Enum OnDelete 

pub enum OnDelete {
    Cascade,
    Clear,
    Reject,
}

What happens to a referencing entity when its target is deleted.

Variants

Cascade

Delete the referencing entity too (door with its wall).

Clear

Remove the reference property.

Reject

Refuse the deletion.

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 Copy for OnDelete

impl Debug for OnDelete

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

Formats the value using the given formatter.

impl Default for OnDelete

fn default() -> OnDelete

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for OnDelete

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for OnDelete

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 Serialize for OnDelete

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for OnDelete