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<?php |
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namespace Knp\FriendlyContexts\Guesser; |
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class DecimalGuesser extends AbstractGuesser implements GuesserInterface |
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{ |
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public function supports(array $mapping) |
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{ |
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$mapping = array_merge([ 'type' => null ], $mapping); |
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return in_array($mapping['type'], [ 'decimal', 'float' ]); |
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} |
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public function transform($str, array $mapping = null) |
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{ |
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return (float) $str; |
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} |
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public function fake(array $mapping) |
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{ |
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$maxNumOfDecimals = $this->determineMaxNumOfDecimals($mapping); |
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$min = 0; |
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$max = $this->determineMaxValue($mapping); |
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return current($this->fakers)->fake('randomFloat', [$maxNumOfDecimals, $min, $max]); |
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} |
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/** |
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* @param array $mapping |
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* |
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* @return int|null |
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*/ |
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private function determineMaxNumOfDecimals(array $mapping) |
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{ |
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if (isset($mapping['scale'])) { |
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return $mapping['scale']; |
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} |
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if (isset($mapping['precision'])) { |
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return 0; |
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} |
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return null; |
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} |
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/** |
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* @param array $mapping |
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* |
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* @return float|null |
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*/ |
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private function determineMaxValue(array $mapping) |
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{ |
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if (!isset($mapping['precision']) && !isset($mapping['scale'])) { |
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return null; |
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} |
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$scale = isset($mapping['scale']) ? (int)$mapping['scale'] : 0; |
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$precision = isset($mapping['precision']) ? (int)$mapping['precision'] : 0; |
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if ($precision < $scale) { |
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$precision = $scale; |
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} |
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$maxValueStr = (int)str_repeat('9', $precision); |
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$integerPartLength = $precision - $scale; |
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$fractionalPart = substr($maxValueStr, 0, $integerPartLength); |
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$integerPart = substr($maxValueStr, $integerPartLength); |
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$maxValue = (float)"$fractionalPart.$integerPart"; |
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return $maxValue; |
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} |
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public function getName() |
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{ |
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return 'decimal'; |
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} |
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} |
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guy-fawkes /
FriendlyContexts
