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<?php |
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/** |
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* Day of week field. Allows: * / , - ? L # |
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* |
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* Days of the week can be represented as a number 0-7 (0|7 = Sunday) |
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* or as a three letter string: SUN, MON, TUE, WED, THU, FRI, SAT. |
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* |
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* 'L' stands for "last". It allows you to specify constructs such as |
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* "the last Friday" of a given month. |
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* |
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* '#' is allowed for the day-of-week field, and must be followed by a |
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* number between one and five. It allows you to specify constructs such as |
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* "the second Friday" of a given month. |
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* |
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* @author Michael Dowling <[email protected]> |
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*/ |
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class CronExpression_DayOfWeekField extends CronExpression_AbstractField |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function isSatisfiedBy(DateTime $date, $value) |
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{ |
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if ($value == '?') { |
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return true; |
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} |
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// Convert text day of the week values to integers |
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$value = str_ireplace( |
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array('SUN', 'MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT'), |
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range(0, 6), |
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$value |
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); |
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$currentYear = $date->format('Y'); |
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$currentMonth = $date->format('m'); |
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$lastDayOfMonth = $date->format('t'); |
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// Find out if this is the last specific weekday of the month |
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if (strpos($value, 'L')) { |
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$weekday = str_replace('7', '0', substr($value, 0, strpos($value, 'L'))); |
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$tdate = clone $date; |
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$tdate->setDate($currentYear, $currentMonth, $lastDayOfMonth); |
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while ($tdate->format('w') != $weekday) { |
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$tdate->setDate($currentYear, $currentMonth, --$lastDayOfMonth); |
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} |
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return $date->format('j') == $lastDayOfMonth; |
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} |
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// Handle # hash tokens |
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if (strpos($value, '#')) { |
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list($weekday, $nth) = explode('#', $value); |
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// Validate the hash fields |
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if ($weekday < 1 || $weekday > 5) { |
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throw new InvalidArgumentException("Weekday must be a value between 1 and 5. {$weekday} given"); |
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} |
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if ($nth > 5) { |
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throw new InvalidArgumentException('There are never more than 5 of a given weekday in a month'); |
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} |
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// The current weekday must match the targeted weekday to proceed |
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if ($date->format('N') != $weekday) { |
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return false; |
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} |
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$tdate = clone $date; |
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$tdate->setDate($currentYear, $currentMonth, 1); |
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$dayCount = 0; |
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$currentDay = 1; |
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while ($currentDay < $lastDayOfMonth + 1) { |
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if ($tdate->format('N') == $weekday) { |
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if (++$dayCount >= $nth) { |
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break; |
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} |
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} |
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$tdate->setDate($currentYear, $currentMonth, ++$currentDay); |
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} |
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return $date->format('j') == $currentDay; |
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} |
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// Handle day of the week values |
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if (strpos($value, '-')) { |
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$parts = explode('-', $value); |
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if ($parts[0] == '7') { |
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$parts[0] = '0'; |
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} elseif ($parts[1] == '0') { |
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$parts[1] = '7'; |
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} |
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$value = implode('-', $parts); |
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} |
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// Test to see which Sunday to use -- 0 == 7 == Sunday |
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$format = in_array(7, str_split($value)) ? 'N' : 'w'; |
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$fieldValue = $date->format($format); |
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return $this->isSatisfied($fieldValue, $value); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function increment(DateTime $date, $invert = false) |
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{ |
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if ($invert) { |
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$date->modify('-1 day'); |
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$date->setTime(23, 59, 0); |
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} else { |
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$date->modify('+1 day'); |
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$date->setTime(0, 0, 0); |
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} |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function validate($value) |
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{ |
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return (bool) preg_match('/[\*,\/\-0-9A-Z]+/', $value); |
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} |
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} |
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AyeCode /
invoicing
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