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Value

nautilus_core::value

Enum Value

pub enum Value {
Show 14 variants    Null,
    Bool(bool),
    I32(i32),
    I64(i64),
    F64(f64),
    Decimal(Decimal),
    DateTime(NaiveDateTime),
    Uuid(Uuid),
    Json(Value),
    String(String),
    Bytes(Vec<u8>),
    Array(Vec<Value>),
    Array2D(Vec<Vec<Value>>),
    Enum {
        value: String,
        type_name: String,
    },
}

Expand description

Database value type.

Implements custom JSON serialization for cross-language compatibility:

Decimal → string (avoid precision loss)
DateTime → RFC3339 string
Uuid → hyphenated lowercase string
Bytes → base64 string

Variants§

Null

NULL value.

Bool(bool)

Boolean.

I32(i32)

32-bit integer.

I64(i64)

64-bit integer.

F64(f64)

64-bit float.

Decimal(Decimal)

Decimal number with arbitrary precision.

DateTime(NaiveDateTime)

Date and time (without timezone).

Uuid(Uuid)

UUID.

Json(Value)

JSON value.

String(String)

String.

Bytes(Vec<u8>)

Byte array.

Array(Vec<Value>)

Array of values (PostgreSQL native arrays).

Array2D(Vec<Vec<Value>>)

2D array of values (PostgreSQL multi-dimensional arrays).

Enum

A database enum value with its PostgreSQL type name.

Carries the variant string (e.g. "ADMIN") together with the lowercase PG type name (e.g. "role") so that the PostgreSQL dialect can emit the required explicit cast ($1::role). All other backends treat this identically to Value::String.

Fields

§value: String

The enum variant string sent to / received from the DB.

§type_name: String

Lowercase PostgreSQL type name (e.g. "role", "poststatus").

Trait Implementations§

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for Value

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

Formats the value using the given formatter. Read more

impl<'de> Deserialize<'de> for Value

Deserializes a Value from any serde format.

§Implementation note

This implementation routes through serde_json::Value as an intermediate step. As a consequence, binary serde formats (bincode, postcard, rmp, etc.) are not supported — they will succeed structurally but lose type fidelity because all values are first encoded as JSON. Use this impl only with text/JSON-compatible formats.

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

Deserialize this value from the given Serde deserializer. Read more

impl From<&str> for Value

fn from(v: &str) -> Self

Converts to this type from the input type.

impl From<Decimal> for Value

fn from(v: Decimal) -> Self

Converts to this type from the input type.

impl From<NaiveDateTime> for Value

fn from(v: NaiveDateTime) -> Self

Converts to this type from the input type.

impl From<Option<&str>> for Value

fn from(v: Option<&str>) -> Self

Converts to this type from the input type.

impl From<Option<Decimal>> for Value

fn from(v: Option<Decimal>) -> Self

Converts to this type from the input type.

impl From<Option<NaiveDateTime>> for Value

fn from(v: Option<NaiveDateTime>) -> Self

Converts to this type from the input type.

impl From<Option<String>> for Value

fn from(v: Option<String>) -> Self

Converts to this type from the input type.

impl From<Option<Uuid>> for Value

fn from(v: Option<Uuid>) -> Self

Converts to this type from the input type.

impl From<Option<bool>> for Value

fn from(v: Option<bool>) -> Self

Converts to this type from the input type.

impl From<Option<f64>> for Value

fn from(v: Option<f64>) -> Self

Converts to this type from the input type.

impl From<Option<i32>> for Value

fn from(v: Option<i32>) -> Self

Converts to this type from the input type.

impl From<Option<i64>> for Value

fn from(v: Option<i64>) -> Self

Converts to this type from the input type.

impl From<String> for Value

fn from(v: String) -> Self

Converts to this type from the input type.

impl From<Uuid> for Value

fn from(v: Uuid) -> Self

Converts to this type from the input type.

impl From<Value> for Value

fn from(v: Value) -> Self

Converts to this type from the input type.

impl From<Vec<Decimal>> for Value

fn from(v: Vec<Decimal>) -> Self

Converts to this type from the input type.

impl From<Vec<NaiveDateTime>> for Value

fn from(v: Vec<NaiveDateTime>) -> Self

Converts to this type from the input type.

impl From<Vec<String>> for Value

fn from(v: Vec<String>) -> Self

Converts to this type from the input type.

impl From<Vec<Uuid>> for Value

fn from(v: Vec<Uuid>) -> Self

Converts to this type from the input type.

impl From<Vec<Value>> for Value

fn from(v: Vec<Value>) -> Self

Converts to this type from the input type.

impl From<Vec<Vec<Decimal>>> for Value

fn from(v: Vec<Vec<Decimal>>) -> Self

Converts to this type from the input type.

impl From<Vec<Vec<NaiveDateTime>>> for Value

fn from(v: Vec<Vec<NaiveDateTime>>) -> Self

Converts to this type from the input type.

impl From<Vec<Vec<String>>> for Value

fn from(v: Vec<Vec<String>>) -> Self

Converts to this type from the input type.

impl From<Vec<Vec<Uuid>>> for Value

fn from(v: Vec<Vec<Uuid>>) -> Self

Converts to this type from the input type.

impl From<Vec<Vec<Value>>> for Value

fn from(v: Vec<Vec<Value>>) -> Self

Converts to this type from the input type.

impl From<Vec<Vec<bool>>> for Value

fn from(v: Vec<Vec<bool>>) -> Self

Converts to this type from the input type.

impl From<Vec<Vec<f64>>> for Value

fn from(v: Vec<Vec<f64>>) -> Self

Converts to this type from the input type.

impl From<Vec<Vec<i32>>> for Value

fn from(v: Vec<Vec<i32>>) -> Self

Converts to this type from the input type.

impl From<Vec<Vec<i64>>> for Value

fn from(v: Vec<Vec<i64>>) -> Self

Converts to this type from the input type.

impl From<Vec<bool>> for Value

fn from(v: Vec<bool>) -> Self

Converts to this type from the input type.

impl From<Vec<f64>> for Value

fn from(v: Vec<f64>) -> Self

Converts to this type from the input type.

impl From<Vec<i32>> for Value

fn from(v: Vec<i32>) -> Self

Converts to this type from the input type.

impl From<Vec<i64>> for Value

fn from(v: Vec<i64>) -> Self

Converts to this type from the input type.

impl From<Vec<u8>> for Value

fn from(v: Vec<u8>) -> Self

Converts to this type from the input type.

impl From<bool> for Value

fn from(v: bool) -> Self

Converts to this type from the input type.

impl From<f64> for Value

fn from(v: f64) -> Self

Converts to this type from the input type.

impl From<i32> for Value

fn from(v: i32) -> Self

Converts to this type from the input type.

impl From<i64> for Value

fn from(v: i64) -> Self

Converts to this type from the input type.

impl PartialEq for Value

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

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

1.0.0 · Source§

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 Serialize for Value

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

Serialize this value into the given Serde serializer. Read more

impl StructuralPartialEq for Value

Auto Trait Implementations§

impl Freeze for Value

impl RefUnwindSafe for Value

impl Send for Value

impl Sync for Value

impl Unpin for Value

impl UnsafeUnpin for Value

impl UnwindSafe for Value

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,