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polaris-task-force/src/migrations/20260906_061451_add_wiki_template_css.ts
Z8MB1E 51f7c803e0 feat(wiki): add scoped template CSS and developer HTML templates
WikiTemplates gains two fields: an optional css code field injected on
pages that use the template (selectors auto-scoped to a hash-based
.ptf-tpl-* class so templates never collide with each other or the app
shell), and a developer-only html field rendered verbatim (sanitized)
in place of the markdown body when transcluded.

- templateCss.ts scopes/sanitizes CSS, incl. nested at-rules; pages
  and the editor live preview inject scoped styles and drop the Card
  chrome in favor of a full-width article
- templateHtml.ts sanitizes HTML and splits prepared markdown around
  expansion sentinels so raw HTML renders without rehype-raw
- templates.ts adds extractTemplateNames/extractPlaceholders/
  extractDirectiveNames; prepareMarkdown threads an htmlTemplates map
- markdown pipeline gains rehype-highlight for fenced code blocks
- styles.css adds wiki prose typography + infobox demo styling
- docs: demo article and Infobox template authoring guide
2026-09-06 05:32:48 -04:00

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TypeScript

import { MigrateUpArgs, MigrateDownArgs, sql } from '@payloadcms/db-postgres'
export async function up({ db, payload, req }: MigrateUpArgs): Promise<void> {
await db.execute(sql`
ALTER TABLE "wiki_templates" ADD COLUMN "css" varchar;`)
}
export async function down({ db, payload, req }: MigrateDownArgs): Promise<void> {
await db.execute(sql`
ALTER TABLE "wiki_templates" DROP COLUMN "css";`)
}