oliverdavies.uk/content/node.6118c41e-e92e-4865-9f1c-64dd19e2bc40.yml

89 lines
3.6 KiB
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uuid:
- value: 6118c41e-e92e-4865-9f1c-64dd19e2bc40
langcode:
- value: en
type:
- target_id: daily_email
target_type: node_type
target_uuid: 8bde1f2f-eef9-4f2d-ae9c-96921f8193d7
revision_timestamp:
- value: '2025-05-11T09:00:40+00:00'
revision_uid:
- target_type: user
target_uuid: b8966985-d4b2-42a7-a319-2e94ccfbb849
revision_log: { }
status:
- value: true
uid:
- target_type: user
target_uuid: b8966985-d4b2-42a7-a319-2e94ccfbb849
title:
- value: |
What is deprecated code?
created:
- value: '2023-05-17T00:00:00+00:00'
changed:
- value: '2025-05-11T09:00:40+00:00'
promote:
- value: false
sticky:
- value: false
default_langcode:
- value: true
revision_translation_affected:
- value: true
path:
- alias: /daily/2023/05/17/what-is-deprecated-code
langcode: en
body:
- value: |
<p>Deprecating code is a way of identifying code that will be removed in a future major version.</p>
<p>For example, the <code>drupal_set_message()</code> function was deprecated in Drupal 8.5 and removed in Drupal 9 as the <code>messenger</code> service replaced it.</p>
<p>Once it was deprecated, the function was changed to use the new service to avoid duplicating code and a message was added to notify Developers:</p>
<pre><code class="language-php">function drupal_set_message($message = NULL, $type = 'status', $repeat = FALSE) {
@trigger_error('drupal_set_message() is deprecated in Drupal 8.5.0 and will be removed before Drupal 9.0.0. Use \Drupal\Core\Messenger\MessengerInterface::addMessage() instead. See https://www.drupal.org/node/2774931', E_USER_DEPRECATED);
$messenger = \Drupal::messenger();
if (isset($message)) {
$messenger-&gt;addMessage($message, $type, $repeat);
}
return $messenger-&gt;all();
}
</code></pre>
<p>This approach means that code can be refactored without breaking backwards-compatibility and, to upgrade any custom code to be compatible with Drupal 9, any references to <code>drupal_set_message()</code> just needed to be updated to use the new Messenger service.</p>
<p>No large rewrite needed!</p>
format: full_html
processed: |
<p>Deprecating code is a way of identifying code that will be removed in a future major version.</p>
<p>For example, the <code>drupal_set_message()</code> function was deprecated in Drupal 8.5 and removed in Drupal 9 as the <code>messenger</code> service replaced it.</p>
<p>Once it was deprecated, the function was changed to use the new service to avoid duplicating code and a message was added to notify Developers:</p>
<pre><code class="language-php">function drupal_set_message($message = NULL, $type = 'status', $repeat = FALSE) {
@trigger_error('drupal_set_message() is deprecated in Drupal 8.5.0 and will be removed before Drupal 9.0.0. Use \Drupal\Core\Messenger\MessengerInterface::addMessage() instead. See https://www.drupal.org/node/2774931', E_USER_DEPRECATED);
$messenger = \Drupal::messenger();
if (isset($message)) {
$messenger-&gt;addMessage($message, $type, $repeat);
}
return $messenger-&gt;all();
}
</code></pre>
<p>This approach means that code can be refactored without breaking backwards-compatibility and, to upgrade any custom code to be compatible with Drupal 9, any references to <code>drupal_set_message()</code> just needed to be updated to use the new Messenger service.</p>
<p>No large rewrite needed!</p>
summary: null
field_daily_email_cta: { }