public function AppointmentCalendarForm::validateForm in Appointment Calendar 8

Form validation handler.

Parameters

array $form: An associative array containing the structure of the form.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Overrides FormBase::validateForm

File

src/Form/AppointmentCalendarForm.php, line 101

Class

AppointmentCalendarForm

Namespace

Drupal\appointment_calendar\Form

Code

public function validateForm(array &$form, FormStateInterface $form_state) {
  $values = $form_state
    ->getValues();
  $db_conn = \Drupal::database();
  $op = (string) $values['op'];
  if ($op == $this
    ->t('Reset')) {
    $form_state
      ->setRedirect('appointment_calendar.subscribers');
  }
  if ($op == $this
    ->t('Submit')) {
    $start_date = $values['appointment_from_date']
      ->getTimestamp();
    $end_date = $values['appointment_to_date']
      ->getTimestamp();

    // Getting all dates in between Start and End Dates.
    $dates = appointment_calendar_daysbetween($start_date, $end_date);
    $check_count = 0;

    // Checking for already filled slots.
    foreach ($dates as $each_date) {
      $date_check = $db_conn
        ->select('appointment_date', 'ad');
      $date_check
        ->fields('ad', [
        'date',
      ]);
      $date_check
        ->condition('date', $each_date, '=');
      $date_result = $date_check
        ->execute()
        ->fetchField();
      if (!empty($date_result)) {
        $check_count++;
        $date = date('Y-m-d', $each_date);
        $this
          ->messenger()
          ->addError($date . ' Already filled');
      }
    }
    if ($check_count > 0) {
      $form_state
        ->setErrorByName('appointment_from_date', t('Verify and try adding again'));
    }

    // Date Validation.
    if ($start_date > $end_date) {
      $form_state
        ->setErrorByName('appointment_to_date', t('End Date Should be greater than Start Date'));
    }
    if ($start_date < strtotime(date('Y-m-d', time()))) {
      $form_state
        ->setErrorByName('appointment_start_date', t('Start Date Should be greater than Today(s) Date'));
    }
    $slots = $values['appointment_slot'];

    // Time slot and Capacity Validation.
    $time_slots_check = [];
    for ($i = 1; $i <= $slots; $i++) {
      $time_slot = $values['time_slot_' . $i];
      $time_capacity = $values['time_slot_' . $i . '_capacity'];
      $regex = '/^(?:[01][0-9]|2[0-3]):[0-5][0-9]-(?:[01][0-9]|2[0-3]):[0-5][0-9]$/';

      // Timeslot.
      if (!preg_match($regex, $time_slot)) {
        $form_state
          ->setErrorByName('time_slot_' . $i, t('Time slot format should be 00:00-00:00 (in between 24 hrs).'));
      }

      // Slot Capacity.
      if ($time_capacity < 0) {
        $form_state
          ->setErrorByName('time_slot_' . $i . '_capacity', t('Slot Capacity should be greater than 0.'));
      }

      // Timeslot Check.
      if (empty($time_capacity)) {
        $form_state
          ->setErrorByName('time_slot_' . $i . '_capacity', t('Fill time slot capacity.'));
      }

      // Checking duplicate slots.
      $time_slots_check[] = $time_slot;
      $vals = array_count_values($time_slots_check);
      if ($vals[$time_slot] > 1) {
        $form_state
          ->setErrorByName('time_slot_' . $i, t('Time slot cannot redeclare twice or more.'));
      }
    }
  }
}