Trait sqlx::decode::Decode

pub trait Decode<DB> where
    DB: Database + ?Sized, {
    fn decode(raw: &[u8]) -> Result<Self, DecodeError>;

    fn decode_null() -> Result<Self, DecodeError> { ... }
    fn decode_nullable(raw: Option<&[u8]>) -> Result<Self, DecodeError> { ... }
}

Decode a single value from the database.

Required methods

fn decode(raw: &[u8]) -> Result<Self, DecodeError>

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Provided methods

fn decode_null() -> Result<Self, DecodeError>

Creates a new value of this type from a NULL SQL value.

The default implementation returns [DecodeError::UnexpectedNull].

fn decode_nullable(raw: Option<&[u8]>) -> Result<Self, DecodeError>

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Implementations on Foreign Types

impl Decode<Postgres> for f64

fn decode(buf: &[u8]) -> Result<f64, DecodeError>

impl Decode<MySql> for bool

fn decode(buf: &[u8]) -> Result<bool, DecodeError>

impl Decode<MySql> for String

fn decode(buf: &[u8]) -> Result<String, DecodeError>

impl Decode<Postgres> for i16

fn decode(buf: &[u8]) -> Result<i16, DecodeError>

impl Decode<MySql> for i32

fn decode(buf: &[u8]) -> Result<i32, DecodeError>

impl Decode<Postgres> for i64

fn decode(buf: &[u8]) -> Result<i64, DecodeError>

impl Decode<Postgres> for bool

fn decode(buf: &[u8]) -> Result<bool, DecodeError>

impl Decode<Postgres> for Vec<u8>

fn decode(buf: &[u8]) -> Result<Vec<u8>, DecodeError>

impl Decode<MySql> for u64

fn decode(buf: &[u8]) -> Result<u64, DecodeError>

impl Decode<MySql> for i64

fn decode(buf: &[u8]) -> Result<i64, DecodeError>

impl<T, DB> Decode<DB> for Option<T> where
    DB: Database + HasSqlType<T>,
    T: Decode<DB>, 

fn decode(buf: &[u8]) -> Result<Option<T>, DecodeError>

fn decode_null() -> Result<Option<T>, DecodeError>

impl Decode<Postgres> for i32

fn decode(buf: &[u8]) -> Result<i32, DecodeError>

impl Decode<Postgres> for f32

fn decode(buf: &[u8]) -> Result<f32, DecodeError>

impl Decode<Postgres> for String

fn decode(buf: &[u8]) -> Result<String, DecodeError>

impl Decode<MySql> for Vec<u8>

fn decode(buf: &[u8]) -> Result<Vec<u8>, DecodeError>

impl Decode<MySql> for u32

fn decode(buf: &[u8]) -> Result<u32, DecodeError>

impl Decode<MySql> for f32

fn decode(buf: &[u8]) -> Result<f32, DecodeError>

impl Decode<MySql> for u16

fn decode(buf: &[u8]) -> Result<u16, DecodeError>

impl Decode<MySql> for i8

fn decode(buf: &[u8]) -> Result<i8, DecodeError>

impl Decode<MySql> for f64

fn decode(buf: &[u8]) -> Result<f64, DecodeError>

impl Decode<MySql> for i16

fn decode(buf: &[u8]) -> Result<i16, DecodeError>

impl Decode<MySql> for u8

fn decode(buf: &[u8]) -> Result<u8, DecodeError>

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Implementors

impl Decode<MySql> for DateTime<Utc>

fn decode(buf: &[u8]) -> Result<DateTime<Utc>, DecodeError>

impl Decode<MySql> for NaiveDate

fn decode(buf: &[u8]) -> Result<NaiveDate, DecodeError>

impl Decode<MySql> for NaiveDateTime

fn decode(buf: &[u8]) -> Result<NaiveDateTime, DecodeError>

impl Decode<MySql> for NaiveTime

fn decode(buf: &[u8]) -> Result<NaiveTime, DecodeError>

impl Decode<Postgres> for DateTime<Utc>

fn decode(raw: &[u8]) -> Result<DateTime<Utc>, DecodeError>

impl Decode<Postgres> for DateTime<Local>

fn decode(raw: &[u8]) -> Result<DateTime<Local>, DecodeError>

impl Decode<Postgres> for NaiveDate

fn decode(raw: &[u8]) -> Result<NaiveDate, DecodeError>

impl Decode<Postgres> for NaiveDateTime

fn decode(raw: &[u8]) -> Result<NaiveDateTime, DecodeError>

impl Decode<Postgres> for NaiveTime

fn decode(raw: &[u8]) -> Result<NaiveTime, DecodeError>

impl Decode<Postgres> for Uuid

fn decode(buf: &[u8]) -> Result<Uuid, DecodeError>

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