关于 drupal-form-alter
面向 Drupal 开发者的表单修改参考,涵盖 Drupal 10.3+ 和 11 的面向对象 Hook 写法。示例说明如何调整字段属性,以及从表单状态获取表单对象和实体。
主要功能
- 01使用面向对象 Hook
- 02设置字段必填状态
- 03添加字段默认值
- 04隐藏表单字段
- 05获取表单对象和实体
适用场景
- 01修改字段校验要求
- 02为字段预填默认值
- 03按需隐藏内部字段
安装
复制下面的命令,在终端中运行。
$
npx skills add https:/ / github.com/ edutrul/ drupal-ai --skill drupal-form-alter安装后在 Claude Code 中输入/drupal-form-alter确认已加载。
附带文件README.md
README 原文English
来自项目 READMEREADME 暂无中文译文,以下为英文原文;中文介绍见上方。
Drupal Form Alter
OOP Hook (Drupal 10.3+ / 11)
// src/Hook/MyModuleHooks.php
namespace Drupal\my_module\Hook;
use Drupal\Core\Hook\Attribute\Hook;
use Drupal\Core\Form\FormStateInterface;
final class MyModuleHooks {
#[Hook('form_alter')]
public function formAlter(array &$form, FormStateInterface $form_state, string $form_id): void {
if ($form_id === 'node_article_form' || $form_id === 'node_article_edit_form') {
// Alter the article node form.
$form['title']['#description'] = t('Enter a descriptive title.');
}
}
// Target a specific form more efficiently
#[Hook('form_node_article_form_alter')]
public function formNodeArticleFormAlter(array &$form, FormStateInterface $form_state): void {
$form['#validate'][] = [MyModuleHooks::class, 'validateArticleForm'];
$form['actions']['submit']['#submit'][] = [MyModuleHooks::class, 'submitArticleForm'];
}
}
Common Alterations
// Make a field required
$form['field_subtitle']['widget'][0]['value']['#required'] = TRUE;
// Add a field default value
$form['field_subtitle']['widget'][0]['value']['#default_value'] = 'Default';
// Hide a field
$form['field_internal']['#access'] = FALSE;
// Add a CSS class
$form['#attributes']['class'][] = 'my-custom-form';
// Change submit button label
$form['actions']['submit']['#value'] = t('Save Article');
// Add a custom submit handler (runs AFTER default)
$form['actions']['submit']['#submit'][] = '::mySubmitHandler';
// Prepend a custom validate handler
array_unshift($form['#validate'], '::myValidateHandler');
Get Form Object
$form_object = $form_state->getFormObject();
if ($form_object instanceof NodeForm) {
$node = $form_object->getEntity();
}
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