Enum UpdateData 

pub enum UpdateData {
    Set(Vec<(Idiom, Expr)>),
    Unset(Vec<Idiom>),
    Content(Expr),
}

The data a MutationStage::Update applies. Every Expr is binding-row scoped (the same a.x → Idiom[Field("a"),Field("x")] rule the read side uses) and is evaluated against the current binding row before the write.

Variants

Set(Vec<(Idiom, Expr)>)

SET a.p = v (one assignment per item): set each field path.

Unset(Vec<Idiom>)

REMOVE a.p (one path per item): unset each field.

Content(Expr)

SET a = {…}: replace all user properties with the object expression (the record’s id, and an edge’s in/out, are preserved by the native CONTENT path).

Trait Implementations

impl Clone for UpdateData

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 UpdateData

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

Formats the value using the given formatter.

impl Eq for UpdateData

impl Hash for UpdateData

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for UpdateData

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for UpdateData