature state-merkle-sql-in-transaction only.

type Connection = BorrowedPostgresConnection<'a>

The database connection.

fn connection(&self) -> Result<Self::Connection, InternalError>

Acquire a database connection.

impl<'a> Execute for InTransactionPostgresBackend<'a>

Available on crate feature state-merkle-sql-in-transaction only.

fn execute<F, T>(&self, f: F) -> Result<T, InternalError>

where F: Fn(&Self::Connection) -> Result<T, InternalError>,

impl<'a> From<&'a PgConnection> for InTransactionPostgresBackend<'a>

Available on crate feature state-merkle-sql-in-transaction only.

fn from(conn: &'a PgConnection) -> Self

Converts to this type from the input type.