Struct EntitySubtypeManager 

pub struct EntitySubtypeManager<'db, S: Schema, M: SubtypeRootModel<Schema = S> + EntityModel<Schema = S>> { /* private fields */ }

Read-only, schema/model-branded manager for an inclusive generated subtype association. Results are the generated associated leaf or closed family type; no writes are exposed. Reads and counts can return input/schema-validation, database/transaction/close, or hydration/model-validation errors.

Implementations

impl<S, M> EntitySubtypeManager<'_, S, M>

where S: Schema, M: SubtypeRootModel<Schema = S> + EntityModel<Schema = S>,

pub async fn get_by_iid(&self, _iid: &str) -> Result<Option<M::Subtypes>>

Reads one canonical IID across the root and its generated concrete descendants. Invalid IIDs are rejected before I/O; a valid but absent IID returns None.

pub async fn all(&self) -> Result<Vec<M::Subtypes>>

Reads all root/descendant models in application result order, materialized as the generated leaf or family result. Validation, database, hydration, and close errors are returned without exposing implementation details.

pub async fn count(&self) -> Result<u64>

Counts the root and all concrete descendants using the inclusive subtype scope.