Qpdb\QueryBuilder\Traits\Distinct

Complexity

Total Complexity

7

Size/Duplication

Total Lines	52
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	getDistinctSyntax()	0	13	4
A	distinct()	0	5	1
A	distinctRow()	0	5	1
A	all()	0	5	1

<?php
/**
 * Created by PhpStorm.
 * User: Adrian Dumitru
 * Date: 7/28/2017
 * Time: 8:04 AM
 */

namespace Qpdb\QueryBuilder\Traits;


use Qpdb\QueryBuilder\Dependencies\QueryException;
use Qpdb\QueryBuilder\Dependencies\QueryStructure;

/**
 * Trait Distinct
 * @package Qpdb\QueryBuilder\Traits
 * @property  QueryStructure $queryStructure
 */
trait Distinct
{

	/**
	 * @return $this
	 * @throws QueryException
	 */
	public function all()
	{
		$this->queryStructure->setElement( QueryStructure::DISTINCT, 0 );

		return $this;
	}

	/**
	 * @return $this
	 */
	public function distinct()
	{
		$this->queryStructure->setElement( QueryStructure::DISTINCT, 1 );

		return $this;
	}

	/**
	 * @return $this
	 */
	public function distinctRow()
	{
		$this->queryStructure->setElement( QueryStructure::DISTINCT, 2 );

		return $this;
	}


	/**
	 * @return string
	 * @throws QueryException
	 */
	private function getDistinctSyntax()
	{
		$useDistinct = $this->queryStructure->getElement( QueryStructure::DISTINCT );

		switch ( $useDistinct ) {
			case 0:
				return '';
			case 1:
				return 'DISTINCT';
			case 2:
				return 'DISTINCTROW';
			default:
				throw new QueryException( 'Invalid distinct type', QueryException::QUERY_ERROR_INVALID_DISTINCT );
		}

	}


}