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<?php |
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namespace Kir\MySQL\Builder\Expr; |
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use Exception; |
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class DBExprFilter implements OptionalExpression { |
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/** @var */ |
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private $expression; |
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/** @var mixed */ |
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private $value; |
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/** @var string[] */ |
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private $keyPath; |
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/** @var callable|null */ |
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private $validator; |
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/** @var null */ |
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private $validationResultHandler; |
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/** |
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* @param string $expression |
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* @param array $data |
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* @param string|string[] $keyPath |
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* @param callable|null $validator |
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* @param callable|null $validationResultHandler |
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* @throws Exception |
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*/ |
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public function __construct($expression, array $data, $keyPath, $validator = null, $validationResultHandler = null) { |
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$this->expression = $expression; |
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$this->value = $data; |
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$this->keyPath = $this->buildKey($keyPath); |
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$this->value = $this->recursiveGet($data, $this->keyPath, null); |
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if($validator === null) { |
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$validator = function ($data) { |
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return (string) $data !== ''; |
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}; |
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} |
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if($validationResultHandler === null) { |
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$validationResultHandler = function ($data) {}; |
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} |
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$this->validator = $validator; |
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$this->validationResultHandler = $validationResultHandler; |
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} |
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/** |
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* @return mixed |
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*/ |
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public function getExpression() { |
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return $this->expression; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isValid() { |
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$result = call_user_func($this->validator, $this->value); |
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call_user_func($this->validationResultHandler, $result, [ |
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'value' => $this->value, |
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'key' => join('.', $this->keyPath), |
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]); |
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return $result; |
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} |
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/** |
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* @return mixed |
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*/ |
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public function getValue() { |
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return [$this->value]; |
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} |
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/** |
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* @param string|string[] $keyPath |
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* @return string |
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* @throws Exception |
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*/ |
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private function buildKey($keyPath) { |
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if(is_string($keyPath)) { |
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$keyPath = explode('.', $keyPath); |
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} |
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if(!is_array($keyPath)) { |
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throw new Exception('Invalid key'); |
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} |
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return $keyPath; |
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} |
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/** |
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* @param array $array |
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* @param array $path |
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* @param mixed $default |
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* @return array |
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*/ |
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private function recursiveGet($array, $path, $default) { |
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$count = count($path); |
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if (!$count) { |
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return $default; |
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} |
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for($idx = 0; $idx < $count; $idx++) { |
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$part = $path[$idx]; |
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if(!array_key_exists($part, $array)) { |
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return $default; |
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} |
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$array = $array[$part]; |
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} |
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return $array; |
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} |
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} |
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rkrx /
php-mysql-query-builder
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.