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.

Methods

impl AnsiTransactionManager

fn new() -> Self

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

Begin a new transaction. If the transaction depth is greater than 0, this should create a savepoint instead. This function is expected to increment the transaction depth by 1.

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

Rollback the inner-most transaction. If the transaction depth is greater than 1, this should rollback to the most recent savepoint. This function is expected to decrement the transaction depth by 1.

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

Commit the inner-most transaction. If the transaction depth is greater than 1, this should release the most recent savepoint. This function is expected to decrement the transaction depth by 1.

fn get_transaction_depth(&self) -> u32

Fetch the current transaction depth. Used to ensure that begin_test_transaction is not called when already inside of a transaction.