MerciMaxLengthConstraintValidator.php in MERCI (Manage Equipment Reservations, Checkout and Inventory) 8.2

Contains \Drupal\merci\Plugin\Validation\Constraint\MerciMaxLengthConstraintValidator.

Namespace

Drupal\merci\Plugin\Validation\Constraint

File

src/Plugin/Validation/Constraint/MerciMaxLengthConstraintValidator.php

<?php

/**
 * @file
 * Contains \Drupal\merci\Plugin\Validation\Constraint\MerciMaxLengthConstraintValidator.
 */
namespace Drupal\merci\Plugin\Validation\Constraint;

use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Drupal\Core\Datetime\Entity\DateFormat;
use Drupal\Core\Datetime\DrupalDateTime;

/**
 * Checks for conflicts when validating a entity with reservable items.
 */
class MerciMaxLengthConstraintValidator extends ConstraintValidator {

  /**
   * {@inheritdoc}
   */
  public function validate($value, Constraint $constraint) {

    /* @var \Drupal\Core\Field\FieldItemInterface $value */
    if (!isset($value)) {
      return;
    }
    $id = $value->target_id;

    // '0' or NULL are considered valid empty references.
    if (empty($id)) {
      return;
    }
    $datetime_start = clone $value
      ->getEntity()->{$constraint->date_field}
      ->first()->start_date;
    $datetime_end = $value
      ->getEntity()->{$constraint->date_field}
      ->first()->end_date;
    if ($constraint->grouping_field) {
      $entity = $value->entity->{$constraint->grouping_field}
        ->first()->entity;
    }
    else {
      $entity = $value->entity;
    }
    $interval = $entity->{$constraint->interval_field}
      ->first();
    if ($interval == NULL) {
      return;
    }
    $interval_spec = "P";
    if (in_array($interval->period, array(
      'hour',
      'minute',
      'second',
    ))) {
      $interval_spec .= 'T';
    }
    $interval_spec .= $interval->interval;
    $interval_map = array(
      'second' => 'S',
      'minute' => 'M',
      'hour' => 'H',
      'week' => 'W',
      'day' => 'D',
      'month' => 'M',
      'year' => 'Y',
    );
    $interval_spec .= $interval_map[$interval->period];
    $datetime_start
      ->add(new \DateInterval($interval_spec));
    if ($datetime_start < $datetime_end) {
      $this->context
        ->addViolation($constraint->message, array(
        '@interval' => $interval->interval,
        '@period' => $interval->period,
      ));
    }
  }

}

Classes

Name	Description
MerciMaxLengthConstraintValidator	Checks for conflicts when validating a entity with reservable items.