Optimize loop structure in hook_node_grants()
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #3573240. -->
Reported by: [ezeedub](https://www.drupal.org/user/633844)
Related to !11
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p><code>node_view_permissions_node_grants()</code> has several loop inefficiencies that compound on multilingual sites with many content types:</p>
<ol>
<li><strong><code>NodeType::loadMultiple()</code> called inside the language loop.</strong> With 8 languages, all content type entities are loaded 8 times instead of once.</li>
<li><strong><code>hasPermission()</code> called redundantly per language.</strong> Permission results depend on the user's roles, not the language. With 8 languages and 17 types, this means ~540 redundant permission checks per invocation.</li>
<li><strong>Language-independent grants set inside the language loop.</strong> Grants like <code>view_any_{type}_content</code> are identical across languages but are redundantly assigned on every language iteration.</li>
<li><strong>Unused variables.</strong> <code>$node = \Drupal::routeMatch()-&gt;getParameter('node')</code> and <code>$language_manager</code> are assigned but never used.</li>
</ol>
<p>Related: <a href="https://www.drupal.org/project/node_view_permissions/issues/3571280">#3571280</a> proposes removing language-specific grants entirely. This issue takes a less invasive approach — keeping the same grant output but restructuring the loops to avoid redundant work.</p>
<h4 id="summary-steps-reproduce">Steps to reproduce</h4>
<ol>
<li>Install <code>node_view_permissions</code> on a multilingual site (e.g., 8 languages, 17+ content types).</li>
<li>Profile <code>node_view_permissions_node_grants()</code> with Xdebug/Blackfire.</li>
<li>Observe <code>NodeType::loadMultiple()</code> called once per language, and <code>hasPermission()</code> called 4× per language/type combination instead of 4× per type.</li>
</ol>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<p>Restructure the loops so that:</p>
<ul>
<li><code>NodeType::loadMultiple()</code> is called once, before any loop.</li>
<li><code>hasPermission()</code> results are computed once per content type (outer loop), then reused in the language loop (inner loop).</li>
<li>Language-independent grants are set in the outer loop, language-specific grants in the inner loop.</li>
<li>Unused variables are removed.</li>
</ul>
<pre><pre>$result = [];<br>if ($op == 'view') {<br> $languages = \Drupal::languageManager()-&gt;getLanguages();<br> $node_types = NodeType::loadMultiple();<br> foreach ($node_types as $type) {<br> $type_id = $type-&gt;id();<br> $view_any = $account-&gt;hasPermission("view any $type_id content");<br> $view_own = $account-&gt;hasPermission("view own $type_id content");<br> $view_any_unpublished = $account-&gt;hasPermission("view any unpublished content");<br> $view_own_unpublished = $account-&gt;hasPermission("view own unpublished content");<br><br> // Language-independent grants (set once per type).<br> if ($view_any) {<br> $result["view_any_{$type_id}_content"] = [1];<br> }<br> if ($view_own) {<br> $result["view_own_{$type_id}_content"] = [$account-&gt;id()];<br> }<br> if ($view_any_unpublished &amp;&amp; $view_any) {<br> $result["view_any_unpublished_{$type_id}_content"] = [1];<br> }<br> if ($view_own_unpublished &amp;&amp; $view_own) {<br> $result["view_own_unpublished_{$type_id}_content"] = [$account-&gt;id()];<br> }<br><br> // Language-specific grants (reuse cached permission results).<br> foreach ($languages as $langcode =&gt; $language) {<br> if ($view_any) {<br> $result["view_any_{$type_id}_{$langcode}_content"] = [1];<br> }<br> if ($view_own) {<br> $result["view_own_{$type_id}_{$langcode}_content"] = [$account-&gt;id()];<br> }<br> if ($view_any_unpublished &amp;&amp; $view_any) {<br> $result["view_any_unpublished_{$type_id}_{$langcode}_content"] = [1];<br> }<br> if ($view_own_unpublished &amp;&amp; $view_own) {<br> $result["view_own_unpublished_{$type_id}_{$langcode}_content"] = [$account-&gt;id()];<br> }<br> }<br> }<br>}</pre></pre><p>The output is identical — same grants, same keys, same values. Only the execution path changes.</p>
<h3 id="summary-remaining-tasks">Remaining tasks</h3>
<ul>
<li>Review and test the patch.</li>
<li>Verify grant output is byte-identical before and after.</li>
</ul>
issue
GitLab AI Context
Project: project/node_view_permissions
Instance: https://git.drupalcode.org
Repository: https://git.drupalcode.org/project/node_view_permissions
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- GitLab CLI (glab): create branches and open merge requests from the terminal. https://gitlab.com/api/v4/projects/34675721/repository/files/README.md/raw?ref=HEAD