$builder->add('children',CollectionType::class, ['entry_type'=>ChildType::class, ]); I go into myChildType::buildForm(FormBuilderInterface $builder, array $options)function to find$options['data']is not set and$builder->getData()isNULL. How to reproduce Create a basic parentOneToManychil...
由于您已经将empty_data设置为CustomItem的单个示例，因此每个新行都将重用此相同的示例。在CollectionType...
由于您已经将empty_data设置为CustomItem的单个示例，因此每个新行都将重用此相同的示例。在CollectionType...
The required option also affects how empty data for each field is handled. For more details, see theempty_dataoption. row_attr type:arraydefault:[] An associative array of the HTML attributes added to the element which is used to render theform type row: ...
经过几次尝试，我终于找到了一个解决方案，方法是结合创建一个从类型扩展和一个数据变压器。
type:mixeddefault:null This option can be used to attach arbitrary domain-specific data to a constraint. The configured payload is not used by the Validator component, but its processing is completely up to you. For example, you may want to useseveral error levelsto present failed constraints ...
您还将by_reference设置为CollectionType上的false，这意味着您的CustomContainer类上的加法器方法将以相同...
只需单击一下，我就可以提交多个部分。//Controller.php
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DATABASE_URL=mysql://user12:s$cret@localhost:3306/mydb 在.env文件中,我们配置数据库 URL。 $ php bin/console make:controller HomeController HomeController由 Symfony 制造商创建。 src/Controller/HomeController.php <?phpnamespaceApp\Controller;useDoctrine\DBAL\Connection;useSymfony\Component\Routing\Anno...