Doctrine 2 ManyToOne with multiple joinColumns - mapping

Question

I'm trying to select the matching row in the product_item_sortorder table based on a productId and toolboxItemId from the product_item table.
In normal SQL that would be for a given productId:
SELECT pi.*, pis.* FROM product_item pi
LEFT JOIN product_item_sortorder pis
ON pi.productId = pis.productId
AND pi.toolboxItemId = pis.toolboxItemId
WHERE pi.productId = 6
I wrote the DQL for it as followed:
$this->_em->createQuery(
'SELECT pi
FROM Entities\ProductItem pi
LEFT JOIN pi.sequence s
WHERE pi.product = ?1'
);
Then I get following SQL if I output the $query->getSQL():
SELECT p0_.id AS id0, p0_.productId AS productId1, p0_.priceGroupId AS priceGroupId2, p0_.toolboxItemId AS toolboxItemId3, p0_.levelId AS levelId4, p0_.parentId AS parentId5, p0_.productId AS productId6, p0_.toolboxItemId AS toolboxItemId7 FROM product_item p0_ LEFT JOIN product_item_sortorder p1_ ON p0_.productId = p1_. AND p0_.toolboxItemId = p1_. WHERE p0_.productId = ? ORDER BY p0_.id ASC
As you can see the referencedColumnNames are not found:
LEFT JOIN product_item_sortorder p1_ ON p0_.productId = p1_. AND p0_.toolboxItemId = p1_.
Details of the product_item table:
+-----+-----------+---------------+
| id | productId | toolboxItemId |
+-----+-----------+---------------+
| 467 | 1 | 3 |
| 468 | 1 | 10 |
| 469 | 1 | 20 |
| 470 | 1 | 4 |
| 471 | 1 | 10 |
+-----+-----------+---------------+
Details of the product_item_sortorder table:
+-----+-----------+---------------+----------+
| id | productId | toolboxItemId | sequence |
+-----+-----------+---------------+----------+
| 452 | 1 | 3 | 1 |
| 457 | 1 | 4 | 6 |
| 474 | 1 | 20 | 4 |
+-----+-----------+---------------+----------+
ProductItem Entity
<?php
/**
* #Entity(repositoryClass="Repositories\ProductItem")
* #Table(name="product_item")
*/
class ProductItem
{
...
/**
* #ManyToOne(targetEntity="ProductItemSortorder")
* #JoinColumns({
* #JoinColumn(name="productId", referencedColumnName="productId"),
* #JoinColumn(name="toolboxItemId", referencedColumnName="toolboxItemId")
* })
*/
protected $sequence;
...
?>
ProductItemSortOrder Entity
<?php
/**
* #Entity(repositoryClass="Repositories\ProductItemSortorder")
* #Table(name="product_item_sortorder")
*/
class ProductItemSortorder
{
...
/**
* #ManyToOne(targetEntity="Product")
* #JoinColumn(name="productId", referencedColumnName="id")
*/
protected $product;
/**
* #ManyToOne(targetEntity="ToolboxItem")
* #JoinColumn(name="toolboxItemId", referencedColumnName="id")
*/
protected $toolboxItem;
...
}
?>

Answer 1

Your mappings are seriously wrong. You are using ManyToOne on both ends, how is this possible? You have both associations defined as "owning"-side, no mapped-by or inversed-by (See Association Mappings chapter). And you are using join columns of one association to map to many fields in another entity. I suppose you want to do something else, can you describe exactly your use-case?

Answer 2

How you would map your example in YAML (since #Hernan Rajchert's example is only in annotations):
ProductItem:
type: entity
manyToOne:
sequence:
targetEntity: ProductItemSortorder
joinColumns:
productId:
referencedColumnName: productId
toolboxItemId:
referencedColumnName: toolboxItemId