Enum TriggerValueSource 

pub enum TriggerValueSource {
    NewField(String),
    OldField(String),
    Constant(Value),
    Now,
}

Where one field of a trigger’s effect document gets its value from — the closed set of transformations v1 supports. There is no scripting/plugin layer in this engine, so “effect” cannot be arbitrary code the way it would be in the TS engine; it is this declared mapping, evaluated by the engine itself against the firing operation’s old/new record.

Variants

NewField(String)

OldField(String)

Constant(Value)

Now

Trait Implementations

impl Clone for TriggerValueSource

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TriggerValueSource

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

Formats the value using the given formatter.

impl PartialEq for TriggerValueSource

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for TriggerValueSource