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Fall back to related languages for missing translations

オープン
#215 コメント 0 件 リアクション 0 件 担当者 0 名 GitHub で見る

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まだ誰も着手していません。

評価

難易度
5/5
見積もり時間
1週間以上
初心者へのやさしさ
42/100
issue の種類
機能追加
明瞭さ
おおむね明確
活発さ
活発
技術スタック
sqlite, typescript

調査の方向性

Start with src/app/server_translations.ts, the main implementation file named in the issue. Trace how translations are read, saved, and revisioned, then identify the editor and migration entry points for the remaining requirements. Done means fallback follows LANGUAGES order, inherited values are handled correctly on save, revisions detect fallback edits, the editor identifies inherited text, and the one-time cleanup is complete.

索引モデルが issue の本文から書いたものです。

説明

Problem

Regional variants of a language (e.g. de-AT and de-DE) are translated independently. Every text has to be stored redundantly in each variant, and the variants can silently drift apart when only one is updated.

Proposal

When a text has no translation in the requested language, fall back to the other languages with the same base code before using the main language. The chain is derived automatically from the LANGUAGES order, so no configuration is needed:

  • de-AT → other de-* languages (in LANGUAGES order) → main language
  • Example with LANGUAGES="en,de-DE,de-AT": de-AT → de-DE → en

A variant then only stores what actually differs (e.g. "Jänner", "Servus" in de-AT); everything else is inherited from its siblings. Listing languages in the right order controls preference (e.g. put de-DE before de-AT if de-CH should prefer it).

Implementation notes

  • Reading: overlay the fallback languages' translations first, then the requested language's own translations. Fallback works per text/media property, as translations already do, so a page may mix sources.
  • Saving: compare edits against the inherited view, not the main language. Otherwise untouched inherited text gets copied into the variant on the first save. Text equal to the inherited value removes the variant's override (consistent with today's "equal to the original removes the translation").
  • Versions: the translation revision must include the fallback languages' rows, so editing de-DE marks an open de-AT editor as stale.
  • Editor: in translation mode, indicate which texts are inherited from a fallback language and which are overridden.
  • Migration: one-time cleanup that removes variant values identical to their fallback.

Trade-offs

  • A variant can no longer deliberately show the main-language text while a sibling has a translation (it would fall back to the sibling).
  • Overrides don't follow later changes in the fallback language. That's usually intended, but could go stale unnoticed. A "fallback changed" indicator could be a follow-up.

Most of the change would live in src/app/server_translations.ts.

主要言語
TypeScript
スター
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フォーク
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平均マージ
1日 11時間
マージ済み PR(30日)
15

環境構築

  • Dockerfile または Docker Compose ファイルあり
  • プルリクエストのテンプレートなし
  • コントリビューションガイドなし

はじめの一歩

  1. issue を最後まで読み、次にプロジェクトのコントリビューションガイドを読みます。
  2. 着手することを issue にコメントします — 二人が同じ作業をするのを防げます。
  3. リポジトリをフォークし、ブランチを切って変更します。
  4. issue 番号を参照したプルリクエストを送ります。

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