Struct diesel::prelude::PgConnection

pub struct PgConnection { /* private fields */ }

The connection string expected by PgConnection::establish should be a PostgreSQL connection string, as documented at https://www.postgresql.org/docs/9.4/static/libpq-connect.html#LIBPQ-CONNSTRING

Implementations

impl PgConnection

pub fn build_transaction(&self) -> TransactionBuilder<'_>

Build a transaction, specifying additional details such as isolation level

See TransactionBuilder for more examples.

conn.build_transaction()
    .read_only()
    .serializable()
    .deferrable()
    .run(|| Ok(()))

Trait Implementations

impl Connection for PgConnection

type Backend = Pg

The backend this type connects to

fn establish(database_url: &str) -> ConnectionResult<PgConnection>

Establishes a new connection to the database

fn transaction<T, E, F>(&self, f: F) -> Result<T, E> where
    F: FnOnce() -> Result<T, E>,
    E: From<Error>, 

Executes the given function inside of a database transaction

fn begin_test_transaction(&self) -> QueryResult<()>

Creates a transaction that will never be committed. This is useful for tests. Panics if called while inside of a transaction.

fn test_transaction<T, E, F>(&self, f: F) -> T where
    F: FnOnce() -> Result<T, E>,
    E: Debug, 

Executes the given function inside a transaction, but does not commit it. Panics if the given function returns an error.

impl SimpleConnection for PgConnection

fn batch_execute(&self, query: &str) -> QueryResult<()>

Execute multiple SQL statements within the same string.

impl<Changes, Output> UpdateAndFetchResults<Changes, Output> for PgConnection where
    Changes: Copy + AsChangeset<Target = <Changes as HasTable>::Table> + IntoUpdateTarget,
    Update<Changes, Changes>: LoadQuery<PgConnection, Output>, 

fn update_and_fetch(&self, changeset: Changes) -> QueryResult<Output>

See the traits documentation.

impl Send for PgConnection