Symfony2嵌入表单值(Symfony2 Embed form values)

 我有自己的实用程序CalculatorType，用于计算我的文档的值（我正在使用ODM），而不是对另一个文档或子数组|对象的引用。 它有简单的2输入： 
 
 $builder
            ->add('price', 'text', array(
                'label' => false,
                'data' => isset($options['data']) ? $options['data']->getPrice() : '0.00'
            ))
            ->add('count', 'integer', array(
                'label' => false,
                'data' => isset($options['data']) ? $options['data']->getCount() : '10000'
            ));
 
 在父母形式我有： 
 
$builder->
 ... // multiple fields
 ->add('calculator', 'calculator');
 
 因此，当我尝试保存表单时，出现错误： 
 
Neither the property "calculator" nor one of the methods
 
 要跳过设置计算器字段，我已将mapped => false添加到选项中 
 
 ->add('calculator', 'calculator', array('mapped' => false));
 
 并添加了eventlistener来转换计算器数据 
 
    $builder->addEventListener(FormEvents::PRE_SUBMIT, function (FormEvent $event) {
        $data = $event->getData();
        $data["price"] = $data["calculator"]["price"];
        $data["count"] = $data["calculator"]["count"];
        unset($data["calculator"]);
        $event->setData($data);
    });
 
 现在表单提交值但计算器字段没有传递给嵌入表单，因为未设置$ data ['calculator'] 
 
 如果我评论未unset($data["calculator"]); 然后我有一个错误 
 
This form should not contain extra fields 
 
 所以我找不到任何方法让这个表格起作用。 有任何想法吗？ 

I have my own utility CalculatorType for just calculating values for my document(I am using ODM), not reference for another document or sub arrays|object. It has simple 2 inputs:
 
 $builder
            ->add('price', 'text', array(
                'label' => false,
                'data' => isset($options['data']) ? $options['data']->getPrice() : '0.00'
            ))
            ->add('count', 'integer', array(
                'label' => false,
                'data' => isset($options['data']) ? $options['data']->getCount() : '10000'
            ));
 
In parent form I have:
 
$builder->
 ... // multiple fields
 ->add('calculator', 'calculator');
 
So when I am trying to save my form, I have an error: 
 
Neither the property "calculator" nor one of the methods
 
To skip setting calculator field, I've added mapped => false to options
 
 ->add('calculator', 'calculator', array('mapped' => false));
 
and added eventlistener to transform calculator data
 
    $builder->addEventListener(FormEvents::PRE_SUBMIT, function (FormEvent $event) {
        $data = $event->getData();
        $data["price"] = $data["calculator"]["price"];
        $data["count"] = $data["calculator"]["count"];
        unset($data["calculator"]);
        $event->setData($data);
    });
 
Now form submits values but calculator fields not passing to embed form, because of unsetting $data['calculator']
 
If I comment unset($data["calculator"]); then I have an error 
 
This form should not contain extra fields 
 
So I can't find any way to make this form work. Any ideas?

原文：https://stackoverflow.com/questions/22757366