如何访问form_widget（form。**）的每个项目 [英] How to access each items of form_widget(form.**)

问题描述

如何访问每个表单项目

  $ builder-> add（'icon'，'entity'，array （
'class'=>'UserBundle：IconPics'，
'property'=>'label'，'expanded'=> true，'multiple'=> false，
））; 
 in twig 
 
 {{form_label（form.icon）}} 
 {{form_widget（form.icon）}} 
  / pre> 
 
 
它会自动显示此代码，并可作为单选按钮选择器使用。
 < div id =fos_user_registration_form_icon> 
< input type =radioid =fos_user_registration_form_icon_1name =fos_user_registration_form [icon]required =requiredvalue =1/> 
< label for =fos_user_registration_form_icon_1class =required> pictureA.jpg< / label> 
< input type =radioid =fos_user_registration_form_icon_2name =fos_user_registration_form [icon]required =requiredvalue =2/> 
< label for =fos_user_registration_form_icon_2class =required> pictureB.jpg< / label>< / div> 
  
但我想手动访问此代码中的每个项目。
 
 
 
由于我想要更改这样的代码。
  pictureB.jpg  - > < img src =pictureB.jpg> 
 pictureA.jpg  - > < img src =pictureA.jpg> 
  
可以吗？
解决方案
如果要自定义任何表单窗口小部件的呈现方式，则可以覆盖它。详细了解文档的如何自定义表单呈现部分。 
 
 
 
您可以找到这里所有表单字段窗口小部件块的默认行为。如文档中所述，您必须，
 
 
 
 
 
首先，知道要覆盖的块。
 
 
然后，使用表单主题（文档
充满了例子，无论你需要覆盖你的小部件只有
当给定的模板关注或全球在您的应用程序）
 
 
 
How to access the each form item
$builder->add('icon', 'entity', array(
'class' => 'UserBundle:IconPics',   
'property' => ‘label', 'expanded' => true,    'multiple' => false, 
));
in twig

{{ form_label(form.icon) }}
{{ form_widget(form.icon) }}
it show this codes automatically and works well as radio button selector.
<div id="fos_user_registration_form_icon">
<input type="radio" id="fos_user_registration_form_icon_1" name="fos_user_registration_form[icon]" required="required" value="1" />
<label for="fos_user_registration_form_icon_1" class="required">pictureA.jpg</label>
<input type="radio" id="fos_user_registration_form_icon_2" name="fos_user_registration_form[icon]" required="required" value="2" />
<label for="fos_user_registration_form_icon_2" class="required">pictureB.jpg</label></div>
But I want to access each items in this code manually.

Since,I want to change code like this.
pictureB.jpg   -->  <img src="pictureB.jpg">
pictureA.jpg   -->  <img src="pictureA.jpg">
Is it possible??
解决方案
If you want to customise the way any form widget is rendered, you've then to override it. Take a deeper look at How to customize Form Rendering section of the documentation.

You can find here the default behaviour of all the form fields widget blocks. As described in the documentation, you've to,


First, know which block to override.
Then, Override the block using form theming (the documentation
is full of examples whether you need to override your widget only
when a given template is concerned or globally on your application)


                        
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