Enum CascadeAction 

pub enum CascadeAction {
    NoAction,
    Cascade,
    SetNull,
    SetDefault,
    Restrict,
}

Cascade action for foreign keys

Variants

NoAction

No action

Cascade

Cascade (delete/update related records)

SetNull

Set null

SetDefault

Set default

Restrict

Restrict (prevent if related records exist)

Trait Implementations

impl Clone for CascadeAction

fn clone(&self) -> CascadeAction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CascadeAction

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

Formats the value using the given formatter.

impl Default for CascadeAction

fn default() -> CascadeAction

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CascadeAction

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for CascadeAction

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for CascadeAction

impl Eq for CascadeAction

impl StructuralPartialEq for CascadeAction