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Named import mappings: wire defineMapping into the import path (#2611) - #2629
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… into the import path Closes the consumer gap behind #2611: a registered `mapping` artifact (defineMapping / stack mappings:) is now resolvable by name at import. - rest: `mappingName` on POST /data/:object/import (sync + async job path via the shared prepareImportRequest). Resolution via getMetaItem ('mapping'); 404 MAPPING_NOT_FOUND, 400 MAPPING_TARGET_MISMATCH / MAPPING_FORMAT_MISMATCH / CONFLICTING_MAPPING (mutually exclusive with the inline rename — one mapping source of truth per request). The artifact's mode/upsertKey apply as writeMode/matchFields DEFAULTS (explicit request values win). - transforms (import-mapping.ts, unit-tested): none/constant/map/split/ join implemented; lookup passes the raw value through to the import path's existing reference resolution (no second dialect); javascript is REJECTED with 400 UNSUPPORTED_TRANSFORM — no server-side sandbox, and a silently skipped transform would corrupt data (Prime Directive #10). Artifact output is a strict projection (only mapped targets reach the write path); the inline mapping keeps its passthrough rename semantics — inline = one-off wizard rename, artifact = reusable governed ETL. - spec: defineStack cross-reference validation now rejects a mapping whose targetObject is undefined and any javascript transform at BUILD time (Prime Directive #12: fail at the producer). Tests: 7 transform unit tests + 6 end-to-end route tests (real engine/ protocol/registry; happy path proves artifact map→label→code coercion composition, lookup name→id, strict projection, artifact upsert defaults, and every error code) + 3 build-lint tests. rest 211 · spec 6695 — green. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01G6pPpRszk9cD3SxcKNFMWs
- src/data/mappings/index.ts — showcase_inquiry_feed: the marketing-CSV → inquiry mapping (rename + map transform for channel codes), with artifact-declared idempotent upsert on email. Wired via stack mappings:. - STACK_COLLECTION_COVERAGE.mappings: waived → demonstrated (the consumer landed in the previous commit). - gap-fill tests assert the wiring AND target liveness: every mapped target and upsertKey must be a real field of the target object — a typo'd target would silently import into nowhere. - Data tour documents the named-mapping workflow; changeset added. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01G6pPpRszk9cD3SxcKNFMWs
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📓 Docs Drift CheckThis PR changes 3 package(s): 94 hand-written doc(s) reference the affected code and may need an implementation-accuracy re-verification:
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…passed) With the import consumer landed, mapping now passes all three admission criteria (independent lifecycle · governable · real consumer), so it graduates from a bare stack collection to a registry kind (26 → 27): - MetadataTypeSchema + DEFAULT_METADATA_TYPE_REGISTRY entry (domain data, allowRuntimeCreate: true so the import wizard can SAVE a hand-built mapping as a named artifact; packaged mappings stay locked like every artifact-backed item; *.mapping.ts file pattern). - metadata-type-schemas: MappingSchema wired → Studio's zero-code metadata admin auto-renders list/edit forms for mappings, and /api/v1/meta/types/mapping serves the JSON Schema (no Studio code). - metadata-create-seeds: 'New Import Mapping' template so runtime-create starts from a valid artifact. - metadata-core lockstep enum; showcase KIND_COVERAGE gains the mapping kind entry (and drops the now-redundant stack-collection row); reference docs regenerated. spec 6696 · metadata-core 80 · objectql 773 · rest 211 · showcase verify — green. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01G6pPpRszk9cD3SxcKNFMWs
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July 5, 2026 08:59
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What
Closes#2611.
defineMapping/ stackmappings:artifacts were registered but never consumed — the classic enterprise capability (recurring feeds, packaged migration kits, programmatic imports) existed only as inert metadata. Two commits:feat(rest,spec)— the consumer.POST /data/:object/import(sync + async job path, sharedprepareImportRequest) acceptsmappingName, resolving the registered artifact viagetMetaItem('mapping')and applying itsfieldMappingpipeline as a strict projection before the existing coercion/reference resolution.none/constant/map/split/joinimplemented;lookuppasses through to the import path's built-in name→id resolution (no second dialect);javascript→ 400UNSUPPORTED_TRANSFORM(no server-side sandbox — a silently skipped transform would corrupt data).mode/upsertKeyapply aswriteMode/matchFieldsdefaults; explicit request values win.mappingNameis mutually exclusive with the inline rename (400 CONFLICTING_MAPPING) — one mapping source of truth per request; the inline{column: field}rename keeps its one-off wizard semantics (unmapped passthrough), the artifact is the governed ETL form (strict projection).MAPPING_NOT_FOUND(404),MAPPING_TARGET_MISMATCH,MAPPING_FORMAT_MISMATCH/MAPPING_FORMAT_UNSUPPORTED,CONFLICTING_MAPPING,UNSUPPORTED_TRANSFORM.defineStackcross-reference validation rejects mappings targeting undefined objects and anyjavascripttransform at build time.feat(showcase)— the demo + waiver flip.showcase_inquiry_feedmaps a marketing tool's CSV (Full Name/Channel/…) ontoshowcase_inquirywith amaptransform for channel codes and artifact-declared idempotent upsert on email.STACK_COLLECTION_COVERAGE.mappingsflips waived → demonstrated; gap-fill tests assert wiring and target liveness (every mapped target/upsertKey must be a real field). Data tour documents the workflow.Why
Enterprise deployments live on recurring, headless imports (nightly ERP feeds, bank statements, partner files) and packaged migration kits — both need the mapping to be a governed, versioned, package-shippable artifact, not wizard state. This lands the missing consumer, and the capability now passes the ADR-0088 admission test it previously failed.
Verification
import-mapping.test.ts). Integration: 6 end-to-end route tests against the real engine/protocol/registry — the happy path proves artifactmap→ select-label coercion composition, lookup name→id, strict projection, artifact upsert defaults, plus every error code. Build lint: 3 newdefineStacktests. Suites: rest 211, spec 6695, showcase verify 55 — green.objectstack dev): imported a marketing CSV withmappingName=showcase_inquiry_feed→created: 2; re-imported the same file →updated: 2(idempotent upsert from artifact defaults); unknown mapping → 404; stored rows showChannel: "Webform"→source: "website"and"Partner Referral"→"referral".🤖 Generated with Claude Code
https://claude.ai/code/session_01G6pPpRszk9cD3SxcKNFMWs
Generated by Claude Code