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gerbeur/api/db/migrations/0002_dump_thumbnail.ts
khannurien f3f07ed1e3
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v3: every doc opens with the role, then the mechanism, then the details — the docs were written bottom-up: what a thing does first ("Declares the three contexts WSProvider fills…"), details that only make sense once its purpose is known next, and the reason it exists last ("…so that a feed doesn't re-render"), so a reader had nothing to hang the first sentences on. The README's rule caused it, since a module doc "opened with what the module does"; it now opens with the module's role in the app, and the value-side phrasing of a type ("Returned to Y by X") comes once the role is said, with WSContext as the before and after. WSContext.ts is rewritten that way throughout, and so are the docs elsewhere that buried their purpose in a trailing "so that" (the migrations, og, image-proxy, public-address, useFading, useFeedCache, the drafts), opened on a generic verb that hid it ("Holds", "Declares", "Loads", "Defines", "Types": the contexts and providers, the shared types, the models, the hooks), or were label fragments ("The page of a dump…", "A row of tabs."). A function whose verb is its action ("Stores session"), a props or result type, and a protocol message ("Sent by X when Y") already say their role and are left as they are. Only comments changed, and the catalogs only move their references; deno fmt, deno lint and doc:lint are clean.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-29 21:42:08 +00:00

25 lines
702 B
TypeScript

/**
* Lets a poster upload a thumbnail that replaces the fetched one. It adds
* `dumps.custom_thumbnail_mime`, which holds the uploaded image's type; NULL
* means the dump has none.
*
* @module
*/
import type { DatabaseSync } from "node:sqlite";
/**
* Run once by `runMigrations`. Existing dumps keep their fetched thumbnails,
* and a database made from schema.sql already has the column.
*/
export function up(db: DatabaseSync): void {
const dumpCols = db.prepare(`PRAGMA table_info(dumps);`).all() as {
name: string;
}[];
if (!dumpCols.some((c) => c.name === "custom_thumbnail_mime")) {
db.exec(
`ALTER TABLE dumps ADD COLUMN custom_thumbnail_mime TEXT;`,
);
}
}