Trait SqlEnum 

pub trait SqlEnum:
    Sized
    + 'static
    + Clone {
    type IntegerType: Display + TryInto<usize> + IntoSqlType;

    const ENUM_NAME: &'static str;
    const VARIANTS_IN_ORDER: &'static [Self];

    // Required method
    fn to_integer(self) -> Self::IntegerType;

    // Provided method
    fn from_integer(integer: Self::IntegerType) -> Result<Self> { ... }
}

An enum consisting of only empty variants, backed up by an integer type, which can be used in sql statements.

Required Associated Constants

const ENUM_NAME: &'static str

const VARIANTS_IN_ORDER: &'static [Self]

The variants of the enum, in order.

Required Associated Types

type IntegerType: Display + TryInto<usize> + IntoSqlType

The smallest integer type needed to represent this enum.

Required Methods

fn to_integer(self) -> Self::IntegerType

Converts a variant of this enum to an integer.

Provided Methods

fn from_integer(integer: Self::IntegerType) -> Result<Self>

Converts an integer to a variant of this enum.

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.

Implementors