Struct EntityEditor 

pub struct EntityEditor<'a> { /* private fields */ }

A schema-checked edit of one entity already present in a Model.

Named edits are resolved against the entity’s declaration and the entire projected entity is validated before any write is staged. Reference integrity, stale revisions, and atomic commit remain Transaction’s responsibility.

Implementations

impl<'a> EntityEditor<'a>

pub fn new( schema: &'a Schema, model: &Model, id: EntityId, ) -> AuthorResult<Self>

Start editing id against the model snapshot used to open a transaction.

Errors

Returns AuthorError::MissingEntity when id is absent. A caller should create its Transaction from the same model snapshot.

pub fn set(self, attribute: impl Into<String>, value: Value) -> Self

Replace one attribute by its declared name.

pub fn text( self, attribute: impl Into<String>, text: impl Into<Arc<str>>, ) -> Self

Replace a text attribute.

pub fn real(self, attribute: impl Into<String>, value: f64) -> Self

Replace a real-valued attribute.

pub fn reference(self, attribute: impl Into<String>, id: EntityId) -> Self

Replace an entity-reference attribute.

pub fn enumeration( self, attribute: impl Into<String>, constant: impl Into<Arc<str>>, ) -> Self

Replace an enumeration attribute.

pub fn stage(self, transaction: &mut Transaction) -> AuthorResult<()>

Validate the projected entity and stage its changed slots.

Validation completes before the first call to Transaction::set_attribute, so any AuthorError leaves transaction unchanged.

Trait Implementations

impl<'a> Clone for EntityEditor<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for EntityEditor<'a>

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

Formats the value using the given formatter.