2015-01-18 13:24
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I am trying to list specific dates from MongoDB database, from a custom query, in a select (dropdown) field using Symfony 2, using entity (document) form type.

I am trying the following:

$defaultData = array();
    $form = $this->createFormBuilder($defaultData)
                ->add('date', 'document', array(
                    'class' => 'MyBundle:Items',
                    'property' => 'date',
                    'query_builder' => function(DocumentRepository $dr) {
                        return $dr->createQueryBuilder('Items')
                ->add('Search', 'submit')

This returns error "Object of class DateTime could not be converted to string" in twig template.

Is there a way to format DateTime to string in form output, or is there a way to achieve this with a date field? Any help and an example is highly appreciated. Thank you.

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我试图在一个选择(下拉列表)字段中使用自定义查询列出MongoDB数据库中的特定日期 Symfony 2,使用实体(文档)表单类型。


  $ defaultData = array(); \  n $ form = $ this-> createFormBuilder($ defaultData)
  - > add('date','document',array(
'property'  =>'date',
'query_builder'=> function(DocumentRepository $ dr){
 return $ dr-> createQueryBuilder('Items')
  - > field('user') - > 引用($ this-> getUser()); 
  - > add('Search','submit')
  - > getForm(); 


有没有办法形成 在DateTime中以字符串形式输出,或者有没有办法用日期字段实现这一点? 任何帮助和一个例子都非常感谢。 谢谢。

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1条回答 默认 最新

  • duandi4238 2015-01-18 13:41

    You should just add a method that returns date formatted as you wish:

    class Items 
         private $date;
         public function getDate()
              return $this->date;
         public function getDateString()
              return $this->date->format('d-m-Y');

    And the just use that method as property in your form field:

    ->add('date', 'document', array(
          'class' => 'MyBundle:Items',
          'property' => 'date_string',
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