updated form orm chapter to beta1

Author: carlossg00

book/doctrine/orm.rst

@@ -546,34 +546,24 @@ types such as strings, integers and fields. However you can also integrate
 them nicely with associations.
 
 This is done by the help of a dedicated field:
-:class:`Symfony\\Component\\Form\\EntityChoiceField`. It provides a list of
+:class:`Symfony\\Brigde\Doctrine\Form\Type\EntityType`. It provides a list of
 choices from which an entity can be selected.
 
 .. code-block:: php
 
  use Symfony\Component\Form\EntityChoiceField;
 
- $field = new EntityChoiceField('users', array(
- 'em' => $em,
- 'class' => 'Acme\\HelloBundle\\Entity\\User',
- 'property' => 'username',
- 'query_builder' => $qb,
+ $builder->add('users','entity',
+ array('class' => 'Acme\\HelloBundle\\Entity\\User',
  ));
 
- $form->addField($field);
-
-The 'em' option expects the EntityManager, the 'class' option expects the Entity
-class name as an argument. The optional 'property' option allows you to choose
-the property used to display the entity (``__toString`` will be used if not
-set). The optional 'query_builder' option expects a ``QueryBuilder`` instance or
+The required 'class' option expects the Entity class name as an argument.
+The optional 'property' option allows you to choose the property used to 
+display the entity (``__toString`` will be used if not set). 
+The optional 'query_builder' option expects a ``QueryBuilder`` instance or
 a closure receiving the repository as an argument and returning the QueryBuilder
 used to get the choices. If not set all entities will be used.
 
-.. tip::
-
- ``EntityChoiceField`` extends :class:`Symfony\\Component\\Form\\ChoiceField`
- so you can also give the array of choices with the 'choices' option instead
- of using a QueryBuilder.
 
 .. _documentation: http://www.doctrine-project.org/docs/orm/2.0/en
 .. _Doctrine: http://www.doctrine-project.org