social_event_type.module in Open Social 10.3.x

The Social event type module.

File

modules/social_features/social_event/modules/social_event_type/social_event_type.module

<?php

/**
 * @file
 * The Social event type module.
 */
use Drupal\Core\Ajax\AjaxResponse;
use Drupal\Core\Ajax\ReplaceCommand;
use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Link;
use Drupal\Core\Url;
use Drupal\field\Entity\FieldStorageConfig;
use Drupal\node\Entity\Node;

/**
 * Implements hook_form_FORM_ID_alter().
 */
function social_event_type_form_node_event_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  social_event_type_widget_alter($form);
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function social_event_type_form_node_event_edit_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  social_event_type_widget_alter($form);
}

/**
 * Function that does some magic to the event type field.
 *
 * @param array $form
 *   Form array.
 */
function social_event_type_widget_alter(array &$form) {
  $config = \Drupal::config('social_event_type.settings');

  // Check if the field is set to mandatory.
  if ($config
    ->get('social_event_type_required') == TRUE) {
    $form['field_event_type']['widget']['#required'] = TRUE;
  }

  // Set the event type label for none.
  if (isset($form['field_event_type']['widget']['#options']['_none'])) {

    // If the field was set to mandatory, remove the _none option.
    if ($config
      ->get('social_event_type_required') == TRUE) {
      unset($form['field_event_type']['widget']['#options']['_none']);
    }
  }

  // Change the widget if more than X.
  if (count($form['field_event_type']['widget']['#options']) >= $config
    ->get('social_event_type_select_changer')) {
    $form['field_event_type']['widget']['#type'] = 'select';
  }
}

/**
 * Preprocess event node.
 *
 * @param array $variables
 *   Array with variables of a node.
 */
function social_event_type_preprocess_node(array &$variables) {

  /** @var \Drupal\node\Entity\NodeInterface $node */
  $node = $variables['node'];
  if ($node
    ->getType() === 'event') {
    $event_type = $node
      ->get('field_event_type');
    $event_type_entities = $event_type
      ->referencedEntities();
    if (count($event_type_entities) === 1) {

      /** @var \Drupal\node\Entity\Node $event */
      foreach ($event_type_entities as $event) {
        if ($event instanceof Node) {
          $variables['metadata'] = t('in @event', [
            '@event' => $event
              ->toLink()
              ->toString(),
          ]);

          // Set event type link.
          $now = strtotime("now");
          $end = strtotime($node
            ->get('field_event_date_end')
            ->getString());

          // 1 are upcoming events.
          // 2 are ones that have started or are finished.
          $datetype = $now > $end ? 2 : 1;
          $event_type_url = Url::fromRoute('view.upcoming_events.page_community_events', [
            'field_event_date_value' => $datetype,
            'event_type_id' => $event
              ->id(),
          ]);
          $event_type_link = Link::fromTextAndUrl($event
            ->label(), $event_type_url)
            ->toString();
          $variables['event_type'] = $event_type_link;
        }
        if ($event
          ->hasField('field_event_type_icon') && !$event
          ->get('field_event_type_icon')
          ->isEmpty()) {
          $variables['event_type_icon'] = $event
            ->get('field_event_type_icon')->value;
        }
        $variables['#cache']['tags'][] = $event
          ->getEntityTypeId() . ':' . $event
          ->id();
      }
    }
    else {
      $variables['metadata'] = NULL;
      $variables['event_type'] = NULL;
    }
  }
}

/**
 * Sets dynamic allowed values for the event type icon field.
 */
function social_event_type_allowed_values_function(FieldStorageConfig $definition, ContentEntityInterface $entity = NULL, $cacheable) {
  $theme_path = drupal_get_path('theme', 'socialbase');
  $icon_files = \Drupal::service('file_system')
    ->scanDirectory(DRUPAL_ROOT . '/' . $theme_path . '/components/06-libraries/icons/source', '/^icon-.*\\.svg$/', [
    'recurse' => FALSE,
  ]);
  $options = [];
  foreach ($icon_files as $file) {
    $options[$file->name] = $file->name;
  }
  return $options;
}

/**
 * Sets the default value for the event type icon field.
 */
function social_event_type_default_value_function(ContentEntityInterface $entity, FieldDefinitionInterface $definition) {
  return [
    [
      'value' => 'icon-event',
    ],
  ];
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function social_event_type_form_taxonomy_term_event_types_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  if (!isset($form['field_event_type_icon'])) {
    return;
  }
  $form['#attached']['library'][] = 'social_event_type/admin';
  $default_icon = $form['field_event_type_icon']['widget']['#default_value'][0];
  $form['field_event_type_icon']['preview'] = [
    '#type' => 'inline_template',
    '#template' => '<div class="icon-svg-wrapper" data-href="#' . $default_icon . '"><svg class="selected-svg"><use xlink:href="#' . $default_icon . '"></use></svg>{{ svg_icons|raw }}</div>',
    '#context' => [
      'svg_icons' => file_get_contents(drupal_get_path('theme', 'socialbase') . '/assets/icons/icons.svg'),
    ],
  ];
  $form['field_event_type_icon']['widget']['#ajax'] = [
    'callback' => '_social_event_type_change_topic_icon_ajax',
    'event' => 'change',
  ];
}

/**
 * Ajax callback to change event type icon.
 */
function _social_event_type_change_topic_icon_ajax(array $form, FormStateInterface $form_state) {
  $response = new AjaxResponse();
  $icon = $form_state
    ->getValue('field_event_type_icon')[0]['value'];
  $replaced = [
    '#type' => 'inline_template',
    '#template' => '<div class="icon-svg-wrapper" data-href="#' . $icon . '"><svg class="selected-svg"><use xlink:href="#' . $icon . '"></use></svg>{{ svg_icons|raw }}</div>',
    '#context' => [
      'svg_icons' => file_get_contents(drupal_get_path('theme', 'socialbase') . '/assets/icons/icons.svg'),
    ],
  ];
  $response
    ->addCommand(new ReplaceCommand('.icon-svg-wrapper', $replaced));
  return $response;
}

Functions

Name	Description
social_event_type_allowed_values_function	Sets dynamic allowed values for the event type icon field.
social_event_type_default_value_function	Sets the default value for the event type icon field.
social_event_type_form_node_event_edit_form_alter	Implements hook_form_FORM_ID_alter().
social_event_type_form_node_event_form_alter	Implements hook_form_FORM_ID_alter().
social_event_type_form_taxonomy_term_event_types_form_alter	Implements hook_form_FORM_ID_alter().
social_event_type_preprocess_node	Preprocess event node.
social_event_type_widget_alter	Function that does some magic to the event type field.
_social_event_type_change_topic_icon_ajax	Ajax callback to change event type icon.