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107 lines
3.2 KiB
PHP
107 lines
3.2 KiB
PHP
<?php
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/**
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* Zend Framework (http://framework.zend.com/)
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*
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* @link http://github.com/zendframework/zf2 for the canonical source repository
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* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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namespace Zend\Stdlib\Hydrator\Strategy;
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use Zend\Stdlib\Exception\InvalidArgumentException;
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/**
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* This Strategy extracts and hydrates int and string values to Boolean values
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*
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* @package Zend\Stdlib\Hydrator\Strategy
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*/
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final class BooleanStrategy implements StrategyInterface
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{
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/**
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* @var int|string
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*/
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private $trueValue;
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/**
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* @var int|string
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*/
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private $falseValue;
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/**
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* @param int|string $trueValue
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* @param int|string $falseValue
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* @throws InvalidArgumentException
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*/
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public function __construct($trueValue, $falseValue)
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{
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if (!is_int($trueValue) && !is_string($trueValue)) {
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throw new InvalidArgumentException(sprintf(
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'Unable to instantiate BooleanStrategy. Expected int or string as $trueValue. %s was given',
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is_object($trueValue) ? get_class($trueValue) : gettype($trueValue)
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));
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}
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if (!is_int($falseValue) && !is_string($falseValue)) {
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throw new InvalidArgumentException(sprintf(
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'Unable to instantiate BooleanStrategy. Expected int or string as $falseValue. %s was given',
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is_object($falseValue) ? get_class($falseValue) : gettype($falseValue)
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));
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}
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$this->trueValue = $trueValue;
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$this->falseValue = $falseValue;
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}
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/**
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* Converts the given value so that it can be extracted by the hydrator.
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*
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* @param bool $value The original value.
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* @throws InvalidArgumentException
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* @return int|string Returns the value that should be extracted.
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*/
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public function extract($value)
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{
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if (!is_bool($value)) {
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throw new InvalidArgumentException(sprintf(
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'Unable to extract. Expected bool. %s was given.',
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is_object($value) ? get_class($value) : gettype($value)
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));
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}
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return $value === true ? $this->trueValue : $this->falseValue;
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}
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/**
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* Converts the given value so that it can be hydrated by the hydrator.
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*
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* @param int|string $value The original value.
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* @throws InvalidArgumentException
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* @return bool Returns the value that should be hydrated.
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*/
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public function hydrate($value)
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{
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if (!is_string($value) && !is_int($value)) {
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throw new InvalidArgumentException(sprintf(
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'Unable to hydrate. Expected string or int. %s was given.',
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is_object($value) ? get_class($value) : gettype($value)
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));
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}
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if ($value === $this->trueValue) {
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return true;
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}
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if ($value === $this->falseValue) {
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return false;
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}
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throw new InvalidArgumentException(sprintf(
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'Unexpected value %s can\'t be hydrated. Expect %s or %s as Value.',
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$value,
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$this->trueValue,
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$this->falseValue
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));
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}
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}
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