public function RlHelper::generateOccurrences in Recurring Dates Field 3.x

Same name and namespace in other branches

1. 8.2 src/Rl/RlHelper.php \Drupal\date_recur\Rl\RlHelper::generateOccurrences()
2. 3.0.x src/Rl/RlHelper.php \Drupal\date_recur\Rl\RlHelper::generateOccurrences()
3. 3.1.x src/Rl/RlHelper.php \Drupal\date_recur\Rl\RlHelper::generateOccurrences()

Calculates occurrences as a generator.

Parameters

\DateTimeInterface|null $rangeStart: The start of the range, or start with the first available occurrence.

\DateTimeInterface|null $rangeEnd: The end of the range, or never end.

Return value

\Generator|\Drupal\date_recur\DateRange[] A date range generator.

Overrides DateRecurHelperInterface::generateOccurrences

1 call to RlHelper::generateOccurrences()

RlHelper::getOccurrences in src/Rl/RlHelper.php

Get all occurrences.

File

src/Rl/RlHelper.php, line 152

Class

RlHelper

Helper for recurring rules implemented with rlanvin/rrule.

Namespace

Drupal\date_recur\Rl

Code

public function generateOccurrences(?\DateTimeInterface $rangeStart = NULL, ?\DateTimeInterface $rangeEnd = NULL) : \Generator {
  foreach ($this->set as $occurrenceStart) {

    /** @var \DateTime $occurrence */
    $occurrenceEnd = clone $occurrenceStart;
    $occurrenceEnd
      ->add($this->recurDiff);
    if ($rangeStart) {
      if ($occurrenceStart < $rangeStart && $occurrenceEnd < $rangeStart) {
        continue;
      }
    }
    if ($rangeEnd) {
      if ($occurrenceStart > $rangeEnd && $occurrenceEnd > $rangeEnd) {
        break;
      }
    }
    (yield new DateRange($occurrenceStart, $occurrenceEnd));
  }
}