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<?php |
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namespace Andegna\Operations; |
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use Andegna\Converter\ToJdnConverter; |
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use Andegna\DateTime; |
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use DateInterval; |
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use DateTimeZone; |
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/** |
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* Processor trait <br /> |
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* works on dateTime property. |
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*/ |
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trait Processor |
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{ |
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/** |
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* @param mixed $dateTime |
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* |
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* @return mixed |
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*/ |
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protected function fixForChaining($dateTime = false) |
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{ |
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if ($dateTime === false) { |
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return $dateTime; |
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} |
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$this->updateComputedFields(); |
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return $this; |
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} |
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/** |
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* Adds an amount of days, months, years, hours, minutes and seconds to a DateTime object. |
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* |
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* @param DateInterval $interval |
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* |
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* @return DateTime|bool |
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*/ |
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public function add(DateInterval $interval) |
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{ |
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return $this->fixForChaining($this->dateTime->add($interval)); |
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} |
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/** |
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* Subtracts an amount of days, months, years, hours, minutes and seconds from a DateTime object. |
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* |
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* @param DateInterval $interval |
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* |
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* @return DateTime|bool |
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*/ |
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public function sub(DateInterval $interval) |
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{ |
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return$this->fixForChaining($this->dateTime->sub($interval)); |
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} |
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/** |
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* Alters the timestamp. |
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* |
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* @param $modify |
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* |
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* @return DateTime|bool |
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*/ |
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public function modify($modify) |
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{ |
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return $this->fixForChaining($this->dateTime->modify($modify)); |
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} |
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/** |
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* Returns the difference between two DateTime objects. |
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* |
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* @param $datetime |
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* @param bool $absolute |
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* |
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* @return DateInterval |
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*/ |
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public function diff($datetime, $absolute = false) |
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{ |
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if ($datetime instanceof DateTime) { |
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return $this->dateTime->diff($datetime->toGregorian(), $absolute); |
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} |
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return $this->dateTime->diff($datetime, $absolute); |
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} |
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/** |
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* Sets the date. |
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* |
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* @param $year |
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* @param $month |
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* @param $day |
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* |
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* @return DateTime |
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*/ |
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public function setDate($year, $month, $day) |
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{ |
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$jdn = (new ToJdnConverter($day, $month, $year))->getJdn(); |
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$gregorian = jdtogregorian($jdn); |
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list($month, $day, $year) = explode('/', $gregorian); |
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$this->fixForChaining($this->dateTime->setDate((int) $year, (int) $month, (int) $day)); |
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} |
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/** |
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* Sets the time. |
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* |
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* @param $hour |
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* @param $minute |
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* @param int $second |
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* |
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* @return DateTime |
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*/ |
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public function setTime($hour, $minute, $second = 0) |
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{ |
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return $this->fixForChaining($this->dateTime->setTime($hour, $minute, $second)); |
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} |
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/** |
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* Sets the date and time based on an Unix timestamp. |
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* |
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* @param $unixtimestamp |
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* |
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* @return DateTime |
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*/ |
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public function setTimestamp($unixtimestamp) |
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{ |
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return $this->fixForChaining($this->dateTime->setTimestamp($unixtimestamp)); |
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} |
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/** |
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* Sets the time zone for the DateTime object. |
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* |
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* @param $timezone |
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* |
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* @return DateTime |
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*/ |
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public function setTimezone($timezone) |
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{ |
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return $this->fixForChaining($this->dateTime->setTimezone($timezone)); |
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} |
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/** |
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* Returns the timezone offset. |
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* |
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* @return int |
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*/ |
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public function getOffset() |
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{ |
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return $this->dateTime->getOffset(); |
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} |
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/** |
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* Return time zone relative to given DateTime. |
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* |
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* @return DateTimeZone |
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*/ |
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public function getTimezone() |
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{ |
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return $this->dateTime->getTimezone(); |
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} |
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/** |
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* The __wakeup handler. |
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*/ |
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public function __wakeup() |
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{ |
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return $this->dateTime->__wakeup(); |
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} |
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} |
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This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idable
provides a methodequalsId
that in turn relies on the methodgetId()
. If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()
as an abstract method to the trait will make sure it is available.