Struct diesel::connection::AnsiTransactionManager

pub struct AnsiTransactionManager { /* fields omitted */ }

An implementation of TransactionManager which can be used for backends which use ANSI standard syntax for savepoints such as SQLite and PostgreSQL.

Implementations

impl AnsiTransactionManager

pub fn new() -> Self

Create a new transaction manager

pub fn begin_transaction_sql<Conn>(
    &self,
    conn: &Conn,
    sql: &str
) -> QueryResult<()> where
    Conn: SimpleConnection, 

Begin a transaction with custom SQL

This is used by connections to implement more complex transaction APIs to set things such as isolation levels. Returns an error if already inside of a transaction.

Trait Implementations

impl Default for AnsiTransactionManager

fn default() -> AnsiTransactionManager

Returns the “default value” for a type.

impl<Conn> TransactionManager<Conn> for AnsiTransactionManager where
    Conn: Connection,
    Conn::Backend: UsesAnsiSavepointSyntax, 

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

If the transaction fails to commit due to a SerializationFailure, a rollback will be attempted. If the rollback succeeds, the original error will be returned, otherwise the error generated by the rollback will be returned. In the second case the connection should be considered broken as it contains a uncommitted unabortable open transaction.

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

Begin a new transaction or savepoint

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

Rollback the inner-most transaction or savepoint

fn get_transaction_depth(&self) -> u32

Fetch the current transaction depth