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<?php |
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/** |
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* This file is part of Phuria SQL Builder 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\QueryBuilder\Expression; |
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/** |
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* @author Beniamin Jonatan Šimko <[email protected]> |
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*/ |
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class ExpressionCollection implements ExpressionInterface, \ArrayAccess |
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{ |
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/** |
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* @var ExpressionInterface[] $expressionList |
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*/ |
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private $expressionList; |
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/** |
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* @var string $separator |
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*/ |
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private $separator; |
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/** |
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* @param array $expressionList |
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* @param string $separator |
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*/ |
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public function __construct(array $expressionList = [], $separator = '') |
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{ |
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$this->expressionList = $expressionList; |
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$this->separator = $separator; |
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} |
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/** |
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* @return ExpressionInterface[] |
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*/ |
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public function getExpressionList() |
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{ |
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return $this->expressionList; |
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} |
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/** |
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* @param string $separator |
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* |
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* @return ExpressionCollection |
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*/ |
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public function changeSeparator($separator) |
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{ |
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return new self($this->expressionList, $separator); |
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} |
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/** |
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* @param ExpressionInterface $expression |
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* |
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* @return $this |
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*/ |
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public function addElement(ExpressionInterface $expression) |
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{ |
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$this->expressionList[] = $expression; |
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return $this; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function compile() |
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{ |
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$elements = []; |
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foreach ($this->expressionList as $expression) { |
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$elements[] = $expression->compile(); |
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} |
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return implode($this->separator, $elements); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isEmpty() |
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{ |
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return empty($this->expressionList); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function offsetExists($offset) |
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{ |
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return array_key_exists($offset, $this->expressionList); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function offsetGet($offset) |
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{ |
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return $this->expressionList[$offset]; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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$this->expressionList[$offset] = $value; |
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return $value; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function offsetUnset($offset) |
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{ |
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unset($this->expressionList[$offset]); |
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} |
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} |
phuria /
under-query
