Struct diesel_transaction_handles::TransactionalConnection

pub struct TransactionalConnection<T: Connection>(_, _);

Methods

impl<C: Connection> TransactionalConnection<C>

pub fn new(conn: C) -> Result<TransactionalConnection<C>, Error>

pub fn rollback(self) -> Result<(), ErrorVec>

pub fn commit(self) -> Result<(), Error>

pub fn handle_result<T, E>(self, res: Result<T, E>) -> Result<T, Error> where
    Error: From<E>, 

pub fn add_rollback_hook(&self, hook: fn() -> Result<(), Error>)

Trait Implementations

impl<C: Connection> Drop for TransactionalConnection<C>

fn drop(&mut self)

Executes the destructor for this type.

impl<C: Connection> Connection for TransactionalConnection<C>

type Backend = C::Backend

The backend this type connects to

type TransactionManager = Self

fn establish(_: &str) -> ConnectionResult<Self>

Establishes a new connection to the database

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

fn query_by_index<T, U>(&self, source: T) -> QueryResult<Vec<U>> where
    T: AsQuery,
    T::Query: QueryFragment<Self::Backend> + QueryId,
    Self::Backend: HasSqlType<T::SqlType>,
    U: Queryable<T::SqlType, Self::Backend>, 

fn query_by_name<T, U>(&self, source: &T) -> QueryResult<Vec<U>> where
    T: QueryFragment<Self::Backend> + QueryId,
    U: QueryableByName<Self::Backend>, 

fn execute_returning_count<T>(&self, source: &T) -> QueryResult<usize> where
    T: QueryFragment<Self::Backend> + QueryId, 

fn transaction_manager(&self) -> &Self::TransactionManager

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

Executes the given function inside of a database transaction

fn begin_test_transaction(&self) -> Result<(), Error>

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
    E: Debug,
    F: FnOnce() -> Result<T, E>, 

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

impl<C: Connection> TransactionManager<TransactionalConnection<C>> for TransactionalConnection<C>

fn begin_transaction(
    &self,
    conn: &TransactionalConnection<C>
) -> QueryResult<()>

Begin a new transaction or savepoint

fn rollback_transaction(
    &self,
    conn: &TransactionalConnection<C>
) -> QueryResult<()>

Rollback the inner-most transaction or savepoint

fn commit_transaction(
    &self,
    conn: &TransactionalConnection<C>
) -> QueryResult<()>

Commit the inner-most transaction or savepoint

fn get_transaction_depth(&self) -> u32

Fetch the current transaction depth

impl<C: Connection> SimpleConnection for TransactionalConnection<C>

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

Execute multiple SQL statements within the same string.