如何在drupal中添加自定义HTML表单

name: Custom Form
type: module
description: Adds a custom HTML form to Drupal.
core_version_requirement: ^8 || ^9
package: Custom
version: 1.0

use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;

/**
 * Implements a custom form.
 */
class CustomForm extends FormBase {

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'custom_form';
  }

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state) {
    $form['name'] = [
      '#type' => 'textfield',
      '#title' => $this->t('Name'),
      '#required' => TRUE,
    ];

    $form['email'] = [
      '#type' => 'email',
      '#title' => $this->t('Email'),
      '#required' => TRUE,
    ];

    $form['submit'] = [
      '#type' => 'submit',
      '#value' => $this->t('Submit'),
    ];

    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    // 处理表单提交的数据
    $name = $form_state->getValue('name');
    $email = $form_state->getValue('email');

    // 在这里执行你的自定义逻辑，例如保存表单数据到数据库

    // 提示用户提交成功
    drupal_set_message($this->t('Form submitted successfully.'));
  }

}

/**
 * Implements hook_block_info().
 */
function custom_form_block_info() {
  $blocks['custom_form'] = [
    'info' => t('Custom Form'),
    'cache' => DRUPAL_NO_CACHE,
  ];

  return $blocks;
}

/**
 * Implements hook_block_view().
 */
function custom_form_block_view($delta = '') {
  $block = [];

  switch ($delta) {
    case 'custom_form':
      $block['content'] = \Drupal::formBuilder()->getForm('Drupal\custom_form\Form\CustomForm');
      break;
  }

  return $block;
}