Josep Piguillem
3897113313
Laravel 13 + Filament 5 admin panel and REST API for a non-profit developer collective, backed by the Pireon OAuth identity server. The public site is a separate, server-rendered application consuming /api/public/v1. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
94 lines
3.1 KiB
PHP
94 lines
3.1 KiB
PHP
<?php
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declare(strict_types=1);
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namespace App\Models\Concerns;
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use App\Models\Redirect;
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use App\Support\SiteUrls;
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use Illuminate\Database\Eloquent\Model;
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/**
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* Leaves a redirect behind when a slug changes.
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*
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* Renaming a slug breaks every link anybody shared, every bookmark and every
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* search result — silently, because nothing notices and the frontend only
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* finds out when a visitor gets a 404. The moment the slug changes is the only
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* moment the old address is still known, so that is when the note is written.
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*/
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trait RecordsSlugChanges
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{
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/**
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* The `site.paths` key this model publishes under.
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*/
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abstract public function publicPathType(): string;
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public static function bootRecordsSlugChanges(): void
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{
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static::updated(function (Model $model): void {
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if (! $model->wasChanged('slug')) {
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return;
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}
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$model->recordSlugChange();
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});
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}
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protected function recordSlugChange(): void
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{
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$type = $this->publicPathType();
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$previous = (array) json_decode((string) json_encode($this->getOriginal('slug')), true);
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$current = (array) $this->getTranslations('slug');
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foreach (array_keys((array) config('locales.supported')) as $locale) {
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$was = (string) ($previous[$locale] ?? '');
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$now = (string) ($current[$locale] ?? '');
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// Nothing to redirect from when the record had no address in this
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// language, and nowhere to redirect to when it no longer has one.
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if (blank($was) || blank($now) || $was === $now) {
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continue;
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}
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$from = Redirect::normalise(SiteUrls::path($type, $locale, $was));
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$to = Redirect::normalise(SiteUrls::path($type, $locale, $now));
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if ($from === $to) {
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continue;
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}
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$this->writeRedirect($from, $to, $locale);
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}
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}
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protected function writeRedirect(string $from, string $to, string $locale): void
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{
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$scope = fn () => Redirect::query()->where('locale', $locale);
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// The new address resolves to this record again, so any rule pointing
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// away from it is now wrong — this is what renaming something back to
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// its original slug looks like.
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$scope()->where('from', $to)->delete();
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// Whoever pointed at the old address now points at the new one, so a
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// frontend never has to follow two hops.
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$scope()->where('to', $from)->update(['to' => $to]);
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$redirect = Redirect::query()->firstOrNew(['from' => $from, 'locale' => $locale]);
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// `source` is set here rather than through mass assignment: it records
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// what the application did, not anything somebody submitted.
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$redirect->forceFill([
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'to' => $to,
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'status' => 301,
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'is_enabled' => true,
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'source_type' => $this->getMorphClass(),
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'source_id' => $this->getKey(),
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])->save();
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// Belt and braces: a rule pointing at its own address would send a
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// browser round for ever.
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Redirect::query()->whereColumn('from', 'to')->delete();
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}
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}
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