m105
72b87ab579
Adds sites.root_domain (indexed string, backfilled for existing rows)
computed via a naive "last two labels" heuristic (App\Support\RootDomain)
— good enough for example.com/somesite.es, but wrong for two-part
public suffixes like .co.uk. Doing that correctly needs the Mozilla
Public Suffix List; flagged as a known simplification rather than
built now.
Deliberately not a hard FK: like Backlink.target_domain, a subdomain
can get indexed before its root domain does (or vice versa), so
Site::subdomains()/rootSite() match on the domain string rather than
requiring the relationship to exist at write time.
Site detail page: a root domain shows a paginated "Subdomains"
section (same guest-preview cap as Pages/Backlinks); a subdomain
shows "Subdomain of {root}" linking back, when the root is itself
indexed.
Verified against real data: 21k.ro correctly lists its two known
subdomains (buzau.21k.ro, timisoara.21k.ro), each of which correctly
links back to 21k.ro. Added SubdomainsTest (root lists subdomains,
subdomain links to root, empty state) — full suite (31 tests) passes.
25 lines
749 B
PHP
25 lines
749 B
PHP
<?php
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namespace App\Support;
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/**
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* Naive "last two labels" root-domain heuristic — good enough for the common case
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* (example.com, somesite.es) but wrong for real-world two-part public suffixes like
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* .co.uk or .com.au, where it would treat "co.uk" as the root instead of
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* "example.co.uk". Doing that correctly means integrating the Mozilla Public Suffix
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* List; this is a deliberate simplification until that's worth the added complexity.
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*/
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class RootDomain
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{
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public static function of(string $domain): string
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{
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$labels = explode('.', strtolower(trim($domain, '.')));
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if (count($labels) <= 2) {
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return implode('.', $labels);
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}
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return implode('.', array_slice($labels, -2));
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}
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}
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