Struct ChangedField 

pub struct ChangedField { /* private fields */ }

One field a write changed on a ChangedRecord: its name, its label, and its spelling before and after the write, None where it held nothing.

Implementations

impl ChangedField

pub fn name(&self) -> &str

The column’s name, the model field it reads: title.

pub fn label(&self) -> &Text

The column’s label: Title, or the message its catalog spells it with.

pub fn before(&self) -> Option<&str>

The field’s spelling before the write; None for a create, or a field that held nothing.

pub fn after(&self) -> Option<&str>

The field’s spelling after the write; None for a delete, or a field left empty.

Trait Implementations

impl Clone for ChangedField

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ChangedField

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

Formats the value using the given formatter.

impl Eq for ChangedField

impl PartialEq for ChangedField

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ChangedField