Trait butane::AsPrimaryKey[−][src]

pub trait AsPrimaryKey<T> where
    T: DataObject, {
    fn as_pk(&self) -> Cow<'_, <T as DataObject>::PKType>;
}

Expand description

Trait for referencing the primary key for a given model. Used to implement ForeignKey equality tests.

Required methods

fn as_pk(&self) -> Cow<'_, <T as DataObject>::PKType>

Implementors

impl<P, T> AsPrimaryKey<T> for P where
P: PrimaryKeyType,
T: DataObject<PKType = P>,

impl<T> AsPrimaryKey<T> for ForeignKey<T> where
T: DataObject,