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<?php |
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/** |
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* Phossa Project |
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* |
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* PHP version 5.4 |
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* |
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* @category Library |
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* @package Phossa2\Query |
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* @copyright Copyright (c) 2016 phossa.com |
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* @license http://mit-license.org/ MIT License |
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* @link http://www.phossa.com/ |
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*/ |
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/*# declare(strict_types=1); */ |
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namespace Phossa2\Query\Traits\Clause; |
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use Phossa2\Query\Interfaces\Clause\LimitInterface; |
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/** |
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* LimitTrait |
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* |
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* Implementation of LimitInterface |
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* |
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* @package Phossa2\Query |
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* @author Hong Zhang <[email protected]> |
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* @see LimitInterface |
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* @version 2.0.0 |
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* @since 2.0.0 added |
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*/ |
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trait LimitTrait |
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{ |
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/** |
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* {@inheritDoc} |
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*/ |
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public function limit(/*# int */ $count, /*# int */ $offset = 0) |
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{ |
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$clause = &$this->getClause('LIMIT'); |
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View Code Duplication |
if ($count || $offset) { |
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if (!empty($clause)) { |
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$clause[0] = (int) $count; |
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} else { |
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$clause = [(int) $count, (int) $offset]; |
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} |
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} |
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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 offset(/*# int */ $offset) |
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{ |
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$clause = &$this->getClause('LIMIT'); |
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View Code Duplication |
if (!empty($clause)) { |
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$clause[1] = (int) $offset; |
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} else { |
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$clause = [-1, (int) $offset]; |
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} |
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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 page(/*# int */ $pageNumber, /*# int */ $perPage = 30) |
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{ |
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$clause = &$this->getClause('LIMIT'); |
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$clause = [(int) $perPage, ($pageNumber - 1) * $perPage]; |
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return $this; |
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} |
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/** |
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* Build LIMIT |
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* |
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* @return array |
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* @access protected |
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*/ |
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protected function buildLimit(array $settings)/*# : string */ |
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{ |
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$result = []; |
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$clause = &$this->getClause('LIMIT'); |
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if (!empty($clause)) { |
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$res = []; |
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if ($clause[0]) { |
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$res[] = 'LIMIT ' . $clause[0]; |
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} |
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if ($clause[1]) { |
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$res[] = 'OFFSET ' . $clause[1]; |
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} |
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$result[] = join(' ', $res); |
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} |
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return $this->joinClause('', ' ', $result, $settings); |
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} |
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abstract protected function &getClause(/*# string */ $clauseName)/*# : array */; |
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abstract protected function joinClause( |
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/*# : string */ $prefix, |
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/*# : string */ $seperator, |
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array $clause, |
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array $settings |
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)/*# : string */; |
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} |
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phossa2 /
query
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.