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Tx

Struct Tx 

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pub struct Tx<'a> { /* private fields */ }
Expand description

Transaction handle that owns the SQLite connection until completion.

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impl<'conn> Tx<'conn>

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pub fn prepare(&self, sql: &str) -> Result<Prepared, SqlMiddlewareDbError>

Prepare a statement within this transaction.

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Returns SqlMiddlewareDbError if the transaction has already completed.

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pub fn select<'tx, 'prepared>( &'tx mut self, prepared: &'prepared Prepared, ) -> PreparedSelect<'tx, 'prepared, 'static, 'conn>

Start configuring a prepared SELECT execution.

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pub fn execute<'tx, 'prepared>( &'tx mut self, prepared: &'prepared Prepared, ) -> PreparedExecute<'tx, 'prepared, 'static, 'conn>

Start configuring a prepared DML execution.

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pub async fn execute_batch( &mut self, sql: &str, ) -> Result<(), SqlMiddlewareDbError>

Execute a batch inside the open transaction.

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Returns SqlMiddlewareDbError if executing the batch fails.

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

Commit the transaction and rewrap the pooled connection.

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Returns SqlMiddlewareDbError if committing the transaction fails.

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

Roll back the transaction and rewrap the pooled connection.

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Returns SqlMiddlewareDbError if rolling back fails.

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impl Drop for Tx<'_>

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fn drop(&mut self)

Rolls back on drop to avoid leaking open transactions; the rollback is best-effort and SQLite may report “no transaction is active” if the transaction was already completed by user code (e.g., via execute_batch_in_tx). Such errors are ignored because the goal is simply to leave the connection in a clean state before returning it to the pool.

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fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)
Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned. Read more

Auto Trait Implementations§

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impl<'a> Freeze for Tx<'a>

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impl<'a> !RefUnwindSafe for Tx<'a>

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impl<'a> Send for Tx<'a>

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impl<'a> Sync for Tx<'a>

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impl<'a> Unpin for Tx<'a>

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impl<'a> UnsafeUnpin for Tx<'a>

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impl<'a> !UnwindSafe for Tx<'a>

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.