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<?php |
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namespace Kaliop\eZLoremIpsumBundle\Faker; |
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use Faker\Generator; |
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/** |
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* Proxy for other generators, to return only a limited amount of distinct values. Works with |
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* Faker\Generator\Base->unique() |
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*/ |
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class MaxDistinctGenerator |
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{ |
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protected $generator; |
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protected $maxElements; |
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protected $maxTries = 10000; |
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protected $uniques = array(); |
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/** |
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* @param Generator $generator |
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* @param integer $maxElements |
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*/ |
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public function __construct(Generator $generator, $maxElements = 100) |
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{ |
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$this->generator = $generator; |
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$this->maxElements = $maxElements; |
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} |
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/** |
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* Catch and proxy all generator calls but return only unique values |
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* @param string $attribute |
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* @return mixed |
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*/ |
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public function __get($attribute) |
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{ |
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return $this->__call($attribute, array()); |
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} |
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/** |
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* Catch and proxy all generator calls with arguments and return only up to maxElements unique values. |
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* NB: does *not* guarantee that all returned values are unique - combine it with a `unique()` modifier for that. |
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* |
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* @param string $name |
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* @param array $arguments |
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* @return mixed |
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*/ |
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public function __call($name, $arguments) |
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{ |
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if (!isset($this->uniques[$name])) { |
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$this->uniques[$name] = array(); |
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} |
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if (count($this->uniques[$name]) >= $this->maxElements) { |
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return unserialize($this->uniques[$name][mt_rand(0, count($this->uniques[$name]) - 1)]); |
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} |
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$res = call_user_func_array(array($this->generator, $name), $arguments); |
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$sres = serialize($res); |
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if (!in_array($sres, $this->uniques[$name])) { |
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$this->uniques[$name][] = $sres; |
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} |
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return $res; |
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} |
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} |
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kaliop-uk /
ezloremipsumbundle
