feat(translations): resolve imaging type labels via translated_string at execution

[hrazasalman]

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Claude finished @hrazasalman's task in 3m 4s —— View job

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PR Review: feat(translations) — Imaging type DB translations

Verdict: ⚠️ a few items worth a look, but the approach is sound. 0 blockers / 3 suggestions / 3 nits.

Todo

• Read repo guidance (CLAUDE.md / AGENT.md / REVIEW.md)
• Examine PR diff against origin/main
• Review macros/translations changes
• Review new translated_strings base model
• Review imaging-request reports and dataset YML
• Review generator script changes
• Run repo validation checks (validate_report_configs.py, check_translations.py, sqlfluff) — not runnable in this sandbox (no permission / sqlfluff not installed). Please run locally before merge.

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🟡 Suggestion 1 — imaging_type loses its friendly fallback

macros/models/imaging_requests.sql:65-80 (removed) used a hand-coded CASE (xRay → X-Ray, vascularStudy → Vascular Study, …). After this PR, ir.imaging_type exposes the raw code and the reports rely entirely on coalesce(t_imaging_type.text, imaging_type).

If a deployment's translated_strings table is missing a row for imaging.property.type.<code> (e.g. a code added to a release before the CSV-seeded translations land), the report column will now render the raw code (xRay, ctScan, vascularStudy) instead of the previous friendly label. That is a behavioural regression for any environment whose translated_strings is not authoritative.

Suggested options:

• Confirm that every imaging_type code currently produced by Tamanu has a default-language row in translated_strings on every supported deployment, or
• Keep the CASE as a secondary fallback: coalesce(t_imaging_type.text, <hardcoded case>, imaging_type).

Fix this →

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🟡 Suggestion 2 — note_type semantics changed silently (code → display name)

models/bases/notes.sql:7 flipped rd.code as note_type → rd.name as note_type. Internally the PR keeps things consistent (filters everywhere now use note_type_id, e.g. note_type_id != 'notetype-system'), but note_type is part of the published base model surface. Any downstream tamanu-dbt-* package or external consumer that currently treats note_type as a code-like enum ('system', 'areaToBeImaged', …) will break — values are now display names.

Worth either:

• explicitly noting this in the PR description / release notes for deployment repos, or
• considering whether note_type should stay as the code and downstream code use a separate note_type_name column.

Also models/bases/notes.yml:27-28 describes the new column as {{ doc('reference_data__name') }} for the note type. — mixing a doc-block reference with trailing prose. AGENT.md says descriptions should reuse doc blocks; consider adding a dedicated notes__note_type block in models/sources/notes.md.

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🟡 Suggestion 3 — get_translation_lookup() with no prefix returns the entire table

macros/translations.sql:70-99. When prefix_key is none (the default), key_list is empty so no where is emitted, and the CTE materialises every row in translated_strings. That's a footgun: any caller that forgets to pass a prefix gets a full-table scan as a CTE.

Consider either:

• making prefix_key mandatory (omit the default), or
• raising a compiler error when no prefix is provided.

The companion change in get_translation_prefix (now exceptions.raise_compiler_error on unknown keys) is a great improvement — applying the same defensiveness here would be consistent.

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🔵 Nit 1 — n.note_type in encounter_summary no longer translated

macros/models/encounter_summary.sql:381 previously wrapped n.note_type in translate_column_value('NOTE_TYPE_LABELS', ...). Now it emits n.note_type directly (i.e. reference_data.name in the source DB language). Since the PR introduces a runtime-translation mechanism, it feels inconsistent that imaging types are translated via translated_strings at query time while note types fall back to reference_data.name only. Probably out of scope for this PR, but worth a follow-up ticket.

🔵 Nit 2 — Group-by widened by a functionally-dependent column

models/reports/sql/standard/imaging-requests-summary.sql:42-43 (and the sensitive variant) add t_imaging_type.text to both group by and order by. Because the join is 1:1 on string_id = '…' || ir.imaging_type and ir.imaging_type is already grouped, t_imaging_type.text is functionally determined by ir.imaging_type. Adding it is required for Postgres' grouping rules, but order by doesn't need both — the trailing t_imaging_type.text in order by is redundant.

🔵 Nit 3 — language not escaped in the lookup CTE

macros/translations.sql:90 interpolates '{{ language }}' directly into SQL. The prefix is escaped (p.replace("'", "''")) but the language value isn't. In practice language comes from a dbt var so this isn't exploitable, but for symmetry / future-proofing a language.replace("'", "''") would be consistent.

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✅ Good things

• get_translation_prefix now hard-errors on unknown keys — much nicer than the previous silent empty string.
• Extracting generate_translation_macro into scripts/utils/translation_utils.py and switching to repr() for emitting Jinja literals is a clean fix for the old hand-rolled escaping.
• New translated_strings base model and YAML reuse existing doc blocks (models/sources/translated_strings.md) correctly.
• Pattern of building a small _translations CTE per report keeps the runtime translation logic local and easy to audit.

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Suggested regression checks before merge

python scripts/validate_report_configs.py
python scripts/check_translations.py
sqlfluff lint .
dbt build --select imaging_requests+ encounter_summary+ user_audit+ --profiles-dir config

Spot-check a deployment whose translated_strings table is not fully populated with imaging.property.type.* rows, to confirm the fallback behaviour is acceptable.

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• Branch: feat/imaging-type-db-translations-main