Struct Mutable 

pub struct Mutable<'transaction, T: Table> { /* private fields */ }

Mutable access to columns of a single table row.

The whole row is retrieved and can be inspected from Rust code. However, only rows that are not used in a #[unique] constraint can be updated using Mutable.

Mutable only executes an UPDATE statement when it is dropped. This delay can not be observed because the transaction is borrowed mutably.

Implementations

impl<'transaction, T: Table> Mutable<'transaction, T>

pub fn into_table_row(self) -> TableRow<T>

Turn the Mutable into a TableRow.

This will end the lifetime of the Mutable, which is useful since Mutable does not have a non lexical lifetime, because of the Drop impl.

If you do not need the TableRow, then it is also possible to just call drop.

Trait Implementations

impl<'transaction, T: Table> Deref for Mutable<'transaction, T>

type Target = <T as Table>::Mutable

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'transaction, T: Table> DerefMut for Mutable<'transaction, T>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<'transaction, T: Table> Drop for Mutable<'transaction, T>

fn drop(&mut self)

Executes the destructor for this type.