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<?php |
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namespace Zee\DateRange\States; |
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use DateTimeInterface; |
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/** |
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* Date range abstract state. |
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*/ |
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abstract class RangeState |
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{ |
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/** |
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* @return bool |
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*/ |
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public function hasStartDate(): bool |
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{ |
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return false; |
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} |
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/** |
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* @return bool |
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*/ |
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public function hasEndDate(): bool |
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{ |
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return false; |
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} |
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/** |
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* @return DateTimeInterface |
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*/ |
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abstract public function getStartDate(): DateTimeInterface; |
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/** |
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* @return DateTimeInterface |
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*/ |
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abstract public function getEndDate(): DateTimeInterface; |
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/** |
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* @param DateTimeInterface $start |
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* |
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* @return RangeState |
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*/ |
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abstract public function setStartDate(DateTimeInterface $start): RangeState; |
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/** |
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* @param DateTimeInterface $end |
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* |
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* @return RangeState |
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*/ |
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abstract public function setEndDate(DateTimeInterface $end): RangeState; |
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/** |
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* Compares start date with specific date. |
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* |
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* Returns 0 if dates are equals, negative if start date is less than given date, |
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* and positive if start date is greater. |
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* |
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* @param DateTimeInterface $date |
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* |
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* @return int |
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*/ |
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public function compareStartDate(DateTimeInterface $date): int |
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{ |
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return $this->getStartDate()->getTimestamp() <=> $date->getTimestamp(); |
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} |
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/** |
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* Compares end date with specific date. |
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* |
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* Returns 0 if dates are equals, negative if end date is less than given date |
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* and positive if end date is greater. |
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* |
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* @param DateTimeInterface $date |
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* |
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* @return int |
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*/ |
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public function compareEndDate(DateTimeInterface $date): int |
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{ |
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return $this->getEndDate()->getTimestamp() <=> $date->getTimestamp(); |
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} |
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/** |
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* @param string $format |
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* |
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* @return null|string |
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*/ |
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public function formatStartDate(string $format = 'c'): ?string |
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{ |
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return $this->getStartDate()->format($format); |
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} |
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/** |
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* @param string $format |
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* |
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* @return null|string |
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*/ |
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public function formatEndDate(string $format = 'c'): ?string |
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{ |
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return $this->getEndDate()->format($format); |
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} |
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} |
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zee /
date-range
