[19.0][ADD] uom_preset

[bosd]

Summary

Adds uom_preset, an abstract-model registry that translates supplier-specific UoM codes to UN/CEFACT Recommendation 20 codes (via uom_unece), so they resolve to uom.uom records.

The module is intentionally narrow in scope: it only covers nomenclatures that do not use UN/CEFACT codes natively. For SCSN-style or any other Rec 20-conformant supplier flow, callers should look up uom.uom.unece_code directly via uom_unece — no preset is needed.

Vocabularies shipped

• pricat (11 entries) — the Dutch Pricat catalogue/order exchange format, sourced verbatim from INDI's public OCI-PunchOut documentation: https://www.indi.nl/nl-nl/slim-inkopen/erp-connecties/oci-punchout — section Eenheden-overzicht.
• x12_355 (160 entries) — ANSI ASC X12 element 355, used in US retail and manufacturing EDI. Only the entries where the X12 code differs from the UN/CEFACT Rec 20 code are shipped; pass-through entries are dropped so callers fall through to uom_unece directly. Source: Ariba Network UOM Mapping for ANSI X12 (SAP, 2014, PDF).

API

uom = self.env["uom.preset"]._resolve("pricat", "STU")
# -> uom.uom record whose unece_code == "C62", or empty recordset on miss.

Resolution is strict: an unknown vocabulary or a code missing from the chosen vocabulary returns an empty recordset. The caller chains its own fallback.

To add a vocabulary in a follow-up module, inherit uom.preset and extend _uom_preset_vocabularies / _uom_preset_selection (see USAGE).

Tests

16 cases including a guard that fails if anyone adds a pass-through entry to either dict (catches the "this vocab is just uom_unece again" mistake before review).