Struct ListAppend

pub struct ListAppend { /* private fields */ }

Represents an update expression to append elements to a list.

Prefer Path::list_append over this.

Implementations

impl ListAppend

pub fn builder<T>(dst: T) -> Builder

where T: Into<Path>,

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

where T: Into<Update>,

Add an additional Update statement to this expression.

use dynamodb_expression::{Num, Path};

let set = "foo"
    .parse::<Path>()?
    .list_append()
    .list([7, 8, 9].map(Num::new))
    .and("bar".parse::<Path>()?.set("a value"));
assert_eq!(r#"SET foo = list_append(foo, [7, 8, 9]), bar = "a value""#, set.to_string());

Trait Implementations

impl Clone for ListAppend

fn clone(&self) -> ListAppend

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ListAppend

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

Formats the value using the given formatter.

impl Display for ListAppend

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

Formats the value using the given formatter.

impl From<ListAppend> for SetAction

fn from(append: ListAppend) -> Self

Converts to this type from the input type.

impl From<ListAppend> for Update

fn from(value: ListAppend) -> Self

Converts to this type from the input type.

impl PartialEq for ListAppend

fn eq(&self, other: &ListAppend) -> 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 ListAppend

impl StructuralPartialEq for ListAppend