Symfont嫩枝月年設置爲選擇的值在形式

Question

我跟着這個職位，設立信用卡到期日一個月一年部件：

How to display a month-year dropdown in Symfony2

現在我想設置田間地頭到在表單提交期間選擇的值。我該怎麼做呢？

我的表單類型：

$builder->add('card_expiration_date', 'date', array(
      'mapped' => false, 
      'widget' => 'choice', 
      'empty_value' => array('year' => 'Year', 'month' => 'Month', 'day' => 'Day'), 
      'format' => 'dd-MM-yyyy', 
      'input' => 'string', 
      'data' => date('Y-m-d'), 
      'years' => range(date('Y'), date('Y') + 10) 
     )); 

有些事情我一直在努力做的是：

試驗1：

{{ form_widget(form.card_expiration_date.month, {'value': ccMonth}) }} 
{{ form_widget(form.card_expiration_date.year, {'value': ccYear}) }} 

這正確設置值，但與此相關的問題是，它仍然呈現出形式。卡爾德諾維奇日期

試驗2：

{% if ccMonth == '' and ccYear == '' %} 
    {{ form_widget(form.card_expiration_date, {'date_pattern': '<span style="display: none;">{{ day }}</span> {{ month }} <span class="delim">&#47;</span> {{ year }}'}) }} 
{% else %} 
    {{ form_widget(form.card_expiration_date, {'date_pattern': '<span style="display: none;">{{ day }}</span> {{ month }} <span class="delim">&#47;</span> {{ year }}', 'value': cmonth~'/'~cyear }) }} 
{% endif %} 

我敢肯定有一個更好的方式來設置我的審判2的值。這只是看起來不正確的。任何幫助將不勝感激。

EDIT

試驗3：

{% if cmonth == '' and cyear == '' %} 
    {{ form_widget(form.card_expiration_date, {'date_pattern': '<span style="display: none;">{{ day }}</span> {{ month }} <span class="delim">&#47;</span> {{ year }}'}) }} 
{% else %} 
    {{ form_widget(form.card_expiration_date, {'date_pattern': '<span style="display: none;">{{ day }}</span> {{ month }} <span class="delim">&#47;</span> {{ year }}'}) }} 
    {{ form_widget(form.card_expiration_date.month, {'value': cmonth}) }} 
    {{ form_widget(form.card_expiration_date.year, {'value': cyear}) }} 
{% endif %} 

EDIT2

{% set ccMonth = cardInfo.card.expdate|slice(2, 2) %} 
{% set cmonth = (cardInfo.card)? ((ccMonth starts with '0')? ccMonth|slice(1, 1) : ccMonth) : '' %} 
{% set cyear = (cardInfo.card)? '20'~cardInfo.card.expdate|slice(0, 2) : '' %} 

<div class="col-lg-8"> 
    {% if cmonth == '' and cyear == '' %} 
     {{ form_widget(form.card_expiration_date, {'date_pattern': '<span style="display: none;">{{ day }}</span> {{ month }} <span class="delim">&#47;</span> {{ year }}'}) }} 
    {% else %} 
     {{ form_widget(form.card_expiration_date, {'date_pattern': '<span style="display: none;">{{ day }}</span> {{ month }} <span class="delim">&#47;</span> {{ year }}'}) }} 
     {{ form_widget(form.card_expiration_date.month, {'value': cmonth}) }} 
     {{ form_widget(form.card_expiration_date.year, {'value': cyear}) }} 
    {% endif %} 
    {{ form_errors(form.card_expiration_date) }} 
</div> 

EDIT3

這就是我所做的。不知道這是否是正確的方式，但似乎工作。

控制器：

$form = $this->createForm(new BillingType($em, $ccInfo), $billing, array(
     'action' => $this->generateUrl('save_billing', array('id' => $id)), 
     'method' => 'POST' 
    )); 

BillingType：

function __construct(EntityManager $em, $ccInfo) 
{ 
    $this->em = $em; 
    $this->ccInfo = $ccInfo; 
} 

public function buildForm(FormBuilderInterface $builder, array $options) 
{ 
    $date = date('Y-m-d'); 

    if(! is_null($this->ccInfo['card'])) 
    { 
     if (substr($this->ccInfo['card']['expdate'], -2, 1) == '0') 
     { 
      $ccMonth = substr($this->ccInfo['card']['expdate'], -1, 1); 
     } 
     else 
     { 
      $ccMonth = substr($this->ccInfo['card']['expdate'], -2, 2); 
     } 
     $ccYear = '20'.substr($this->ccInfo['card']['expdate'], 0, 2); 

     $date = date('Y-m-d', strtotime($ccYear.'-'.$ccMonth.'-01')); 
    } 

$builder->add('card_expiration_date', 'date', array(
      'mapped' => false, 
      'widget' => 'choice', 
      'empty_value' => array('year' => 'Year', 'month' => 'Month', 'day' => 'Day'), 
      'format' => 'dd-MM-yyyy', 
      'input' => 'string', 
      'data' => $date, 
      'years' => range(date('Y'), date('Y') + 10) 
     )); 
} 

Answer 1

都不是。您應該設置底層對象（或數組）的數據。如果存在，則form_widget視圖助手將已經呈現該值。如果您處於控制器環境中，則已有一種方法可以執行此操作

$form->handleRequest($this->getRequest()); 

這會將請求數據綁定到表單的數據對象。如果您想分享更多詳細信息，我可以幫助您解決您的具體實施問題。