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<?php |
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namespace PPP\Wikidata\ValueFormatters; |
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use DataValues\TimeValue; |
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use InvalidArgumentException; |
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use ValueFormatters\ValueFormatterBase; |
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/** |
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* @licence AGPLv3+ |
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* @author Thomas Pellissier Tanon |
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* @todo Move to data-value/Time |
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*/ |
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class IsoTimeFormatter extends ValueFormatterBase { |
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/** |
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* @see ValueFormatter::format |
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*/ |
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public function format($value) { |
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if(!($value instanceof TimeValue)) { |
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throw new InvalidArgumentException('DataValue is not a TimeValue.'); |
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} |
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return $this->simplifyIsoTime($value); |
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} |
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private function simplifyIsoTime(TimeValue $value) { |
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$parts = $this->explodeISOTime($value->getTime()); |
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$precision = $value->getPrecision(); |
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$iso = ''; |
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if($parts['year'] < 0) { |
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$iso .= '-' . $this->toStringOfSize(-1 * $parts['year'], 4); |
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} else { |
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$iso .= $this->toStringOfSize($parts['year'], 4); |
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} |
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//Month |
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if($precision < TimeValue::PRECISION_MONTH) { |
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return $iso; |
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} |
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$iso .= '-' . $this->toStringOfSize($parts['month'], 2); |
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//Day |
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if($precision < TimeValue::PRECISION_DAY) { |
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return $iso; |
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} |
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$iso .= '-' . $this->toStringOfSize($parts['day'], 2); |
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//Hours |
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if($precision < TimeValue::PRECISION_HOUR) { |
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return $iso; |
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} |
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$iso .= 'T' . $this->toStringOfSize($parts['hour'], 2); |
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//Minutes |
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if($precision < TimeValue::PRECISION_MINUTE) { |
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return $iso . $this->timezoneToIso($value->getTimezone()); |
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} |
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$iso .= ':' . $this->toStringOfSize($parts['minute'], 2); |
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//Seconds |
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if($precision < TimeValue::PRECISION_SECOND) { |
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return $iso . $this->timezoneToIso($value->getTimezone()); |
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} |
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$iso .= ':' . $this->toStringOfSize($parts['second'], 2); |
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return $iso . $this->timezoneToIso($value->getTimezone()); |
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} |
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private function toStringOfSize($number, $size) { |
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return str_pad((int) $number, $size, '0', STR_PAD_LEFT); |
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} |
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private function timezoneToIso($timezone) { |
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if($timezone === 0) { |
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return 'Z'; |
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} elseif($timezone > 0) { |
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return '+' . $this->toStringOfSize($timezone / 60, 2) . ':' . $this->toStringOfSize($timezone % 60, 2); |
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} else { |
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return '-' . $this->toStringOfSize((-1 * $timezone) / 60, 2) . ':' . $this->toStringOfSize((-1 * $timezone) % 60, 2); |
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} |
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} |
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private function explodeISOTime($time) { |
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if(!preg_match('/([+-]\d+)-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})Z/', $time, $m)) { |
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throw new InvalidArgumentException('$time is not a valid time'); |
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} |
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return array( |
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'year' => intval($m[1]), |
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'month' => intval($m[2]), |
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'day' => intval($m[3]), |
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'hour' => intval($m[4]), |
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'minute' => intval($m[5]), |
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'second' => intval($m[6]) |
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); |
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} |
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} |
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ProjetPP /
PPP-Wikidata
