Enum OnDelete 

pub enum OnDelete {
    Cascade,
    Restrict,
    NoAction,
    SetNull {
        permitted: bool,
    },
}

The foreign key’s ON DELETE action (§9.1).

Variants

Cascade

A stale reference takes the child out.

Restrict

A stale reference takes the child out.

NoAction

A stale reference takes the child out.

SetNull

Read null after a parent deletion if SQLite accepts it.

Fields

permitted: bool

Whether the substitution passes the row’s CHECK constraints.

Trait Implementations

impl Clone for OnDelete

fn clone(&self) -> OnDelete

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OnDelete

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

Formats the value using the given formatter.

impl PartialEq for OnDelete

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for OnDelete

impl StructuralPartialEq for OnDelete