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<?php |
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/* |
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* This file is part of CalendR, a Fréquence web project. |
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* |
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* (c) 2012 Fréquence web |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace CalendR\Period; |
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use CalendR\Event\EventInterface; |
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/** |
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* An abstract class that represent a date period and provide some base helpers. |
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* |
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* @author Yohan Giarelli <[email protected]> |
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*/ |
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abstract class PeriodAbstract implements PeriodInterface |
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{ |
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/** |
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* @var \DateTime |
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*/ |
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protected $begin; |
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/** |
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* @var \DateTime |
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*/ |
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protected $end; |
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/** |
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* @var FactoryInterface |
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*/ |
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protected $factory; |
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/** |
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* @param \DateTime $begin |
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* @param FactoryInterface $factory |
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* |
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* @throws \CalendR\Exception |
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*/ |
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public function __construct(\DateTime $begin, FactoryInterface $factory) |
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{ |
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$this->factory = $factory; |
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if (!static::isValid($begin)) { |
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throw $this->createInvalidException(); |
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} |
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$this->begin = clone $begin; |
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$this->end = clone $begin; |
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$this->end->add($this->getDateInterval()); |
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} |
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/** |
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* Checks if the given period is contained in the current period. |
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* |
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* @param \DateTime $date |
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* |
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* @return bool true if the period contains this date |
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*/ |
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public function contains(\DateTime $date) |
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{ |
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return $this->begin <= $date && $date < $this->end; |
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} |
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/** |
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* Checks if a period is equals to an other. |
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* |
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* @param PeriodInterface $period |
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* |
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* @return bool |
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*/ |
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public function equals(PeriodInterface $period) |
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{ |
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return |
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$period instanceof static && |
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$this->begin->format('Y-m-d-H-i-s') === $period->getBegin()->format('Y-m-d-H-i-s') |
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; |
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} |
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/** |
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* Returns true if the period include the other period |
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* given as argument. |
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* |
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* @param PeriodInterface $period |
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* @param bool $strict |
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* |
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* @return bool |
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*/ |
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public function includes(PeriodInterface $period, $strict = true) |
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{ |
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if (true === $strict) { |
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return $this->getBegin() <= $period->getBegin() && $this->getEnd() >= $period->getEnd(); |
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} |
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return |
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$this->includes($period, true) || |
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$period->includes($this, true) || |
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$this->contains($period->getBegin()) || |
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$this->contains($period->getEnd()) |
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; |
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} |
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/** |
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* Returns if $event is during this period. |
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* Non strict. Must return true if : |
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* * Event is during period |
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* * Period is during event |
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* * Event begin is during Period |
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* * Event end is during Period. |
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* |
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* @param EventInterface $event |
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* |
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* @return bool |
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*/ |
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public function containsEvent(EventInterface $event) |
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{ |
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return |
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$event->containsPeriod($this) || |
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$event->isDuring($this) || |
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$this->contains($event->getBegin()) || |
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$this->contains($event->getEnd()) |
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; |
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} |
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/** |
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* Format the period to a string. |
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* |
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* @param string $format |
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* |
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* @return string |
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*/ |
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public function format($format) |
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{ |
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return $this->begin->format($format); |
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} |
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/** |
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* Returns if the current period is the current one. |
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* |
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* @return bool |
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*/ |
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public function isCurrent() |
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{ |
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return $this->contains(new \DateTime()); |
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} |
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/** |
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* Gets the next period of the same type. |
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* |
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* @return PeriodInterface |
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*/ |
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public function getNext() |
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{ |
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return new static($this->end, $this->factory); |
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} |
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/** |
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* Gets the previous period of the same type. |
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* |
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* @return PeriodInterface |
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*/ |
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public function getPrevious() |
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{ |
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$start = clone $this->begin; |
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$start->sub(static::getDateInterval()); |
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return new static($start, $this->factory); |
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} |
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/** |
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* @return \DateTime |
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*/ |
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public function getBegin() |
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{ |
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return clone $this->begin; |
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} |
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/** |
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* @return \DateTime |
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*/ |
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public function getEnd() |
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{ |
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return clone $this->end; |
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} |
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/** |
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* @return FactoryInterface |
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*/ |
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public function getFactory() |
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{ |
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if (null === $this->factory) { |
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$this->factory = new Factory(); |
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} |
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return $this->factory; |
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} |
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/** |
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* @return \CalendR\Exception |
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*/ |
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protected function createInvalidException() |
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{ |
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$class = 'CalendR\Period\Exception\NotA' . (new \ReflectionClass($this))->getShortName(); |
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return new $class; |
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} |
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} |
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