Struct ForeignKey 

pub struct ForeignKey {
    pub fields: Vec<ForeignKeyField>,
}

A foreign key linking one model’s fields to another model’s primary key.

A ForeignKey is composed of one or more ForeignKeyField pairs, each mapping a source field (on the owning model) to a target field (on the referenced model). For single-column primary keys the fields vec has one entry; composite keys have multiple.

Examples

use toasty_core::schema::app::{ForeignKey, ForeignKeyField, FieldId, ModelId};

let fk = ForeignKey {
    fields: vec![ForeignKeyField {
        source: ModelId(0).field(1),
        target: ModelId(1).field(0),
    }],
};
assert_eq!(fk.fields.len(), 1);

Fields

fields: Vec<ForeignKeyField>

The field pairs that make up this foreign key.

Trait Implementations

impl Clone for ForeignKey

fn clone(&self) -> ForeignKey

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ForeignKey

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.