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<?php |
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/** |
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* GpsLab component. |
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* |
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* @author Peter Gribanov <[email protected]> |
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* @copyright Copyright (c) 2016, Peter Gribanov |
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* @license http://opensource.org/licenses/MIT |
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*/ |
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namespace GpsLab\Bundle\DateBundle; |
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use GpsLab\Bundle\DateBundle\Exception\InvalidCompareOperatorException; |
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class Comparator |
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{ |
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const EQ = '='; |
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const NEQ = '!='; |
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const LT = '<'; |
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const LTE = '<='; |
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const GT = '>'; |
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const GTE = '>='; |
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/** |
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* Synonym for Comparator::compareDateTime(). |
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* |
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* @param \DateTime $x |
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* @param string $operator |
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* @param \DateTime $y |
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* |
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* @return bool |
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*/ |
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public function compare(\DateTime $x, $operator, \DateTime $y) |
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{ |
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return $this->compareDateTime($x, $operator, $y); |
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} |
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/** |
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* Compare date and time. |
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* |
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* @param \DateTime $x |
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* @param string $operator |
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* @param \DateTime $y |
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* |
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* @return bool |
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*/ |
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public function compareDateTime(\DateTime $x, $operator, \DateTime $y) |
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{ |
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switch ($operator) { |
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case self::EQ: |
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case '==': |
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return $x == $y; |
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case self::NEQ: |
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case '<>': |
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return $x != $y; |
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case self::GT: |
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return $x > $y; |
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case self::GTE: |
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return $x >= $y; |
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case self::LT: |
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return $x < $y; |
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case self::LTE: |
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return $x <= $y; |
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default: |
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throw InvalidCompareOperatorException::create($operator); |
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} |
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} |
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/** |
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* Compare only date. Not compare time. |
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* |
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* @param \DateTime $x |
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* @param string $operator |
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* @param \DateTime $y |
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* |
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* @return bool |
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*/ |
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public function compareDate(\DateTime $x, $operator, \DateTime $y) |
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{ |
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return $this->compareDateTime($this->resetTime($x), $operator, $this->resetTime($y)); |
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} |
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/** |
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* Compare only time. |
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* |
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* @param \DateTime $x |
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* @param string $operator |
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* @param \DateTime $y |
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* |
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* @return bool |
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*/ |
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public function compareTime(\DateTime $x, $operator, \DateTime $y) |
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{ |
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return $this->compareDateTime($this->resetDate($x), $operator, $this->resetDate($y)); |
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} |
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/** |
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* @param \DateTime $x |
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* @param string $operator |
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* @param \DateTime $y |
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* |
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* @return bool |
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*/ |
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public function compareWeek(\DateTime $x, $operator, \DateTime $y) |
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{ |
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return $this->compareDateTime($this->resetWeek($x), $operator, $this->resetWeek($y)); |
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} |
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/** |
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* @param \DateTime $x |
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* @param string $operator |
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* @param \DateTime $y |
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* |
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* @return bool |
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*/ |
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public function compareMonth(\DateTime $x, $operator, \DateTime $y) |
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{ |
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return $this->compareDateTime($this->resetMonth($x), $operator, $this->resetMonth($y)); |
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} |
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/** |
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* @param \DateTime $x |
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* @param string $operator |
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* @param \DateTime $y |
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* |
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* @return bool |
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*/ |
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public function compareYear(\DateTime $x, $operator, \DateTime $y) |
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{ |
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return $this->compareDateTime($this->resetYear($x), $operator, $this->resetYear($y)); |
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} |
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/** |
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* @param \DateTime $date |
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* |
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* @return \DateTime |
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*/ |
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protected function resetTime(\DateTime $date) |
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{ |
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$date = clone $date; |
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$date->setTime(0, 0, 0); |
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return $date; |
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} |
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/** |
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* @param \DateTime $date |
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* |
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* @return \DateTime |
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*/ |
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protected function resetDate(\DateTime $date) |
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{ |
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$date = clone $date; |
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$date->setDate(1, 1, 1); |
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return $date; |
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} |
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/** |
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* @param \DateTime $date |
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* |
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* @return \DateTime |
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*/ |
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protected function resetWeek(\DateTime $date) |
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{ |
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$date = clone $date; |
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$date->modify('Monday this week')->setTime(0, 0, 0); |
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return $date; |
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} |
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/** |
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* @param \DateTime $date |
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* |
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* @return \DateTime |
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*/ |
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protected function resetMonth(\DateTime $date) |
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{ |
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$date = clone $date; |
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$date->modify('first day of this month')->setTime(0, 0, 0); |
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return $date; |
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} |
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/** |
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* @param \DateTime $date |
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* |
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* @return \DateTime |
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*/ |
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protected function resetYear(\DateTime $date) |
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{ |
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$date = clone $date; |
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$date->modify('first day of this year')->setTime(0, 0, 0); |
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return $date; |
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} |
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} |
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