Trait sqlx::database::HasValueRef

pub trait HasValueRef<'r> {
    type Database: Database;
    type ValueRef: ValueRef<'r>
    where
        <Self::ValueRef as ValueRef<'r>>::Database == Self::Database;
}

Associate Database with a ValueRef of a generic lifetime.

---

The upcoming Rust feature, Generic Associated Types, should obviate the need for this trait.

Required Associated Types

type Database: Database

type ValueRef: ValueRef<'r>
where
    <Self::ValueRef as ValueRef<'r>>::Database == Self::Database

The concrete type used to hold a reference to the not-yet-decoded value that has just been received from the database.

Implementors

impl<'r> HasValueRef<'r> for Any

type Database = Any

type ValueRef = AnyValueRef<'r>

impl<'r> HasValueRef<'r> for Mssql

type Database = Mssql

type ValueRef = MssqlValueRef<'r>

impl<'r> HasValueRef<'r> for MySql

type Database = MySql

type ValueRef = MySqlValueRef<'r>

impl<'r> HasValueRef<'r> for Postgres

type Database = Postgres

type ValueRef = PgValueRef<'r>

impl<'r> HasValueRef<'r> for Sqlite

type Database = Sqlite

type ValueRef = SqliteValueRef<'r>