Twig 在细枝模板中设置文本区域值

我需要为表单设置要编辑的值。我需要在文本区域设置文本。我在html.twig文件中尝试了以下内容：

<div class="form-group">
      {{ form_widget(blog_form.post_subheading1, { 'attr': {'class': 'form-control', 'placeholder': 'Enter Subheading 1', 'value': post_data.postSubheading1 } }) }}
      {{ form_errors(blog_form.post_subheading1) }}
    </div>

---

您可以在类型文件中添加

数据

，如下所示：

->add('post_intro', 'textarea', 
      'attr' => array('cols' => '5', 'rows' => '6'),
      'required' => false
      'data' => "your text here"
      )) 

如果该值是动态的，则改为使用选项进行设置：

->add('post_intro', 'textarea', array(
      'attr' => array('cols' => '5', 'rows' => '6'),
      'required' => false
      'data' => $options["yourData"],
      )) 

然后，您可以在创建表单时从控制器发送数据。控制器：

$yourData = "something" // here you will set what you want to display in the field. 

$form = $this->createForm(YourClass::class, $yourClass, 
        ['yourData' => $yourData]);

->add('post_intro', 'textarea', array(
      'attr' => array('cols' => '5', 'rows' => '6'),
      'required' => false
      'data' => $options["yourData"],
      )) 

$yourData = "something" // here you will set what you want to display in the field. 

$form = $this->createForm(YourClass::class, $yourClass, 
        ['yourData' => $yourData]);