Enum DeletePolicy 

pub enum DeletePolicy {
    Cascade,
    Reject,
}

What to do with constraints and referencing entities when deleting.

Variants

Cascade

Delete dependent constraints and apply each reference’s onDelete policy.

Reject

Fail if anything depends on the deleted entities.

Trait Implementations

impl Clone for DeletePolicy

fn clone(&self) -> DeletePolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DeletePolicy

impl Debug for DeletePolicy

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

Formats the value using the given formatter.

impl Default for DeletePolicy

fn default() -> DeletePolicy

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DeletePolicy

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for DeletePolicy

impl PartialEq for DeletePolicy

fn eq(&self, other: &DeletePolicy) -> 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 DeletePolicy

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 DeletePolicy