DkanDataSettingsForm.php

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<?php
 
namespace Drupal\dkan_data\Form;
 
use Drupal\Core\Form\ConfigFormBase;
use Drupal\Core\Form\FormStateInterface;
 
class DkanDataSettingsForm extends ConfigFormBase {
 
  protected function getEditableConfigNames() {
    return [
      'dkan_data.settings',
    ];
  }
 
  public function getFormId() {
    return 'dkan_data_settings_form';
  }
 
  public function buildForm(array $form, FormStateInterface $form_state) {
    $config = $this->config('dkan_data.settings');
    $options = $this->retrieveSchemaProperties();
    $default_values = $config->get('property_list');
    $form['property_list'] = [
      '#type' => 'checkboxes',
      '#title' => $this->t('List of dataset properties with referencing and API endpoint'),
      '#options' => $options,
      '#default_value' => $default_values,
    ];
    return parent::buildForm($form, $form_state);
  }
 
  public function retrieveSchemaProperties() : array {
    // Create a json object from our schema.
    $schemaRetriever = \Drupal::service('dkan_schema.schema_retriever');
    $schema = $schemaRetriever->retrieve('dataset');
    $schema_object = json_decode($schema);
 
    // Build a list of the schema properties' title and description.
    $property_list = [];
    foreach ($schema_object->properties as $property_id => $property_object) {
      if (isset($property_object->title)) {
        $property_list[$property_id] = "{$property_object->title} ({$property_id})";
      }
      else {
        $property_list[$property_id] = ucfirst($property_id);
      }
    }
 
    return $property_list;
  }
 
  public function submitForm(array &$form, FormStateInterface $form_state) {
    parent::submitForm($form, $form_state);
 
    $this->config('dkan_data.settings')
      ->set('property_list', $form_state->getValue('property_list'))
      ->save();
 
    // Rebuild routes, without clearing all caches.
    \Drupal::service("router.builder")->rebuild();
  }
 
}