Struct sqlx::Transaction

pub struct Transaction<'c, DB>
where
    DB: Database,
{ /* private fields */ }

An in-progress database transaction or savepoint.

A transaction starts with a call to Pool::begin or Connection::begin.

A transaction should end with a call to commit or rollback. If neither are called before the transaction goes out-of-scope, rollback is called. In other words, rollback is called on drop if the transaction is still in-progress.

A savepoint is a special mark inside a transaction that allows all commands that are executed after it was established to be rolled back, restoring the transaction state to what it was at the time of the savepoint.

Implementations

impl<'c, DB> Transaction<'c, DB>

where DB: Database,

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

Commits this transaction or savepoint.

pub async fn rollback(self) -> Result<(), Error>

Aborts this transaction or savepoint.

Trait Implementations

impl<'c, 't> Acquire<'t> for &'t mut Transaction<'c, MySql>

type Database = MySql

type Connection = &'t mut <MySql as Database>::Connection

fn acquire( self ) -> Pin<Box<dyn Future<Output = Result<<&'t mut Transaction<'c, MySql> as Acquire<'t>>::Connection, Error>> + Send + 't>>

fn begin( self ) -> Pin<Box<dyn Future<Output = Result<Transaction<'t, MySql>, Error>> + Send + 't>>

impl<'c, DB> Debug for Transaction<'c, DB>

where DB: Database,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'c, DB> Deref for Transaction<'c, DB>

where DB: Database,

type Target = <DB as Database>::Connection

The resulting type after dereferencing.

fn deref(&self) -> &<Transaction<'c, DB> as Deref>::Target

Dereferences the value.

impl<'c, DB> DerefMut for Transaction<'c, DB>

where DB: Database,

fn deref_mut(&mut self) -> &mut <Transaction<'c, DB> as Deref>::Target

Mutably dereferences the value.

impl<'c, DB> Drop for Transaction<'c, DB>

where DB: Database,

fn drop(&mut self)

Executes the destructor for this type.

impl<'c, 't> Executor<'t> for &'t mut Transaction<'c, MySql>

type Database = MySql

fn fetch_many<'e, 'q, E>( self, query: E ) -> Pin<Box<dyn Stream<Item = Result<Either<<MySql as Database>::QueryResult, MySqlRow>, Error>> + Send + 'e>>

where 'q: 'e, 't: 'e, E: 'q + Execute<'q, <&'t mut Transaction<'c, MySql> as Executor<'t>>::Database>,

Execute multiple queries and return the generated results as a stream from each query, in a stream.

fn fetch_optional<'e, 'q, E>( self, query: E ) -> Pin<Box<dyn Future<Output = Result<Option<MySqlRow>, Error>> + Send + 'e>>

where 'q: 'e, 't: 'e, E: 'q + Execute<'q, <&'t mut Transaction<'c, MySql> as Executor<'t>>::Database>,

Execute the query and returns at most one row.

fn prepare_with<'e, 'q>( self, sql: &'q str, parameters: &'e [<<&'t mut Transaction<'c, MySql> as Executor<'t>>::Database as Database>::TypeInfo] ) -> Pin<Box<dyn Future<Output = Result<<<&'t mut Transaction<'c, MySql> as Executor<'t>>::Database as HasStatement<'q>>::Statement, Error>> + Send + 'e>>

where 'q: 'e, 't: 'e,

Prepare the SQL query, with parameter type information, to inspect the type information about its parameters and results.

fn execute<'e, 'q, E>( self, query: E ) -> Pin<Box<dyn Future<Output = Result<<Self::Database as Database>::QueryResult, Error>> + Send + 'e>>

where 'q: 'e, 'c: 'e, E: 'q + Execute<'q, Self::Database>,

Execute the query and return the total number of rows affected.

fn execute_many<'e, 'q, E>( self, query: E ) -> Pin<Box<dyn Stream<Item = Result<<Self::Database as Database>::QueryResult, Error>> + Send + 'e>>

where 'q: 'e, 'c: 'e, E: 'q + Execute<'q, Self::Database>,

Execute multiple queries and return the rows affected from each query, in a stream.

fn fetch<'e, 'q, E>( self, query: E ) -> Pin<Box<dyn Stream<Item = Result<<Self::Database as Database>::Row, Error>> + Send + 'e>>

where 'q: 'e, 'c: 'e, E: 'q + Execute<'q, Self::Database>,

Execute the query and return the generated results as a stream.

fn fetch_all<'e, 'q, E>( self, query: E ) -> Pin<Box<dyn Future<Output = Result<Vec<<Self::Database as Database>::Row>, Error>> + Send + 'e>>

where 'q: 'e, 'c: 'e, E: 'q + Execute<'q, Self::Database>,

Execute the query and return all the generated results, collected into a Vec.

fn fetch_one<'e, 'q, E>( self, query: E ) -> Pin<Box<dyn Future<Output = Result<<Self::Database as Database>::Row, Error>> + Send + 'e>>

where 'q: 'e, 'c: 'e, E: 'q + Execute<'q, Self::Database>,

Execute the query and returns exactly one row.

fn prepare<'e, 'q>( self, query: &'q str ) -> Pin<Box<dyn Future<Output = Result<<Self::Database as HasStatement<'q>>::Statement, Error>> + Send + 'e>>

where 'q: 'e, 'c: 'e,

Prepare the SQL query to inspect the type information of its parameters and results.