Struct DataSnapshot 

pub struct DataSnapshot { /* private fields */ }

Represents a data snapshot returned to listeners, analogous to the JS DataSnapshot type.

Implementations

impl DataSnapshot

pub fn reference(&self) -> &DatabaseReference

pub fn value(&self) -> &Value

pub fn exists(&self) -> bool

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

pub fn into_value(self) -> Value

pub fn child(&self, relative_path: &str) -> DatabaseResult<DataSnapshot>

Returns a snapshot for the provided relative path, mirroring DataSnapshot.child(path) in Reference_impl.ts.

pub fn has_child(&self, relative_path: &str) -> DatabaseResult<bool>

Returns whether data exists at the provided child path, mirroring the JS DataSnapshot.hasChild() helper.

pub fn has_children(&self) -> bool

Returns whether the snapshot has any direct child properties, mirroring DataSnapshot.hasChildren().

pub fn size(&self) -> usize

Returns the number of direct child properties, mirroring the JS size getter.

pub fn to_json(&self) -> Value

Returns the JSON representation (including priority metadata) of this snapshot.

Trait Implementations

impl Clone for DataSnapshot

fn clone(&self) -> DataSnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataSnapshot

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

Formats the value using the given formatter.