Trait FromColumn 

pub trait FromColumn: Sized {
    // Required method
    fn from_column(v: Value) -> Result<Self, DbError>;
}

Available on crate features model-mysql or model-postgres or model-sqlite only.

Convert a Value into a Rust type.

Required Methods

fn from_column(v: Value) -> Result<Self, DbError>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl FromColumn for String

fn from_column(v: Value) -> Result<String, DbError>

impl FromColumn for bool

fn from_column(v: Value) -> Result<bool, DbError>

impl FromColumn for f32

fn from_column(v: Value) -> Result<f32, DbError>

impl FromColumn for f64

fn from_column(v: Value) -> Result<f64, DbError>

impl FromColumn for i16

fn from_column(v: Value) -> Result<i16, DbError>

impl FromColumn for i32

fn from_column(v: Value) -> Result<i32, DbError>

impl FromColumn for i64

fn from_column(v: Value) -> Result<i64, DbError>

impl FromColumn for u32

fn from_column(v: Value) -> Result<u32, DbError>

impl FromColumn for u64

fn from_column(v: Value) -> Result<u64, DbError>

impl<T> FromColumn for Option<T>

where T: FromColumn,

fn from_column(v: Value) -> Result<Option<T>, DbError>

Implementors

impl FromColumn for Timestamp

impl FromColumn for Uuid

impl FromColumn for Value

The value as the driver decoded it (18.30.0).