Feb 12, 2016
diff --git a/book/forms.rst b/book/forms.rst
 form building code into separate classes. When using an external form class
 in the controller, you can pass the action and method as form options::

    use AppBundle\Form\Type\TaskType;
    use AppBundle\Form\TaskType;
    // ...

    $form = $this->createForm(TaskType::class, $task, array(
 class, which can then be reused anywhere in your application. Create a new class
 that will house the logic for building the task form::

    // src/AppBundle/Form/Type/TaskType.php
    namespace AppBundle\Form\Type;
    // src/AppBundle/Form/TaskType.php
    namespace AppBundle\Form;

    use Symfony\Component\Form\AbstractType;
    use Symfony\Component\Form\FormBuilderInterface;
 be used to quickly build a form object in the controller::

    // src/AppBundle/Controller/DefaultController.php
    use AppBundle\Form\Type\TaskType;
    use AppBundle\Form\TaskType;

    public function newAction()
    {
 You might want to use a service defined as ``app.my_service`` in your form
 type. Create a constructor to your form type to receive the service::

    // src/AppBundle/Form/Type/TaskType.php
    namespace AppBundle\Form\Type;
    // src/AppBundle/Form/TaskType.php
    namespace AppBundle\Form;

    use App\Utility\MyService;
    use Symfony\Component\Form\AbstractType;
        # src/AppBundle/Resources/config/services.yml
        services:
            app.form.type.task:
                class: AppBundle\Form\Type\TaskType
                class: AppBundle\Form\TaskType
                arguments: ["@app.my_service"]
                tags:
                    - { name: form.type }
            xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">

            <services>
                <service id="app.form.type.task" class="AppBundle\Form\Type\TaskType">
                <service id="app.form.type.task" class="AppBundle\Form\TaskType">
                    <tag name="form.type" />
                    <argument type="service" id="app.my_service"></argument>
                </service>
        // src/AppBundle/Resources/config/services.php
        use Symfony\Component\DependencyInjection\Reference;

        $container->register('app.form.type.task', 'AppBundle\Form\Type\TaskType')
        $container->register('app.form.type.task', 'AppBundle\Form\TaskType')
            ->addArgument(new Reference('app.my_service'))
            ->addTag('form.type')

 Now that your application has been updated to reflect the new requirements,
 create a form class so that a ``Category`` object can be modified by the user::

    // src/AppBundle/Form/Type/CategoryType.php
    namespace AppBundle\Form\Type;
    // src/AppBundle/Form/CategoryType.php
    namespace AppBundle\Form;

    use Symfony\Component\Form\AbstractType;
    use Symfony\Component\Form\FormBuilderInterface;
 .. code-block:: php

    use Symfony\Component\Form\FormBuilderInterface;
    use AppBundle\Form\Type\CategoryType;
    use AppBundle\Form\CategoryType;

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
Original file line number	Diff line number	Diff line change
Expand Up		@@ -992,7 +992,7 @@ In :ref:`book-form-creating-form-classes` you will learn how to move the
		form building code into separate classes. When using an external form class
		in the controller, you can pass the action and method as form options::

		use AppBundle\Form\Type\TaskType;
		use AppBundle\Form\TaskType;
		// ...

		$form = $this->createForm(TaskType::class, $task, array(
Expand DownExpand Up		@@ -1040,8 +1040,8 @@ However, a better practice is to build the form in a separate, standalone PHP
		class, which can then be reused anywhere in your application. Create a new class
		that will house the logic for building the task form::

		// src/AppBundle/Form/Type/TaskType.php
		namespace AppBundle\Form\Type;
		// src/AppBundle/Form/TaskType.php
		namespace AppBundle\Form;

		use Symfony\Component\Form\AbstractType;
		use Symfony\Component\Form\FormBuilderInterface;
Expand All		@@ -1063,7 +1063,7 @@ This new class contains all the directions needed to create the task form. It ca
		be used to quickly build a form object in the controller::

		// src/AppBundle/Controller/DefaultController.php
		use AppBundle\Form\Type\TaskType;
		use AppBundle\Form\TaskType;

		public function newAction()
		{
Expand DownExpand Up		@@ -1147,8 +1147,8 @@ type as a service, and inject all dependencies you need.
		You might want to use a service defined as ``app.my_service`` in your form
		type. Create a constructor to your form type to receive the service::

		// src/AppBundle/Form/Type/TaskType.php
		namespace AppBundle\Form\Type;
		// src/AppBundle/Form/TaskType.php
		namespace AppBundle\Form;

		use App\Utility\MyService;
		use Symfony\Component\Form\AbstractType;
Expand DownExpand Up		@@ -1184,7 +1184,7 @@ Define your form type as a service.
		# src/AppBundle/Resources/config/services.yml
		services:
		app.form.type.task:
		class: AppBundle\Form\Type\TaskType
		class: AppBundle\Form\TaskType
		arguments: ["@app.my_service"]
		tags:
		- { name: form.type }
Expand All		@@ -1198,7 +1198,7 @@ Define your form type as a service.
		xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">

		<services>
		<service id="app.form.type.task" class="AppBundle\Form\Type\TaskType">
		<service id="app.form.type.task" class="AppBundle\Form\TaskType">
		<tag name="form.type" />
		<argument type="service" id="app.my_service"></argument>
		</service>
Expand All		@@ -1210,7 +1210,7 @@ Define your form type as a service.
		// src/AppBundle/Resources/config/services.php
		use Symfony\Component\DependencyInjection\Reference;

		$container->register('app.form.type.task', 'AppBundle\Form\Type\TaskType')
		$container->register('app.form.type.task', 'AppBundle\Form\TaskType')
		->addArgument(new Reference('app.my_service'))
		->addTag('form.type')

Expand DownExpand Up		@@ -1318,8 +1318,8 @@ Next, add a new ``category`` property to the ``Task`` class::
		Now that your application has been updated to reflect the new requirements,
		create a form class so that a ``Category`` object can be modified by the user::

		// src/AppBundle/Form/Type/CategoryType.php
		namespace AppBundle\Form\Type;
		// src/AppBundle/Form/CategoryType.php
		namespace AppBundle\Form;

		use Symfony\Component\Form\AbstractType;
		use Symfony\Component\Form\FormBuilderInterface;
Expand DownExpand Up		@@ -1348,7 +1348,7 @@ class:
		.. code-block:: php

		use Symfony\Component\Form\FormBuilderInterface;
		use AppBundle\Form\Type\CategoryType;
		use AppBundle\Form\CategoryType;

		public function buildForm(FormBuilderInterface $builder, array $options)
		{
Expand Down