Enum Action 

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

Referential action for foreign key updates or deletes.

Variants

NoAction

No action.

Restrict

Reject operation.

Cascade

Propagate change.

SetNull

Set to NULL.

SetDefault

Set to DEFAULT.

Trait Implementations

impl Debug for Action

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

Formats the value using the given formatter.

impl Default for Action

fn default() -> Action

Returns the “default value” for a type.

impl PartialEq for Action

fn eq(&self, other: &Action) -> 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 ToTokens for Action

fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStream

where Self: Sized,

Convert self directly into a TokenStream object.

impl Eq for Action

impl StructuralPartialEq for Action