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06 · Language-neutral content ("und") counts as a template language – Summit is installed in "und" and every page fails
Project Drupal CMS (drupal_cms_installer)
Component Installer
Category Bug report
Priority Critical
Status Reported upstream as #3591482

Problem/Motivation

SiteTemplate::getLangcodesFromContent() collects the default_langcode of all default content, including und (not specified) from language-neutral content. Summit ships 53 entities in en and 3 in und. With two "languages" the template is considered multilingual, and detectDefaultLangcode() takes the first match (und) as default language. Because the language chosen in the installer is not among [en, und], the site is set up with system.site:default_langcode: und (and config_language_lock.locked_langcode: und).

The Event Horizon theme then fails on every page:

ValueError: NumberFormatter::__construct(): Argument #1 ($locale) "und" is invalid

In English this goes unnoticed, because en is among the detected languages.

Steps to reproduce

  1. Install Drupal CMS 2.2 in German (or any language other than English).
  2. Choose the Summit site template.
  3. Every page returns 500 (NumberFormatter error); drush cget system.site default_langcode shows und.

Proposed resolution

Ignore und (LanguageInterface::LANGCODE_NOT_SPECIFIED) and zxx (LANGCODE_NOT_APPLICABLE) in both getLangcodesFromContent() and detectDefaultLangcode().

Remaining tasks

Patch + test.

Additional information

Workaround in the German Drupal CMS installer (patch_site_template_language_detection()). The Event Horizon theme should additionally not crash on an invalid locale (separate issue).

Copy to drupal.org

Issue title:

Language-neutral content ("und") counts as a template language – Summit is installed in "und" and every page fails

Issue summary (paste it into the "Issue summary" field; project, component, category and priority are in the table above):

<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p><code>SiteTemplate::getLangcodesFromContent()</code> collects the <code>default_langcode</code> of all default content, including <code>und</code> (not specified) from language-neutral content. Summit ships 53 entities in <code>en</code> and 3 in <code>und</code>. With two "languages" the template is considered multilingual, and <code>detectDefaultLangcode()</code> takes the <strong>first</strong> match (<code>und</code>) as default language. Because the language chosen in the installer is not among <code>[en, und]</code>, the site is set up with <code>system.site:default_langcode: und</code> (and <code>config_language_lock.locked_langcode: und</code>).</p>
<p>The Event Horizon theme then fails on every page:</p>
<code>ValueError: NumberFormatter::__construct(): Argument #1 ($locale) "und" is invalid</code>
<p>In English this goes unnoticed, because <code>en</code> is among the detected languages.</p>
<h3 id="summary-steps-reproduce">Steps to reproduce</h3>
<ol>
<li>Install Drupal CMS 2.2 in German (or any language other than English).</li>
<li>Choose the Summit site template.</li>
<li>Every page returns 500 (NumberFormatter error); <code>drush cget system.site default_langcode</code> shows <code>und</code>.</li>
</ol>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<p>Ignore <code>und</code> (<code>LanguageInterface::LANGCODE_NOT_SPECIFIED</code>) and <code>zxx</code> (<code>LANGCODE_NOT_APPLICABLE</code>) in both <code>getLangcodesFromContent()</code> and <code>detectDefaultLangcode()</code>.</p>
<h3 id="summary-remaining-tasks">Remaining tasks</h3>
<p>Patch + test.</p>
<h3>Additional information</h3>
<p>Workaround in the German Drupal CMS installer (<code>patch_site_template_language_detection()</code>). The Event Horizon theme should additionally not crash on an invalid locale (separate issue).</p>