Trait SqlTypeConvert 

pub trait SqlTypeConvert: Sized {
    type Raw: Sized;

    // Required methods
    fn to_raw_sql(self) -> Self::Raw;
    fn from_raw_sql(
        _raw: Self::Raw,
    ) -> Result<Self, DatabaseTypeConversionError>;

    // Provided method
    fn map_err<E: Error + Send + Sync + 'static>(
        source: E,
    ) -> DatabaseTypeConversionError { ... }
}

Convert from and to it’s database representation and back

We do not assume sanity of DB types.

Required Associated Types

type Raw: Sized

Required Methods

fn to_raw_sql(self) -> Self::Raw

fn from_raw_sql(_raw: Self::Raw) -> Result<Self, DatabaseTypeConversionError>

Provided Methods

fn map_err<E: Error + Send + Sync + 'static>( source: E, ) -> DatabaseTypeConversionError

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl SqlTypeConvert for StorageSlotType

type Raw = i32

fn from_raw_sql(raw: Self::Raw) -> Result<Self, DatabaseTypeConversionError>

fn to_raw_sql(self) -> Self::Raw

impl SqlTypeConvert for StorageSlotName

type Raw = String

fn from_raw_sql(raw: Self::Raw) -> Result<Self, DatabaseTypeConversionError>

fn to_raw_sql(self) -> Self::Raw

impl SqlTypeConvert for BlockNumber

type Raw = i64

fn from_raw_sql(raw: Self::Raw) -> Result<Self, DatabaseTypeConversionError>

fn to_raw_sql(self) -> Self::Raw

impl SqlTypeConvert for NoteTag

type Raw = i32

fn from_raw_sql(raw: Self::Raw) -> Result<Self, DatabaseTypeConversionError>

fn to_raw_sql(self) -> Self::Raw

Implementors