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<?php |
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/** |
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* @file |
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* Class MinMaxConstraint |
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*/ |
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namespace Roomify\Bat\Constraint; |
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use Roomify\Bat\Constraint; |
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/** |
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* Checks that a request is at least a set number of days and does not exceed a |
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* set number of days. |
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* |
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*/ |
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class MinMaxDaysConstraint extends Constraint { |
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/** |
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* @var int |
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*/ |
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public $min_days = 0; |
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/** |
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* @var int |
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*/ |
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public $max_days = 0; |
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/** |
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* @var int |
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*/ |
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public $checkin_day = NULL; |
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/** |
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* @param $min_days |
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* @param $max_days |
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* @param $start_date |
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* @param $end_date |
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* @param $checkin_day |
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*/ |
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public function __construct($units, $min_days = 0, $max_days = 0, $start_date = NULL, $end_date = NULL, $checkin_day = NULL) { |
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parent::__construct($units); |
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$this->min_days = $min_days; |
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$this->max_days = $max_days; |
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$this->start_date = $start_date; |
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$this->end_date = $end_date; |
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$this->checkin_day = $checkin_day; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function applyConstraint(&$calendar_response) { |
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parent::applyConstraint($calendar_response); |
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if ($this->start_date->getTimestamp() <= $calendar_response->getStartDate()->getTimestamp() && |
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$this->end_date->getTimestamp() >= $calendar_response->getEndDate()->getTimestamp() && |
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($this->checkin_day === NULL || $this->checkin_day == $calendar_response->getStartDate()->format('N'))) { |
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$units = $this->getUnits(); |
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$included_set = $calendar_response->getIncluded(); |
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foreach ($included_set as $unit_id => $set) { |
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if (isset($units[$unit_id]) || empty($units)) { |
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$start_date = $calendar_response->getStartDate(); |
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$end_date = $calendar_response->getEndDate(); |
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$diff = $end_date->diff($start_date)->days; |
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if (is_numeric($this->min_days) && $diff < $this->min_days) { |
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$calendar_response->removeFromMatched($included_set[$unit_id]['unit'], CalendarResponse::CONSTRAINT, $this); |
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$this->affected_units[$unit_id] = $included_set[$unit_id]['unit']; |
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} |
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elseif (is_numeric($this->max_days) && $diff > $this->max_days) { |
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$calendar_response->removeFromMatched($included_set[$unit_id]['unit'], CalendarResponse::CONSTRAINT, $this); |
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$this->affected_units[$unit_id] = $included_set[$unit_id]['unit']; |
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} |
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} |
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} |
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} |
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} |
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/** |
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* Generates a text describing an availability_constraint. |
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* |
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* @return string |
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* The formatted message. |
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*/ |
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public function toString() { |
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$text = ''; |
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// Min/max stay length constraint variables. |
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$minimum_stay = empty($this->min_days) ? '' : format_plural($this->min_days, '@count day', '@count days', array('@count' => $this->min_days)); |
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$maximum_stay = empty($this->max_days) ? '' : format_plural($this->max_days, '@count day', '@count days', array('@count' => $this->max_days)); |
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// Day of the week constraint variable. |
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$day_of_the_week = rooms_availability_constraints_get_weekday($this->checkin_day); |
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// Date range constraint variables. |
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$start_date = $this->start_date->format('Y-m-d'); |
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$end_date = $this->end_date->format('Y-m-d'); |
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// Next create replacement placeholders to be used in t() below. |
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$args = array( |
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'@minimum_stay' => $minimum_stay, |
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'@maximum_stay' => $maximum_stay, |
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'@start_date' => $start_date, |
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'@end_date' => $end_date, |
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'@day_of_the_week' => $day_of_the_week, |
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); |
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// Finally, build out the constraint text string adding components |
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// as necessary. |
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// Specify a date range constraint. |
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if ($start_date && $end_date) { |
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$text = t('From @start_date to @end_date', $args); |
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} |
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// Specify the day of the week constraint. |
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if ($day_of_the_week) { |
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if ($start_date && $end_date) { |
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$text = t('From @start_date to @end_date, if booking starts on @day_of_the_week', $args); |
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} |
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else { |
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$text = t('If booking starts on @day_of_the_week', $args); |
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} |
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} |
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// Specify the min/max stay length constraint. |
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if ($minimum_stay || $maximum_stay) { |
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if (empty($text)) { |
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$text = t('The stay') . ' '; |
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} |
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else { |
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$text .= ' ' . t('the stay') . ' '; |
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} |
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} |
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if ($minimum_stay && $maximum_stay) { |
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// Special case when min stay and max stay are the same. |
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if ($minimum_stay == $maximum_stay) { |
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$text .= t('must be for @minimum_stay', $args); |
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} |
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else { |
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$text .= t('must be at least @minimum_stay and at most @maximum_stay', $args); |
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} |
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} |
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elseif ($minimum_stay) { |
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$text .= t('must be for at least @minimum_stay', $args); |
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} |
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elseif ($maximum_stay) { |
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$text .= t('cannot be more than @maximum_stay', $args); |
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} |
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return $text; |
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} |
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} |
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Roomify /
bat
Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: