Problem when I make a INNER JOIN between 2 classes

This is what returns for me:

object(stdClass)[82]
  public '__CLASS__' => string 'ItemPregao' (length=10)
  public 'id' => int 1
  public 'item' => string '1' (length=1)

The expected result I guess. What happens for you?

Ok...this is what happen for me...
but I think the expected result would be

object(stdClass)[82]
  public '__CLASS__' => string 'ItemPregao' (length=10)
  public 'id' => int 1
  public 'item' => string 'Item' (length=4)

because 'public item' makes refereces to Item class, so I think it should give me a Item class, not its Id...

When I try to make a inner join between Item and ItemPregao, happens what I've said before, but if I make a inner join between Item and its refereces tables, it's working fine

$qb = $this->em->createQueryBuilder();
        $qb->select('i, cc, ca, cl')
           ->from('Item', 'i')
           ->innerJoin('i.classificacaoCatalogo', 'cc')
           ->innerJoin('cc.catalogo', 'ca')
           ->innerJoin('cc.classificacao', 'cl')
        ;

object(stdClass)[141]
  public '__CLASS__' => string 'Item' (length=4)
  public 'id' => int 1
  public 'descricao' => string 'ITEM 1' (length=6)
  public 'classificacaoCatalogo' => 
    object(stdClass)[99]
      public '__CLASS__' => string 'ClassificacaoCatalogo' (length=21)
      public 'id' => int 1
      public 'classificacao' => string 'Classificacao' (length=13)
      public 'catalogo' => string 'Catalogo' (length=8)

It brings a class on 'classificacaoCatalogo' and inside classificacaoCatalogo you can see that 'classificacao' and 'catalogo' are objects too..so it worked! But If I make this:

$qb = $this->em->createQueryBuilder();
        $qb->select('ip, i')
           ->from('ItemPregao', 'ip')
           ->innerJoin('ip.item', 'i');

do not work like before..

object(stdClass)[152]
  public '__CLASS__' => string 'ItemPregao' (length=10)
  public 'id' => int 1
  public 'item' => int 1

'item' should be a object, not a integer..

Ah now I see it. Yes, this seems to be a problem.

I have taken some time now trying to re-produce it, there is definately a bug i have identified, however i havent found the reason yet.

ok man!
I've try to find the reason too but I havent found yet too...
I dont know if there's something about the item are conected to a table that there're 2 table...
i dont know :S

I found the issue. A quick fix is to rename the join column to "item_id" instead of "item". This is causing the bug, we will look how to fix it.

@Roman:

This is particularly nasty, in UnitOfWork::createEntity the join column is set to the field name in $data, which makes the following code write the primitive FK value to the entity:

            if ($this->_useCExtension) {
                doctrine_populate_data($entity, $data);
            } else {
                foreach ($data as $field => $value) {
                    if (isset($class->reflFields[$field])) {
                        $class->reflFields[$field]->setValue($entity, $value);
                    }
                }
            }

This then leads in the ObjectHydrator to:

                    // PATH B: Single-valued association
                    $reflFieldValue = $reflField->getValue($parentObject);
                    if ( ! $reflFieldValue || isset($this->_hints[Query::HINT_REFRESH])) {

not evaluating to null, but to the primitive value. the If condition does not match here and the relation is never set.

A simple solution would be to replace !$reflFieldValue with !is_object().

Attached a reproduce test-case.

I see. As their is an easy workaround, this is not a blocker, however.

DDC-522 needs to be fixed, then this issue is solved, too (its the same after all, the other issue is just more specific).

Scheduled for beta2

Should be fixed now in master.