function flag_form_save in Flag 8.4

Performs flagging/unflagging for the entity edit form.

Parameters

\Drupal\Core\Entity\EntityInterface $entity: The entity being saved.

$values: The flag entity form values.

See also

flag_form_submit()

1 call to flag_form_save()

flag_form_submit in ./flag.module

Form submission handler for the flag module.

File

./flag.module, line 214

The Flag module.

Code

function flag_form_save(EntityInterface $entity, $values) {
  $flag_service = \Drupal::service('flag');
  $account = \Drupal::currentUser();

  // For existing entities, get any existing flaggings per flag.
  $flagging_ids = [];
  if (!$entity
    ->isNew()) {
    $flaggings = $flag_service
      ->getAllEntityFlaggings($entity, $account);
    $flagging_ids = array_map(function ($flagging) {
      return $flagging
        ->getFlagId();
    }, $flaggings);
  }

  // Load all the flags for the entity.
  $flags = $flag_service
    ->getAllFlags($entity
    ->getEntityTypeId(), $entity
    ->bundle());

  /** @var FlagInterface $flag */
  foreach ($flags as $flag) {

    // Get the flag_id from the Flag.
    $flag_id = $flag
      ->id();

    // If the flag_id is not part of the form values, no need to do anything.
    if (!isset($values[$flag_id])) {
      continue;
    }

    // Get the form flag value.
    $value = $values[$flag_id];

    // Determine if the flagging exists.
    $flagging_exists = in_array($flag_id, $flagging_ids);

    // If the flag is checked in the form, and the flagging doesn't exist...
    if ($value && !$flagging_exists) {

      // ...flag the entity.
      $flag_service
        ->flag($flag, $entity);
    }

    // If the flag is not checked in the form, and the flagging exists..
    if (!$value && $flagging_exists) {

      // ...unflag the entity.
      $flag_service
        ->unflag($flag, $entity);
    }
  }
}