33 lines
1.4 KiB
JavaScript
33 lines
1.4 KiB
JavaScript
/**
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* When a document's slug changes, appends the OLD slug to a `slugHistory` array
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* field. The project reads slugHistory to serve a 301 redirect from old URLs to
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* the current one — so changing a slug doesn't 404 the old address (a real SEO
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* loss / audit finding).
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*
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* Requires a `slugHistory` field on the collection:
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* { name: 'slugHistory', type: 'array', fields: [{ name: 'slug', type: 'text' }],
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* admin: { readOnly: true } }
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*
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* hooks: { beforeChange: [trackSlugHistoryHook] }
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*
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* The project then, in resolveRoute or a redirect check, looks up slugHistory and
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* 301s to the current slug. See docs/hooks.md.
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*/ export const trackSlugHistoryHook = ({ data, originalDoc })=>{
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const oldSlug = originalDoc?.slug;
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const newSlug = data.slug;
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if (typeof oldSlug === 'string' && typeof newSlug === 'string' && oldSlug !== newSlug && oldSlug.length > 0) {
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const history = Array.isArray(data.slugHistory) ? data.slugHistory : Array.isArray(originalDoc?.slugHistory) ? originalDoc.slugHistory : [];
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// Avoid duplicates; don't record the new slug itself.
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if (!history.some((h)=>h?.slug === oldSlug)) {
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data.slugHistory = [
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...history,
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{
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slug: oldSlug
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}
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];
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}
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}
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return data;
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};
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//# sourceMappingURL=trackSlugHistory.js.map
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