PHP code example of amazeelabs / silverback_gutenberg

1. Go to this page and download the library: Download amazeelabs/silverback_gutenberg library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

amazeelabs / silverback_gutenberg example snippets




namespace Drupal\custom_gutenberg\Plugin\Validation\GutenbergValidator;

use Drupal\silverback_gutenberg\GutenbergValidation\GutenbergValidatorBase;
use Drupal\Core\StringTranslation\StringTranslationTrait;

/**
 * @GutenbergValidator(
 *   id="my_block_validator",
 *   label = @Translation("My block validator")
 * )
 */
class MyBlockValidator extends GutenbergValidatorBase {

  use StringTranslationTrait;

  /**
   * {@inheritDoc}
   */
  public function applies(array $block) {
    return $block['blockName'] === 'custom/my-block';
  }

  /**
   * {@inheritDoc}
   */
  public function validatedFields(array $block = []) {
    return [
      'email' => [
        'field_label' => $this->t('Email'),
        'rules' => ['

public function validateContent(array $block) {
  $isValid = TRUE;

  // Custom validation logic.
  // (...)

  if (!$isValid) {
    return [
      'is_valid' => FALSE,
      'message' => 'Message',
    ];
  }

  // Passes validation.
  return [
    'is_valid' => TRUE,
    'message' => '',
  ];
}


use GutenbergCardinalityValidatorTrait;


public function validateContent(array $block) {
  $expectedChildren = [
    [
      'blockName' => 'custom/teaser',
      'blockLabel' => $this->t('Teaser'),
      'min' => 1,
      'max' => 2,
    ],
  ];
  return $this->validateCardinality($block, $expectedChildren);
}


public function validateContent(array $block) {
  $expectedChildren = [
    'validationType' => GutenbergCardinalityValidatorInterface::CARDINALITY_ANY,
    'min' => 0,
    'max' => 1,
  ];
  return $this->validateCardinality($block, $expectedChildren);
}


public function validateContent(array $block) {
  $expectedChildren = [
    [
      'blockName' => 'custom/teaser',
      'blockLabel' => $this->t('Teaser'),
      'min' => 1,
      'max' => GutenbergCardinalityValidatorInterface::CARDINALITY_UNLIMITED,
    ],
  ];
  return $this->validateCardinality($block, $expectedChildren);
}