Struct Uuid 

pub struct Uuid(/* private fields */);

Available on crate features model-mysql or model-postgres or model-sqlite only.

A UUID, kept as its 16 bytes.

use rust_web_server::model::Uuid;

let id = Uuid::now_v7();
assert_eq!(id.version(), 7);
assert_eq!(Uuid::parse(&id.to_string()).unwrap(), id);
assert!(Uuid::default().is_nil());

Implementations

impl Uuid

pub const NIL: Uuid

00000000-0000-0000-0000-000000000000, also Uuid::default(): a key not chosen yet — save generates a v7 in its place.

pub const fn from_bytes(bytes: [u8; 16]) -> Uuid

The UUID with these bytes.

pub const fn as_bytes(&self) -> &[u8; 16]

Its 16 bytes.

pub fn is_nil(&self) -> bool

Whether it is Uuid::NIL.

pub fn version(&self) -> u8

The version field (4 for Uuid::new_v4, 7 for Uuid::now_v7).

pub fn new_v4() -> Uuid

A random (version 4) UUID.

pub fn now_v7() -> Uuid

A time-ordered (version 7) UUID: the Unix time in milliseconds, then 74 random bits. Two made in the same millisecond are in random order.

pub fn parse(text: &str) -> Result<Uuid, DbError>

Parse the hyphenated form (67e55044-10b1-426f-9247-bb680e5fe0c8), either case, or the 32 hex digits without hyphens.

Trait Implementations

impl Clone for Uuid

fn clone(&self) -> Uuid

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Uuid

impl Debug for Uuid

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

Formats the value using the given formatter.

impl Default for Uuid

fn default() -> Uuid

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Uuid

Available on crate feature serde only.

fn deserialize<D>( deserializer: D, ) -> Result<Uuid, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Uuid

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

Formats the value using the given formatter.

impl Eq for Uuid

impl FromColumn for Uuid

fn from_column(v: Value) -> Result<Uuid, DbError>

impl FromStr for Uuid

type Err = DbError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Uuid, DbError>

Parses a string s to return a value of this type.

impl Hash for Uuid

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Uuid

fn cmp(&self, other: &Uuid) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Uuid

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Uuid

fn partial_cmp(&self, other: &Uuid) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl PrimaryKey for Uuid

impl<'a, T> Repository<T, Uuid> for ModelRepository<'a, T, Uuid>

where T: Model,

async fn find_by_id(&self, id: Uuid) -> Result<Option<T>, DbError>

async fn find_all(&self) -> Result<Vec<T>, DbError>

async fn save(&self, entity: &T) -> Result<T, DbError>

async fn save_all(&self, entities: &[T]) -> Result<Vec<T>, DbError>

async fn delete_by_id(&self, id: Uuid) -> Result<(), DbError>

async fn delete_all_by_id(&self, ids: &[Uuid]) -> Result<(), DbError>

async fn count(&self) -> Result<i64, DbError>

async fn exists_by_id(&self, id: Uuid) -> Result<bool, DbError>

impl Serialize for Uuid

Available on crate feature serde only.

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Uuid

impl ToColumn for Uuid

fn to_column(&self) -> Value