Struct ItemInterner 

pub struct ItemInterner { /* private fields */ }

Per-category name -> ItemId interner used while importing rows: dimension values are looked up (reusing an existing item of that name) or minted a fresh sequential id. Seed from the model’s current items so re-import / refresh reuses items instead of creating duplicates with the same name.

Implementations

impl ItemInterner

pub fn seeded_from(model: &Model, item_id_base: u32) -> Self

Seed the interner from model’s existing items. Minted ids start at item_id_base, but never below max(existing item id) + 1: on a repeat import the caller passes the same fixed base (the GUI wizard always passes 1_000_000), so allocating straight from the base would re-mint an id a differently named item already owns — register then keeps the old name and the new row’s value silently lands under the wrong label. Allocating above the model’s maximum guarantees freshness while the base still acts as the floor for a fresh import.

pub fn intern(&mut self, category: CategoryId, name: &str) -> ItemId

Look up (or mint) the item id for name under category.

pub fn register(&self, model: &mut Model)

Register every interned item into model’s items/categories maps. Call once, after all rows are interned.

Trait Implementations

impl Debug for ItemInterner

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

Formats the value using the given formatter.

impl Default for ItemInterner

fn default() -> ItemInterner

Returns the “default value” for a type.