File: phptricksORM/Relation/RelationProvider.php

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File: phptricksORM/Relation/RelationProvider.php
Role: Class source
Content type: text/plain
Description: Class source
Class: PHP PDO database class
Access databases using PDO
Author: By
Last change:
Date: 3 months ago
Size: 3,270 bytes
 

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<?php
/**
 * *
 * * please don't remove this comment block
 * *
 * * @author phptricks Team - Mohammad Anzawi
 * * @author_uri https://phptricks.org
 * * @uri https://github.com/anzawi/php-database-class
 * * @version 5.0.0
 * * @licence MIT -> https://opensource.org/licenses/MIT
 * * @package PHPtricks\Orm
 *
 */

namespace PHPtricks\Orm\Relation;

use
PHPtricks\Orm\Collection\Collection;
use
PHPtricks\Orm\Model;

/**
 * Trait RelationProvider
 * @since Version 5.0.0
 *
 * @package PHPtricks\Orm\Relation
 */
trait RelationProvider
{

   
/**
     * @var
     */
   
private $_relationModel;
   
/**
     * @var
     */
   
private $_relationWithModel;

   
/**
     * @var
     */
   
private $_joinType = '';

   
/**
     * @var
     */
   
private $_allowedTyps = ['LEFT', 'RIGHT'];

   
/**
     * @param Model $model
     *
     * @return $this
     */
   
protected function make(Model $model)
    {
       
$this->_relationModel = $model;

        return
$this;
    }

   
/**
     * @param string $model
     *
     * @return $this
     */
   
protected function relatedWith(string $model) : RelationProvider
   
{
       
// create new object from model
       
$this->_relationWithModel = new $model();

        return
$this;
    }


    protected function
join(string $type = '') : RelationProvider
   
{
       
// empty $type main cross join
       
$this->_joinType = strtoupper($type);
        if( !
in_array($type, $this->_allowedTyps) ) {
           
$this->_joinType = "";
        }

        return
$this;
    }

    protected function
outer()
    {
       
$this->_joinType .= ' OUTER';
    }

   
/**
     * @param string $foreignId
     * @param string|null $id
     *
     * @return PHPtricks\Orm\Collection\Collection
     */
   
protected function on(string $foreignId, string $id = null) : Collection
   
{
        if (
$id === null) {
           
$id = $this->_relationModel->id();
        }

       
$stmt = "SELECT * FROM {$this->_relationWithModel->table()} as main
                   
{$this->_joinType} JOIN {$this->_relationModel->table()} as other
                    ON(main.
{$id} = other.{$foreignId}){$this->getQueryAdditions()}";

        return
$this->collection([
           
'results' => $this->query($stmt)->results(),
           
'table' => null,
           
'id' => null,
        ]);
    }

    protected function
fullOuterJoinOn(string $foreignId, string $id = null) : Collection
   
{
        if (
$id === null) {
           
$id = $this->_relationModel->id();
        }

       
$stmt = "SELECT * FROM {$this->_relationWithModel->table()} as main
                    LEFT OUTER JOIN
{$this->_relationModel->table()} as other
                    ON(main.
{$id} = other.{$foreignId}){$this->getQueryAdditions()}
                   
                    UNION

                    SELECT * FROM
{$this->_relationWithModel->table()} as main
                    RIGHT OUTER JOIN
{$this->_relationModel->table()} as other
                    ON(main.
{$id} = other.{$foreignId}){$this->getQueryAdditions()}
                    "
;

        return
$this->collection([
           
'results' => $this->query($stmt)->results(),
           
'table' => null,
           
'id' => null,
        ]);
    }

}


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