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<?php |
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/** |
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* This file is part of UnderQuery package. |
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* |
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* Copyright (c) 2016 Beniamin Jonatan Šimko |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Phuria\UnderQuery\QueryCompiler; |
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use Phuria\UnderQuery\Language\Expression\RelativeClause; |
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use Phuria\UnderQuery\QueryBuilder\AbstractBuilder; |
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use Phuria\UnderQuery\QueryBuilder\BuilderInterface; |
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use Phuria\UnderQuery\Table\AbstractTable; |
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/** |
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* @author Beniamin Jonatan Šimko <[email protected]> |
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*/ |
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class ReferenceCompiler |
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{ |
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/** |
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* @param CompilerPayload $payload |
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* |
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* @return CompilerPayload |
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*/ |
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public function compileReference(CompilerPayload $payload) |
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{ |
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$builder = $payload->getBuilder(); |
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$references = []; |
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if ($builder instanceof AbstractBuilder) { |
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$references = $builder->getReferences()->toArray(); |
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} |
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$actualSQL = $this->compile($payload->getActualSQL(), $references); |
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return $payload->updateSQL($actualSQL); |
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} |
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/** |
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* @param string $rawSQL |
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* @param array $references |
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* |
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* @return string |
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*/ |
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public function compile($rawSQL, array $references) |
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{ |
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foreach ($references as &$value) { |
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$value = $this->convertReferenceToValue($value); |
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} |
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return str_replace(array_keys($references), array_values($references), $rawSQL); |
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} |
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/** |
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* @param $reference |
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* |
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* @return string |
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*/ |
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private function convertReferenceToValue($reference) |
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{ |
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if (is_scalar($reference)) { |
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return $this->convertScalarReference($reference); |
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} else { |
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return $this->convertObjectReference($reference); |
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} |
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} |
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/** |
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* @param $reference |
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* |
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* @return string |
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*/ |
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private function convertScalarReference($reference) |
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{ |
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if (is_string($reference)) { |
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return "\"" . $reference ."\""; |
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} |
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return $reference; |
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} |
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/** |
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* @param mixed $reference |
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* |
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* @return string |
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*/ |
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private function convertObjectReference($reference) |
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{ |
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if ($reference instanceof AbstractTable) { |
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return $reference->getAliasOrName(); |
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} elseif ($reference instanceof BuilderInterface) { |
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return $reference->buildSQL(); |
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} elseif ($reference instanceof RelativeClause) { |
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$table = $this->convertObjectReference($reference->getRelatedTable()); |
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$clause = $this->convertObjectReference($reference->getClause()); |
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return str_replace($reference->getDirective(), $table . '.', $clause); |
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} |
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return $reference; |
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} |
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} |
phuria /
under-query
