Symfony - 将项目作为纯文本 [英] Symfony - Form item as plain text

问题描述

我有一个表单，包含一组表单（一个投票和许多 VoteChoice ）。 VoteChoiceType 如下

I have a form that contains a collection of forms (a Vote with many VoteChoice). The VoteChoiceType is as follows

class VoteChoiceType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('answer', null, array('disabled' => true))
            ->add('priority', null);
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'PollBundle\Entity\VoteChoice',
        ));
    }
}

现在在我的控制器中，我创建并填充了许多 VoteChoices ，根据当前投票的可用选项（从URL导出）设置答案

Now in my Controller I create and populate many VoteChoices, setting the answer according to the available choices for the current poll (derived from the URL)

$vote = new Vote();
$vote->setPoll($poll);
foreach ($vote->getPoll()->getPollOptions() as $op) {
    $vc = New VoteChoice();
    $vote->addVoteChoice($vc->setAnswer($op));
}

所以当窗体加载时，我希望所有选项只显示 - 不作为实际选择，然后用户可以设置他们想要的优先级。但是，答案是在我的 poll_options 表（每个投票中有很多 PollOption ，类似于每个投票有很多 VoteChoice ）

So when the Form loads, I want all the options to display only - not to be an actual choice, and then the user can set the priority they want. However, the answer is of every single answer I have in my poll_options table (each Poll has many PollOption, similar to how each Vote has many VoteChoice)

当前的树枝模板

<ul class="voteChoices" data-prototype="{{ form_widget(form.voteChoices.vars.prototype)|e('html_attr')  }}">
    {% for voteChoice in form.voteChoices %}
            <li>{{ form_row(voteChoice.answer) }} {{ form_row(voteChoice.priority) }}</li>
    {% endfor %}
</ul>
</div>
<p><button type="submit" class="btn btn-success">Go!</button></p>
{{ form_end(form) }}

我想把voteChoice.answer作为一个简单文本（所以它不是下拉菜单的一部分 - 我知道我可以在FormBuilder中禁用它，但我不希望它作为下拉菜单的一部分出现，我只是想将其作为纯文本）

I want the voteChoice.answer as a plain text (so it's not part of a dropdown - I know I can disable it in the FormBuilder, but I don't want it to appear as part of a drop-down menu, I just want it as plain text)

如果我使用voteChoice.answer，我得到以下symfony错误

If I use voteChoice.answer I get the following symfony error

已经抛出异常在模板的渲染过程中（第9行）的poll\vote.html.twig中的Catchable致命错误：类Symfony\Component\Form\FormView的对象无法转换为字符串）。

An exception has been thrown during the rendering of a template ("Catchable Fatal Error: Object of class Symfony\Component\Form\FormView could not be converted to string") in poll\vote.html.twig at line 9.

我的 VoteChoice 类中有一个__toString函数。

I have a __toString function in my VoteChoice class.

推荐答案

我想把voteChoice.answer作为一个纯文本（所以它不是下拉菜单的一部分 - 我知道我可以禁用它FormBuilder，但是我不希望它作为下拉菜单的一部分出现，我只是想要它ain文本）

I want the voteChoice.answer as a plain text (so it's not part of a dropdown - I know I can disable it in the FormBuilder, but I don't want it to appear as part of a drop-down menu, I just want it as plain text)

您可以通过 form.vars.value （参考）：

{{ voteChoice.vars.value.answer }}

这意味着 voteChoice.vars.value 是 PollBundle\Entity\VoteChoice 因此，如果编辑不需要，您可以安全地从您的表单中删除答案字段。

This means that voteChoice.vars.value is an instance of PollBundle\Entity\VoteChoice so you can remove the answer field from your form safely if this is not required by edit.

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