public static function DatexDateList::datexDatetimeRangeYears in Datex 8

4 calls to DatexDateList::datexDatetimeRangeYears()

DatexDateList::datetimeRangeYears in src/Element/DatexDateList.php

Specifies the start and end year to use as a date range.

DatexDateList::processDatelist in src/Element/DatexDateList.php

Expands a date element into an array of individual elements.

DatexDateTime::processDatetime in src/Element/DatexDateTime.php

Expands a datetime element type into date and/or time elements.

DatexDateTime::xProcessDatetime in src/Element/DatexDateTime.php

File

src/Element/DatexDateList.php, line 252

Class

DatexDateList

Plugin annotation @FormElement("datelist");

Namespace

Drupal\datex\Element

Code

public static function datexDatetimeRangeYears($string, $date, $calendar_name = '') {
  if ($calendar_name === 'gregorian') {
    return parent::datetimeRangeYears($string, $date);
  }
  $calendar = datex_factory(NULL, 'en', $calendar_name);
  if (!$calendar) {
    return parent::datetimeRangeYears($string, $date);
  }
  $datetime = new DatexDrupalDateTime();
  $this_year = $calendar
    ->format('Y', [
    'langcode' => 'en',
  ]);
  list($min_year, $max_year) = explode(':', $string);

  // Valid patterns would be -5:+5, 0:+1, 2008:2010.
  $plus_pattern = '@[\\+|\\-][0-9]{1,4}@';
  $year_pattern = '@^[0-9]{4}@';
  if (!preg_match($year_pattern, $min_year, $matches)) {
    if (preg_match($plus_pattern, $min_year, $matches)) {
      $min_year = $this_year + $matches[0];
    }
    else {
      $min_year = $this_year;
    }
  }
  else {
    try {
      $calendar
        ->xSetDate($min_year, 1, 1);
      $min_year = $calendar
        ->format('Y');
    } catch (\Exception $e) {
      $min_year = 0;
    }
  }
  if (!preg_match($year_pattern, $max_year, $matches)) {
    if (preg_match($plus_pattern, $max_year, $matches)) {
      $max_year = $this_year + $matches[0];
    }
    else {
      $max_year = $this_year;
    }
  }
  else {
    try {
      $calendar
        ->xSetDate($max_year, 1, 1);
      $max_year = $calendar
        ->format('Y');
    } catch (\Exception $e) {
      $max_year = 0;
    }
  }
  $min_year = intval($min_year);
  $max_year = intval($max_year);

  // We expect the $min year to be less than the $max year. Some custom values
  // for -99:+99 might not obey that.
  if ($min_year > $max_year) {
    $temp = $max_year;
    $max_year = $min_year;
    $min_year = $temp;
  }

  // If there is a current value, stretch the range to include it.
  if ($date instanceof DrupalDateTime) {
    $calendar
      ->setTimestamp($date
      ->getTimestamp());
    $value_year = $calendar
      ->format('Y');
  }
  else {
    $value_year = '';
  }
  if (!empty($value_year)) {
    $min_year = min(intval($value_year), $min_year);
    $max_year = max(intval($value_year), $max_year);
  }
  return [
    $min_year,
    $max_year,
  ];
}