对非对象Symfony2调用成员函数get()
嗨,我想在symFony2中渲染一个表单,并添加动态字段。 因此,我在controller中编写了以下代码:对非对象Symfony2调用成员函数get(),symfony,Symfony,嗨,我想在symFony2中渲染一个表单,并添加动态字段。 因此,我在controller中编写了以下代码: public function getDataAction(){ $handler = new AnotherClass(); $object = $handler->getForm($getAdditionalData); } “其他类别”定义如下: class AnotherClass extends Controller implements requir
public function getDataAction(){
$handler = new AnotherClass();
$object = $handler->getForm($getAdditionalData);
}
“其他类别”定义如下:
class AnotherClass extends Controller implements requiredInterface{
public function getForm($formData){
//Here i want to write Logic to render a dynamic form with dynamic fields
$form = $this->createFormBuilder($formData)
->setAction($this->generateUrl('me_route_go'))
// Set form field of additional data
foreach ($formData as $k => $v) {
$form->add($k, 'text');
}
//Create form and submit button
$form = $form->add('submit', 'submit')->add('Cancel', 'reset')->getForm();
$form = $form->getForm();
}
}
}
但这里我得到了以下错误:
Error: Call to a member function get() on a non-object.
return $this->container->get('form.factory')->createBuilder($type, $data, $options);
请提出可能的问题
提前感谢..您的控制器
另一个类
需要依赖项注入容器,因为您正在扩展基本控制器类,因此必须在实例化它之后进行设置:
public function getDataAction(){
$handler = new AnotherClass();
$handler->setContainer($this->container);
$object = $handler->getForm($getAdditionalData);
}
您也可以将其创建为服务:
services.yml
name.of.your.service:
class: Path\To\AnotherClass
calls:
- [setContainer, [ "@service_container" ]]
然后:
public function getDataAction(){
$handler = $this->get('name.of.your.service');
$object = $handler->getForm($getAdditionalData);
}
我写了完全相同的答案:DSO+1