Trait SQLForeignKey 

pub trait SQLForeignKey {
    type SourceTable;
    type TargetTable;
    type SourceColumns;
    type TargetColumns;
}

A foreign key described by types, generated by the table macros.

Required Associated Types

type SourceTable

The table that declares the key.

type TargetTable

The table the key references.

type SourceColumns

The key’s columns in the source table, as a tuple.

type TargetColumns

The referenced columns in the target table, as a tuple.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl SQLForeignKey for NoForeignKey

type SourceTable = ()

type TargetTable = ()

type SourceColumns = ()

type TargetColumns = ()