Struct ForeignKeyBuilder 

pub struct ForeignKeyBuilder<'a> { /* private fields */ }

Fluent builder returned by Table::foreign(col). Drop it (or call .constrain()) to commit the foreign key SQL.

Implementations

impl<'a> ForeignKeyBuilder<'a>

pub fn references(self, column: &str) -> ForeignKeyBuilder<'a>

The referenced column on the foreign table. Default: "id".

pub fn on(self, table: &str) -> ForeignKeyBuilder<'a>

The foreign table.

pub fn on_delete(self, action: &str) -> ForeignKeyBuilder<'a>

ON DELETE CASCADE (or RESTRICT / SET NULL / SET DEFAULT).

pub fn on_update(self, action: &str) -> ForeignKeyBuilder<'a>

pub fn cascade(self) -> ForeignKeyBuilder<'a>

pub fn set_null(self) -> ForeignKeyBuilder<'a>

pub fn restrict(self) -> ForeignKeyBuilder<'a>

pub fn commit(self)

Commit the constraint to the table. Called explicitly OR implicitly via Drop.

Trait Implementations

impl<'a> Drop for ForeignKeyBuilder<'a>

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.