Struct SignalEvent 

#[non_exhaustive]
pub struct SignalEvent<'a> {
    pub kind: SignalKind,
    pub db: &'a Db,
    pub model: &'static ModelMeta,
    pub relation: Option<&'static str>,
    pub pk_set: &'a [Value],
}

Context handed to a receiver next to the instance.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

kind: SignalKind

Which signal fired, with its payload.

db: &'a Db

The handle the operation runs on (the open transaction, if any).

model: &'static ModelMeta

Metadata of the instance’s model.

relation: Option<&'static str>

m2m_changed only: the relation’s field name on the declaring model.

pk_set: &'a [Value]

m2m_changed only: primary keys of the targets involved (empty for clear).

Trait Implementations

impl<'a> Debug for SignalEvent<'a>

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

Formats the value using the given formatter.