Enum Value 

pub enum Value {
    Null,
    Bool(bool),
    I8(i8),
    I16(i16),
    I32(i32),
    I64(i64),
    U8(u8),
    U16(u16),
    U32(u32),
    U64(u64),
    F32(f32),
    F64(f64),
    String(String),
    Bytes(Vec<u8>),
    Date(NaiveDate),
    DateTime(NaiveDateTime),
    Time(NaiveTime),
    Decimal(Decimal),
    Json(Value),
}

A dynamic database value that can represent any MySQL column type.

This enum provides a type-safe way to pass values to queries and convert between Rust types and MySQL types.

Variants

Null

SQL NULL value

Bool(bool)

Boolean value

I8(i8)

Signed 8-bit integer

I16(i16)

Signed 16-bit integer

I32(i32)

Signed 32-bit integer

I64(i64)

Signed 64-bit integer

U8(u8)

Unsigned 8-bit integer

U16(u16)

Unsigned 16-bit integer

U32(u32)

Unsigned 32-bit integer

U64(u64)

Unsigned 64-bit integer

F32(f32)

32-bit floating point

F64(f64)

64-bit floating point

String(String)

String/text value

Bytes(Vec<u8>)

Binary data

Date(NaiveDate)

Date value

DateTime(NaiveDateTime)

DateTime/Timestamp value

Time(NaiveTime)

Time value

Decimal(Decimal)

Decimal value

Json(Value)

JSON value

Implementations

impl Value

pub fn is_null(&self) -> bool

Check if this value is null

pub fn type_name(&self) -> &'static str

Get the type name for error messages

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Value

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

Formats the value using the given formatter.

impl From<&[u8]> for Value

fn from(v: &[u8]) -> Self

Converts to this type from the input type.

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<NaiveDate> for Value

fn from(v: NaiveDate) -> 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<NaiveTime> for Value

fn from(v: NaiveTime) -> Self

Converts to this type from the input type.

impl<T: Into<Value>> From<Option<T>> for Value

fn from(v: Option<T>) -> 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<Value> for Value

fn from(v: Value) -> 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<f32> for Value

fn from(v: f32) -> 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<i16> for Value

fn from(v: i16) -> 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 From<i8> for Value

fn from(v: i8) -> Self

Converts to this type from the input type.

impl From<u16> for Value

fn from(v: u16) -> Self

Converts to this type from the input type.

impl From<u32> for Value

fn from(v: u32) -> Self

Converts to this type from the input type.

impl From<u64> for Value

fn from(v: u64) -> Self

Converts to this type from the input type.

impl From<u8> for Value

fn from(v: u8) -> 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 ==.

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 StructuralPartialEq for Value