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Merche
Asked: 2020-03-13 11:03:05 +0800 CST 2020-03-13 11:03:05 +0800 CST

Symfony 3动态选择，市和省

  • 772

我正在尝试制作一个注册表单，其中除了通常的字段名称、别名、密码（nombre和nick）password...我还添加了两个依赖字段Municipio和Provincia。

问题是它只在市政字段中显示多条未定义的消息。

在此处输入图像描述

创建表单的实体 ( Entity) 是DbUsuario，它具有字段idMunicipio。

/** @var \BackendBundle\Entity\DbMunicipios */
private $idMunicipio;

/**
 * Set idMunicipio
 * @param \BackendBundle\Entity\DbMunicipio $idMunicipio
 * @return DbUsuario
 */
public function setIdMunicipio(\BackendBundle\Entity\DbMunicipio $idMunicipio = null) {
    $this->idMunicipio = $idMunicipio;
    return $this;
}
/**
 * Get idMunicipio
 * @return \BackendBundle\Entity\DbMunicipio
 */
public function getIdMunicipio() {
    return $this->idMunicipio;
}

然后与省连接的实体DbMunicipio：

/** @var \BackendBundle\Entity\DbProvincia */
private $provincia;

/**@param \BackendBundle\Entity\DbProvincia $provincia
 * @return DbMunicipio
 */
public function setProvincia(\BackendBundle\Entity\DbProvincia $provincia = null){
    $this->provincia = $provincia;
    return $this;
}
/**@return \BackendBundle\Entity\DbProvincia */
public function getProvincia(){
    return $this->provincia;
}

DbProvincia以及只有字段id( integer)、slug( String) 和provincia( )的实体String。

我将表格定义如下：

namespace AppBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\Extension\Core\Type\EmailType;
use Symfony\Component\Form\Extension\Core\Type\PasswordType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use Doctrine\ORM\EntityRepository;
use AppBundle\Form\EventListener\AddProvinciaField;
use AppBundle\Form\EventListener\AddMunicipioField;

class RegistreUserType extends AbstractType {

    public function buildForm(FormBuilderInterface $builder, array $options) {
         $factory = $builder->getFormFactory(); 

        $builder->add('nombre', TextType::class, array('label' => 'Nombre',
            'required' => 'required',
            'attr' => array('class' => 'form-nombre form-control')
        ));
        $builder->add('apellido', TextType::class, array('label' => 'Apellido',
            'required' => 'required',
            'attr' => array('class' => 'form-apellido form-control')
        ));
        $builder->add('nick', TextType::class, array('label' => 'Nick',
            'required' => 'required',
            'attr' => array('class' => 'form-nick form-control nick-input')
        ));
        $provinSubscriber = new AddProvinciaField($factory);
        $builder->addEventSubscriber($provinSubscriber);

        $muniSubscriber = new AddMunicipioField($factory);
        $builder->addEventSubscriber($muniSubscriber);

        $builder->add('email', EmailType::class, array('label' => 'Correo electrónico',
            'required' => 'required',
            'attr' => array('class' => 'form-email form-control')
        ));
        $builder->add('password', PasswordType::class, array('label' => 'Password',
            'required' => 'required',
            'attr' => array('class' => 'form-password form-control')
        ));
        $builder->add('Registrarse', SubmitType::class, array("attr" => array("class" => "form-submit btn btn-success")));
    }
    public function configureOptions(OptionsResolver $resolver) {
        $resolver->setDefaults(array(
            'data_class' => 'BackendBundle\Entity\DbUsuario'
        ));
    }
    public function getBlockPrefix() { return 'backendbundle_dbusuario'; }
}

我在AppBundle\Form\eventListener中定义了类，以以下形式调用：

AddProvinciaField
namespace AppBundle\Form\EventListener;

use Symfony\Component\Form\Form;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormEvents;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\Form\FormFactoryInterface;
use Doctrine\ORM\EntityRepository;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use BackendBundle\Entity\DbProvincia;

class AddProvinciaField implements EventSubscriberInterface
{
     private $factory;

    public function __construct(FormFactoryInterface $factory) {
        $this->factory = $factory;
    }
    public static function getSubscribedEvents() {
        return array(
            FormEvents::PRE_SET_DATA => 'preSetData',
            FormEvents::PRE_SUBMIT     => 'preSubmit'
        );
    }
    private function addProvinciaForm($form, $provincia) {

       $form -> add('provincia', EntityType::class, array(
            'class'         => 'BackendBundle:DbProvincia',
            'label'         => 'Provincia',
            'placeholder'   => '_ Elegir _',
            'auto_initialize' => false,
            'mapped'        => false,
            'attr'=> array('class' => 'form-provincia form-control provincia-input'),
            'query_builder' => function (EntityRepository $repository) {
                $qb = $repository->createQueryBuilder('provincia');
                return $qb;
            }
        ));
    }
    public function preSetData(FormEvent $event){
        $data = $event->getData();
        $form = $event->getForm();

        if (null === $data) {return;}

        $provincia = ($data->getIdMunicipio()) ? $data->getIdMunicipio()->getProvincia() : null ;
        $this->addProvinciaForm($form, $provincia);
    }
    public function preSubmit(FormEvent $event) {
        $data = $event->getData();
        $form = $event->getForm();

        if (null === $data) { return;}

        $provincia = array_key_exists('provincia-input', $data) ? $data['provincia-input'] : null;
        $this->addProvinciaForm($form, $provincia);
    }
}

后来我定义了 AddMunicipioField.php：

 namespace AppBundle\Form\EventListener;

 use Symfony\Component\Form\FormEvent;
 use Symfony\Component\Form\FormEvents;
 use Symfony\Component\Form\FormFactoryInterface;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Doctrine\ORM\EntityRepository;
 use Symfony\Bridge\Doctrine\Form\Type\EntityType;
 use BackendBundle\Entity\DbProvincia;


class AddMunicipioField implements EventSubscriberInterface {
    private $factory;

    public function _construct(FormFactoryInterface $factory) {
        $this->factory = $factory;
    }

    public static function getSubscribedEvents() {
        return array(
            FormEvents::PRE_SET_DATA => 'preSetData',
            FormEvents::PRE_SUBMIT     => 'preSubmit'
        );
    }
    private function addMunicipioForm($form, $provincia) {
        $form->add('idMunicipio', EntityType::class, array(
            'class'         => 'BackendBundle:DbMunicipio',
            'label'         => 'Municipio',
            'placeholder'   => '_ Elegir _',
            'auto_initialize' => false,
            'attr'=> array('class' => 'form-municipio form-control municipio-input'),
            'query_builder' => function (EntityRepository $repository) use ($provincia) {
                $qb = $repository->createQueryBuilder('idMunicipio')
                    ->innerJoin('idMunicipio.provincia', 'provincia');
                if ($provincia instanceof DbProvincia) {
                    $qb->where('idMunicipio.provincia = :provincia')
                    ->setParameter('provincia', $provincia);
                    var_dump($provincia);
                } elseif (is_numeric($provincia)) {
                    $qb->where('provincia.id = :provincia')
                    ->setParameter('provincia', $provincia);
                    var_dump($provincia);
                } else {
                    $qb->where('provincia.provincia = :provincia')
                    ->setParameter('provincia', null);
                    var_dump($provincia);
                }
                return $qb;
            }
        ));
    }
    public function preSetData(FormEvent $event){
        $data = $event->getData();
        $form = $event->getForm();

        if (null === $data) { return; }

        $provincia = ($data->getIdMunicipio()) ? $data->getIdMunicipio()->getProvincia() : null ;
        $this->addMunicipioForm($form, $provincia);
    }
    public function preSubmit(FormEvent $event){
        $data = $event->getData();
        $form = $event->getForm();

        if (null === $data) { return; }

        $provincia = array_key_exists('select_provincia', $data) ? $data['select_provincia'] : null;
        $this->addMunicipioForm($form, $provincia);
    }
}

最后是AJAX请求：

$(document).ready(function () {
    $('.provincia-input').change(function () {
        var $form = $(this).closest('form');
        var data = $('.provincia-input').serialize();

        $.ajax({
            url: $form.attr('action'),
            type: 'POST',
            data: data,
            success: function (html) {
                $('.municipio-input').replaceWith($(html).find('.municipio-input'));
            }
        });
    });
});
symfony2

1 Answers

  1. Best Answer

    解决：

    在表单中，我调用了我将在下面定义的两个新类来创建两个依赖选择。'idMunicipio' 是实体中该字段的名称。

    $builder -> addEventSubscriber(new AddMunicipioFieldSubscriber('idMunicipio'));
$builder -> addEventSubscriber(new AddProvinceFieldSubscriber('idMunicipio'));

    首先选择，选择省份。

    class AddProvinceFieldSubscriber implements EventSubscriberInterface {
private $propertyPathToMunicipio;

public function __construct($propertyPathToMunicipio) {
    $this->propertyPathToMunicipio = $propertyPathToMunicipio;
}

public static function getSubscribedEvents() {
    return array(
        FormEvents::PRE_SET_DATA => 'preSetData',
        FormEvents::PRE_SUBMIT   => 'preSubmit'
    );
}

private function addProvinceForm($form, $Province = null) {
    $formOptions = array(
        'class'         => 'BackendBundle:DbProvincia',
        'mapped'        => false,
        'label'         => 'Provincia',
        'attr'          => array(
            'class' => 'class_select_provincia',
        ),
    );

    if ($Province) {
        $formOptions['data'] = $Province;
    }

    $form->add('provincia', EntityType::class, $formOptions);
}

public function preSetData(FormEvent $event){
    $data = $event->getData();
    $form = $event->getForm();

    if (null === $data) {
        return;
    }

    $accessor = PropertyAccess::createPropertyAccessor();

    $municipio    = $accessor->getValue($data, $this->propertyPathToMunicipio);
    $provincia = ($municipio) ? $municipio->getIdMunicipio()->getProvincia() : null;

    $this->addProvinceForm($form, $provincia);
}

public function preSubmit(FormEvent $event){
    $form = $event->getForm();

    $this->addProvinceForm($form);
}
}

    第二选择依赖省，选择直辖市。

    class AddMunicipioFieldSubscriber implements EventSubscriberInterface {

private $propertyPathToMunicipio;

public function __construct($propertyPathToMunicipio){
    $this->propertyPathToMunicipio = $propertyPathToMunicipio;
}

public static function getSubscribedEvents(){
    return array(
        FormEvents::PRE_SET_DATA  => 'preSetData',
        FormEvents::PRE_SUBMIT    => 'preSubmit'
    );
}

private function addCityForm($form, $province_id){
    $formOptions = array(
        'class'         => 'BackendBundle:DbMunicipio',
        'label'         => 'Municipio',
        'attr'          => array(
            'class' => 'class_select_municipio',
        ),
        'query_builder' => function (EntityRepository $repository) use ($province_id) {
            $qb = $repository->createQueryBuilder('municipio')
                ->innerJoin('municipio.provincia', 'provincia')
                ->where('provincia.id = :provincia')
                ->setParameter('provincia', $province_id)
            ;

            return $qb;
        }
    );

    $form->add($this->propertyPathToMunicipio, EntityType::class, $formOptions);
}

public function preSetData(FormEvent $event){
    $data = $event->getData();
    $form = $event->getForm();

    if (null === $data) {
        return;
    }

    $accessor    = PropertyAccess::createPropertyAccessor();

    $municipio        = $accessor->getValue($data, $this->propertyPathToMunicipio);
    $province_id = ($municipio) ? $municipio->getIdMunicipio()->getProvincia()->getId() : null;

    $this->addCityForm($form, $province_id);
}

public function preSubmit(FormEvent $event){
    $data = $event->getData();
    $form = $event->getForm();

    $province_id = array_key_exists('provincia', $data) ? $data['provincia'] : null;

    $this->addCityForm($form, $province_id);
} 
}

    在控制器中我添加以下函数来收集省份的 id 值并生成 dql 查询。

        public function municipioTestAction(Request $request){
    $provincia_id = $request->get('provincia_id');

    $em = $this->getDoctrine()->getManager();
    $provincia = $em->getRepository('BackendBundle:DbMunicipio')->findByProvinceId($provincia_id);

    return new JsonResponse($provincia);
}

    我在实体中创建 findByProvinceId 函数作为新的存储库类型类，在其中添加我的新函数以进行搜索。它返回一个包含我正在寻找的 DbMunicipio 实体的数组。

    class DbMunicipioRepository extends EntityRepository{

public function findByProvinceId($provincia_id){

    $query = $this->getEntityManager()->createQuery("
        SELECT muni
        FROM BackendBundle:DbMunicipio muni
        LEFT JOIN muni.provincia provin
        WHERE provin.id = :provincia_id
    ")->setParameter('provincia_id', $provincia_id);

    return $query->getArrayResult();
} 
}

    和 AJAX 代码。

    $(document).ready(function () {
$(".class_select_provincia").change(function(){
    var data = {
        provincia_id: $(this).val()
    };

    $.ajax({
        type: 'POST',
        url: URL+'/municipio-test',
        data: data,
        success: function(data) {

            var $muni_selector = $('.class_select_municipio');
            alert(data);
            $muni_selector.html('<option>Ciudad</option>');

            for (var i=0, total = data.length; i < total; i++) {
                $muni_selector.append('<option value="' + data[i].id + '">' + data[i].municipio + '</option>');
            }
        }
    });
});
});
    • 0