Refresh plugin manager when installing submodules
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #3212538. -->
Reported by: [jurgenhaas](https://www.drupal.org/user/168924)
>>>
<p>When installing a submodule separately to the main module, then a cache refresh might be required before the plugin manager recognizes the newly installed plugin(s).</p>
<p>This has been highlighted by @rkoller over in <span class="drupalorg-gitlab-issue-link drupalorg-gitlab-link-wrapper"><a href="https://git.drupalcode.org/project/danse/-/work_items/3211689" class="drupalorg-gitlab-link">https://git.drupalcode.org/project/danse/-/work_items/3211689</a></span> and a follow-up discussion on <a href="https://drupal.slack.com/archives/C1BB308HH/p1620217954368200">Slack</a> has helped to identify some sort of "best practice". Different installation methods (through UI, drush or by config import) are handling this topic differently and in order to be on the safe side it seems best to implement an install hook like this:</p>
<div class="codeblock">
<pre><span style="color: #000000"><span style="color: #0000BB"><?php<br> $manager </span><span style="color: #007700">= \</span><span style="color: #0000BB">Drupal</span><span style="color: #007700">::</span><span style="color: #0000BB">service</span><span style="color: #007700">(</span><span style="color: #DD0000">'danse.plugin.manager'</span><span style="color: #007700">);<br> </span><span style="color: #0000BB">$manager</span><span style="color: #007700">-></span><span style="color: #0000BB">clearCachedDefinitions</span><span style="color: #007700">();<br><br> </span><span style="color: #0000BB">$manager </span><span style="color: #007700">= \</span><span style="color: #0000BB">Drupal</span><span style="color: #007700">::</span><span style="color: #0000BB">service</span><span style="color: #007700">(</span><span style="color: #DD0000">'danse.recipient.selection.manager'</span><span style="color: #007700">);<br> </span><span style="color: #0000BB">$manager</span><span style="color: #007700">-></span><span style="color: #0000BB">clearCachedDefinitions</span><span style="color: #007700">();<br></span><span style="color: #0000BB">?></span></span></pre></div>
issue
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Project: project/danse
Instance: https://git.drupalcode.org
Repository: https://git.drupalcode.org/project/danse
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