Trait FromValue 

pub trait FromValue: Sized {
    // Required method
    fn from_value(value: Value) -> Result<Self>;
}

Converts a Value read from a result row into a Rust type.

Returns an Err when the stored value cannot be coerced to the requested type (for example a NULL read into a non-optional field).

Required Methods

fn from_value(value: Value) -> Result<Self>

Attempts to read this type from a database value.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementations on Foreign Types

impl FromValue for OffsetDateTime

fn from_value(value: Value) -> Result<Self>

impl FromValue for String

fn from_value(value: Value) -> Result<Self>

impl FromValue for Uuid

fn from_value(value: Value) -> Result<Self>

impl FromValue for Value

fn from_value(value: Value) -> Result<Self>

impl FromValue for Vec<String>

fn from_value(value: Value) -> Result<Self>

impl FromValue for Vec<bool>

fn from_value(value: Value) -> Result<Self>

impl FromValue for Vec<f64>

fn from_value(value: Value) -> Result<Self>

impl FromValue for Vec<i32>

fn from_value(value: Value) -> Result<Self>

impl FromValue for Vec<i64>

fn from_value(value: Value) -> Result<Self>

impl FromValue for Vec<u8>

fn from_value(value: Value) -> Result<Self>

impl FromValue for bool

fn from_value(value: Value) -> Result<Self>

impl FromValue for f32

fn from_value(value: Value) -> Result<Self>

impl FromValue for f64

fn from_value(value: Value) -> Result<Self>

impl FromValue for i8

fn from_value(value: Value) -> Result<Self>

impl FromValue for i16

fn from_value(value: Value) -> Result<Self>

impl FromValue for i32

fn from_value(value: Value) -> Result<Self>

impl FromValue for i64

fn from_value(value: Value) -> Result<Self>

impl FromValue for u8

fn from_value(value: Value) -> Result<Self>

impl FromValue for u16

fn from_value(value: Value) -> Result<Self>

impl FromValue for u32

fn from_value(value: Value) -> Result<Self>

impl FromValue for u64

fn from_value(value: Value) -> Result<Self>

impl FromValue for usize

fn from_value(value: Value) -> Result<Self>

impl<T: FromValue> FromValue for Option<T>

fn from_value(value: Value) -> Result<Self>

Implementors

impl FromValue for tork_orm_core::Value