Struct ForeignKey 

pub struct ForeignKey<M: Model>(pub <M as Model>::Pk, _);

A foreign key reference: stores the primary key value of the related model. The value type follows the target’s primary key (Model::Pk): Uuid for FieldUuid, i32 for FieldAutoInt, i64 for FieldAutoBigInt. The column type in the schema and migrations follows it too.

Example

#[derive(Model)]
struct Article {
    id: FieldUuid,
    author_id: ForeignKey<User>,
}

Tuple Fields

0: <M as Model>::Pk

Implementations

impl<M: Model> ForeignKey<M>

pub fn new(id: <M as Model>::Pk) -> Self

pub fn id(&self) -> <M as Model>::Pk

Trait Implementations

impl<M: Model> Clone for ForeignKey<M>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<M: Model> Copy for ForeignKey<M>

impl<M: Model> Debug for ForeignKey<M>

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

Formats the value using the given formatter.

impl<'de, M: Model> Deserialize<'de> for ForeignKey<M>

where <M as Model>::Pk: DeserializeOwned,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<M: Model> Eq for ForeignKey<M>

impl<M: Model<Pk = Uuid>> FilterValue<ForeignKey<M>> for Uuid

fn into_sql_value(self) -> SqlValue

impl<M: Model<Pk = i32>> FilterValue<ForeignKey<M>> for i32

fn into_sql_value(self) -> SqlValue

impl<M: Model<Pk = i64>> FilterValue<ForeignKey<M>> for i64

fn into_sql_value(self) -> SqlValue

impl<M: Model<Pk = Uuid>> FilterValue<ForeignKey<M>> for FieldUuid

fn into_sql_value(self) -> SqlValue

impl<M: Model> Hash for ForeignKey<M>

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<M: Model> PartialEq for ForeignKey<M>

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl<M: Model> Serialize for ForeignKey<M>

where <M as Model>::Pk: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<M: Model> ToSqlValue for ForeignKey<M>

fn to_sql_value(&self) -> SqlValue