Struct Ulid 

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

A ULID: 26 characters (01J9Z3…), sortable by creation time, stored as text. A good public id: short in URLs, and it doesn’t reveal how many rows a table has. Ulid::default() is the empty value of an unsaved model.

Implementations

impl Ulid

pub fn new() -> Self

A new ULID: the current time in milliseconds, then 80 random bits. Within one millisecond the random part counts up (the spec’s monotonic mode), so ULIDs made by this process sort in the order they were made.

pub fn as_str(&self) -> &str

The ULID as text; empty for an unsaved model.

Trait Implementations

impl Clone for Ulid

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ColumnType for Ulid

const KIND: ColumnKind = ColumnKind::Text

The kind of column this type is stored in.

impl Debug for Ulid

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

Formats the value using the given formatter.

impl<'r> Decode<'r, Postgres> for Ulid

fn decode( value: <Postgres as Database>::ValueRef<'r>, ) -> Result<Self, BoxDynError>

Decode a new value of this type using a raw value from the database.

impl<'r> Decode<'r, Sqlite> for Ulid

fn decode( value: <Sqlite as Database>::ValueRef<'r>, ) -> Result<Self, BoxDynError>

Decode a new value of this type using a raw value from the database.

impl Default for Ulid

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Ulid

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

From a path segment, a form field or JSON: an invalid ULID is an error (a 404 through renox::Path).

impl Display for Ulid

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

Formats the value using the given formatter.

impl Eq for Ulid

impl FromStr for Ulid

fn from_str(text: &str) -> Result<Self, Self::Err>

Accepts lower case, as the spec asks; an empty string is the unsaved value.

type Err = InvalidUlid

The associated error which can be returned from parsing.

impl Hash for Ulid

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

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 ModelKey for Ulid

fn is_unsaved(&self) -> bool

Whether this is the key of a model that isn’t saved yet.

fn generate() -> Option<Self>

A new key for an insert, or None when the database makes it (auto-increment) or the app must set it (String).

const AUTO_INCREMENT: bool = false

The database makes the key on insert (RETURNING id).

impl Ord for Ulid

fn cmp(&self, other: &Self) -> 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 Ulid

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Ulid

fn partial_cmp(&self, other: &Self) -> 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 Serialize for Ulid

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

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Ulid

impl ToDbValue for Ulid

fn to_db_value(&self) -> DbValue

The value to bind for self.

impl Type<Postgres> for Ulid

fn type_info() -> <Postgres as Database>::TypeInfo

Returns the canonical SQL type for this Rust type.

fn compatible(ty: &<Postgres as Database>::TypeInfo) -> bool

Determines if this Rust type is compatible with the given SQL type.

impl Type<Sqlite> for Ulid

fn type_info() -> <Sqlite as Database>::TypeInfo

Returns the canonical SQL type for this Rust type.

fn compatible(ty: &<Sqlite as Database>::TypeInfo) -> bool

Determines if this Rust type is compatible with the given SQL type.