<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Form;
use Symfony\Component\Form\Exception\FormException;
use Symfony\Component\Form\Exception\UnexpectedTypeException;
use Symfony\Component\Form\Exception\CircularReferenceException;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
class FormBuilder
{
/**
* @var string
*/
private $name;
/**
* The form data in application format
* @var mixed
*/
private $appData;
/**
* The event dispatcher
*
* @var EventDispatcherInterface
*/
private $dispatcher;
/**
* The form factory
* @var FormFactoryInterface
*/
private $factory;
/**
* @var Boolean
*/
private $readOnly;
/**
* @var Boolean
*/
private $required;
/**
* The transformers for transforming from normalized to client format and
* back
* @var array An array of DataTransformerInterface
*/
private $clientTransformers = array();
/**
* The transformers for transforming from application to normalized format
* and back
* @var array An array of DataTransformerInterface
*/
private $normTransformers = array();
/**
* @var array An array of FormValidatorInterface
*/
private $validators = array();
/**
* Key-value store for arbitrary attributes attached to the form
* @var array
*/
private $attributes = array();
/**
* @var array An array of FormTypeInterface
*/
private $types = array();
/**
* @var string
*/
private $dataClass;
/**
* The children of the form
* @var array
*/
private $children = array();
/**
* @var DataMapperInterface
*/
private $dataMapper;
/**
* Whether added errors should bubble up to the parent
* @var Boolean
*/
private $errorBubbling = false;
/**
* Data used for the client data when no value is bound
* @var mixed
*/
private $emptyData = '';
private $currentLoadingType;
/**
* Constructor.
*
* @param string $name
* @param FormFactoryInterface $factory
* @param EventDispatcherInterface $dispatcher
* @param string $dataClass
*/
public function __construct($name, FormFactoryInterface $factory, EventDispatcherInterface $dispatcher, $dataClass = null)
{
$this->name = $name;
$this->factory = $factory;
$this->dispatcher = $dispatcher;
$this->dataClass = $dataClass;
}
/**
* Returns the associated form factory.
*
* @return FormFactoryInterface The factory
*/
public function getFormFactory()
{
return $this->factory;
}
/**
* Returns the name of the form.
*
* @return string The form name
*/
public function getName()
{
return $this->name;
}
/**
* Updates the field with default data.
*
* @param array $appData The data formatted as expected for the underlying object
*
* @return FormBuilder The current builder
*/
public function setData($appData)
{
$this->appData = $appData;
return $this;
}
/**
* Returns the data in the format needed for the underlying object.
*
* @return mixed
*/
public function getData()
{
return $this->appData;
}
/**
* Set whether the form is read only
*
* @param Boolean $readOnly Whether the form is read only
*
* @return FormBuilder The current builder
*/
public function setReadOnly($readOnly)
{
$this->readOnly = (Boolean) $readOnly;
return $this;
}
/**
* Returns whether the form is read only.
*
* @return Boolean Whether the form is read only
*/
public function getReadOnly()
{
return $this->readOnly;
}
/**
* Sets whether this field is required to be filled out when bound.
*
* @param Boolean $required
*
* @return FormBuilder The current builder
*/
public function setRequired($required)
{
$this->required = (Boolean) $required;
return $this;
}
/**
* Returns whether this field is required to be filled out when bound.
*
* @return Boolean Whether this field is required
*/
public function getRequired()
{
return $this->required;
}
/**
* Sets whether errors bubble up to the parent.
*
* @param type $errorBubbling
*
* @return FormBuilder The current builder
*/
public function setErrorBubbling($errorBubbling)
{
$this->errorBubbling = (Boolean) $errorBubbling;
return $this;
}
/**
* Returns whether errors bubble up to the parent.
*
* @return Boolean
*/
public function getErrorBubbling()
{
return $this->errorBubbling;
}
/**
* Adds a validator to the form.
*
* @param FormValidatorInterface $validator The validator
*
* @return FormBuilder The current builder
*/
public function addValidator(FormValidatorInterface $validator)
{
$this->validators[] = $validator;
return $this;
}
/**
* Returns the validators used by the form.
*
* @return array An array of FormValidatorInterface
*/
public function getValidators()
{
return $this->validators;
}
/**
* Adds an event listener for events on this field
*
* @see Symfony\Component\EventDispatcher\EventDispatcherInterface::addListener
*
* @return FormBuilder The current builder
*/
public function addEventListener($eventName, $listener, $priority = 0)
{
$this->dispatcher->addListener($eventName, $listener, $priority);
return $this;
}
/**
* Adds an event subscriber for events on this field
*
* @see Symfony\Component\EventDispatcher\EventDispatcherInterface::addSubscriber
*
* @return FormBuilder The current builder
*/
public function addEventSubscriber(EventSubscriberInterface $subscriber)
{
$this->dispatcher->addSubscriber($subscriber);
return $this;
}
/**
* Appends a transformer to the normalization transformer chain
*
* @param DataTransformerInterface $clientTransformer
*
* @return FormBuilder The current builder
*/
public function appendNormTransformer(DataTransformerInterface $normTransformer)
{
$this->normTransformers[] = $normTransformer;
return $this;
}
/**
* Prepends a transformer to the client transformer chain
*
* @param DataTransformerInterface $normTransformer
*
* @return FormBuilder The current builder
*/
public function prependNormTransformer(DataTransformerInterface $normTransformer)
{
array_unshift($this->normTransformers, $normTransformer);
return $this;
}
/**
* Clears the normalization transformers.
*
* @return FormBuilder The current builder
*/
public function resetNormTransformers()
{
$this->normTransformers = array();
return $this;
}
/**
* Returns all the normalization transformers.
*
* @return array An array of DataTransformerInterface
*/
public function getNormTransformers()
{
return $this->normTransformers;
}
/**
* Appends a transformer to the client transformer chain
*
* @param DataTransformerInterface $clientTransformer
*
* @return FormBuilder The current builder
*/
public function appendClientTransformer(DataTransformerInterface $clientTransformer)
{
$this->clientTransformers[] = $clientTransformer;
return $this;
}
/**
* Prepends a transformer to the client transformer chain
*
* @param DataTransformerInterface $clientTransformer
*
* @return FormBuilder The current builder
*/
public function prependClientTransformer(DataTransformerInterface $clientTransformer)
{
array_unshift($this->clientTransformers, $clientTransformer);
return $this;
}
/**
* Clears the client transformers.
*
* @return FormBuilder The current builder
*/
public function resetClientTransformers()
{
$this->clientTransformers = array();
return $this;
}
/**
* Returns all the client transformers.
*
* @return array An array of DataTransformerInterface
*/
public function getClientTransformers()
{
return $this->clientTransformers;
}
/**
* Sets the value for an attribute.
*
* @param string $name The name of the attribute
* @param string $value The value of the attribute
*
* @return FormBuilder The current builder
*/
public function setAttribute($name, $value)
{
$this->attributes[$name] = $value;
return $this;
}
/**
* Returns the value of the attributes with the given name.
*
* @param string $name The name of the attribute
*/
public function getAttribute($name)
{
return $this->attributes[$name];
}
/**
* Returns whether the form has an attribute with the given name.
*
* @param string $name The name of the attribute
*/
public function hasAttribute($name)
{
return isset($this->attributes[$name]);
}
/**
* Returns all the attributes.
*
* @return array An array of attributes
*/
public function getAttributes()
{
return $this->attributes;
}
/**
* Sets the data mapper used by the form.
*
* @param DataMapperInterface $dataMapper
*
* @return FormBuilder The current builder
*/
public function setDataMapper(DataMapperInterface $dataMapper)
{
$this->dataMapper = $dataMapper;
return $this;
}
/**
* Returns the data mapper used by the form.
*
* @return array An array of DataMapperInterface
*/
public function getDataMapper()
{
return $this->dataMapper;
}
/**
* Set the types.
*
* @param array $types An array FormTypeInterface
*
* @return FormBuilder The current builder
*/
public function setTypes(array $types)
{
$this->types = $types;
return $this;
}
/**
* Return the types.
*
* @return array An array of FormTypeInterface
*/
public function getTypes()
{
return $this->types;
}
/**
* Sets the data used for the client data when no value is bound.
*
* @param mixed $emptyData
*/
public function setEmptyData($emptyData)
{
$this->emptyData = $emptyData;
return $this;
}
/**
* Returns the data used for the client data when no value is bound.
*
* @return mixed
*/
public function getEmptyData()
{
return $this->emptyData;
}
/**
* Adds a new field to this group. A field must have a unique name within
* the group. Otherwise the existing field is overwritten.
*
* If you add a nested group, this group should also be represented in the
* object hierarchy.
*
* @param string|FormBuilder $child
* @param string|FormTypeInterface $type
* @param array $options
*
* @return FormBuilder The current builder
*/
public function add($child, $type = null, array $options = array())
{
if ($child instanceof self) {
$this->children[$child->getName()] = $child;
return $this;
}
if (!is_string($child)) {
throw new UnexpectedTypeException($child, 'string or Symfony\Component\Form\FormBuilder');
}
if (null !== $type && !is_string($type) && !$type instanceof FormTypeInterface) {
throw new UnexpectedTypeException($type, 'string or Symfony\Component\Form\FormTypeInterface');
}
if ($this->currentLoadingType && ($type instanceof FormTypeInterface ? $type->getName() : $type) == $this->currentLoadingType) {
throw new CircularReferenceException(is_string($type) ? $this->getFormFactory()->getType($type) : $type);
}
$this->children[$child] = array(
'type' => $type,
'options' => $options,
);
return $this;
}
/**
* Creates a form builder.
*
* @param string $name The name of the form or the name of the property
* @param string|FormTypeInterface $type The type of the form or null if name is a property
* @param array $options The options
*
* @return FormBuilder The builder
*/
public function create($name, $type = null, array $options = array())
{
if (null === $type && !$this->dataClass) {
$type = 'text';
}
if (null !== $type) {
return $this->getFormFactory()->createNamedBuilder($type, $name, null, $options);
}
return $this->getFormFactory()->createBuilderForProperty($this->dataClass, $name, null, $options);
}
/**
* Returns a child by name.
*
* @param string $name The name of the child
*
* @return FormBuilder The builder for the child
*
* @throws FormException if the given child does not exist
*/
public function get($name)
{
if (!isset($this->children[$name])) {
throw new FormException(sprintf('The field "%s" does not exist', $name));
}
if (!$this->children[$name] instanceof FormBuilder) {
$this->children[$name] = $this->create(
$name,
$this->children[$name]['type'],
$this->children[$name]['options']
);
}
return $this->children[$name];
}
/**
* Removes the field with the given name.
*
* @param string $name
*
* @return FormBuilder The current builder
*/
public function remove($name)
{
if (isset($this->children[$name])) {
unset($this->children[$name]);
}
return $this;
}
/**
* Returns whether a field with the given name exists.
*
* @param string $name
*
* @return Boolean
*/
public function has($name)
{
return isset($this->children[$name]);
}
/**
* Creates the form.
*
* @return Form The form
*/
public function getForm()
{
$instance = new Form(
$this->getName(),
$this->buildDispatcher(),
$this->getTypes(),
$this->getClientTransformers(),
$this->getNormTransformers(),
$this->getDataMapper(),
$this->getValidators(),
$this->getRequired(),
$this->getReadOnly(),
$this->getErrorBubbling(),
$this->getEmptyData(),
$this->getAttributes()
);
foreach ($this->buildChildren() as $child) {
$instance->add($child);
}
if (null !== $this->getData()) {
$instance->setData($this->getData());
}
return $instance;
}
public function setCurrentLoadingType($type)
{
$this->currentLoadingType = $type;
}
/**
* Returns the event dispatcher.
*
* @return type
*/
protected function buildDispatcher()
{
return $this->dispatcher;
}
/**
* Creates the children.
*
* @return array An array of Form
*/
protected function buildChildren()
{
$children = array();
foreach ($this->children as $name => $builder) {
if (!$builder instanceof FormBuilder) {
$builder = $this->create($name, $builder['type'], $builder['options']);
}
$children[$builder->getName()] = $builder->getForm();
}
return $children;
}
}