How can I do set NULL into the table in Doctrine - php

Question

I have some table store_section(id,parent_id,label), I want to change some row, set parent_id=null.
I trying to:
$record = $table->getTable()->find( $id );
$record->parent_id = null;
$record->save();
But this isn't work. How can I do set NULL into the table in Doctrine, in example above, parent_id becomes =0 (not =NULL)?
Thnx for the responses!

Answer 1

I would try one of the following:
1:
$record = $table->getTable()->find( $id );
$record->parent_id = new Doctrine_Null();
$record->save();
2:
$record = $table->getTable()->find( $id );
$record->parent_id = "NULL";
$record->save();
I have not tested these, but I do recall having a similar issue prior, just cannot recall how I solved it. Hope this helps!

Answer 2

You can use method set('u.name', 'NULL')
For example:
Doctrine_Query::create()->update('User u')->set('u.name', 'NULL')->where('u.id = ?',$id);

Answer 3

Doctrine_Null only has two methods, and the one that seems to relate is the __toString method. So in order to activate the magic method you need to cast as a string:
$record = $table->getTable()->find( $id );
$record->parent_id = (string) new Doctrine_Null;
$record->save();
But honestly there is no reason, as Doctrine_Null just abstracts an empty string ''. I can only assume that it only works in this scenario because parent_id is not enforcing a NULL attribute.
Setting a value of 'NULL' appears to work but is actually a string and not NULL.
'NULL' !== null
Give it a shot, if you insert 'NULL' into one row, and another row is a "natural NULL", and you pull both rows out of the table and do a var_dump(serialize()) on each, you will see one is a natural null and other is actually a string.
If you want to maintain consistency and enforce natural nulls, use this instead:
$record = $table->getTable()->find( $id );
$record->parent_id = new Doctrine_Expression('NULL');
$record->save();

Answer 4

in this case, when the field is a relation. I have complished this task with:
$record->Parent = null;
$record->save();
Above Parent is the relation name.

Answer 5

In Doctrine2 Using the query builder, you can also directly update the value in the db.
$qb = // $this->connection->createQueryBuilder(); or $this->em->createQueryBuilder();
$qb->update('store_section', 's')
->set('s.parent_id', ':parent_id')
->andWhere('s.id', ':id'));
$qb->setParameter('parent_id', null);
$qb->setParameter('id', $id);
$qb->execute();

Answer 6

$record->setParentId(null);
$record->save();