Struct Delete

pub struct Delete { /* private fields */ }

Represents a DELETE statement for an update expression, for removing one or more items from a value that is a set.

Prefer Path::delete over this.

See also: Update

Implementations

impl Delete

pub fn new<P, S>(path: P, subset: S) -> Self

where P: Into<Path>, S: Into<Set>,

Creates a Delete for the specified Path and items in that set.

Prefer Path::delete over this.

pub fn and<T>(self, other: T) -> Update

where T: Into<Update>,

Add an additional Update statement to this ADD statement.

use dynamodb_expression::{value::NumSet, Num, Path};

let update = "foo"
    .parse::<Path>()?
    .delete(NumSet::from([7]))
    .and("bar".parse::<Path>()?.set("a value"))
    .and("baz".parse::<Path>()?.remove());
assert_eq!(r#"SET bar = "a value" REMOVE baz DELETE foo [7]"#, update.to_string());

Trait Implementations

impl Clone for Delete

fn clone(&self) -> Delete

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Delete

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

Formats the value using the given formatter.

impl Display for Delete

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

Formats the value using the given formatter.

impl From<Delete> for Update

fn from(value: Delete) -> Self

Converts to this type from the input type.

impl From<DeleteAction> for Delete

fn from(action: DeleteAction) -> Self

Converts to this type from the input type.

impl PartialEq for Delete

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Delete

impl StructuralPartialEq for Delete