至少对我来说,我有一个小小的挑战,但我还没有解决。你能帮我解决一下吗?
实际上我的问题包括两个,我不能将它们分成不同的问题。
我安装了Symfony2(2.3.1)。这是我的实体:
类别:
// src/Acme/DemoBundle/Entity/Category.php
namespace Acme\DemoBundle\Entity;
use Gedmo\Mapping\Annotation as Gedmo;
use Doctrine\ORM\Mapping as ORM;
/**
* @Gedmo\Tree(type="nested")
* @ORM\Table(name="categories")
* use repository for handy tree functions
* @ORM\Entity(repositoryClass="Gedmo\Tree\Entity\Repository\NestedTreeRepository")
*/
class Category
{
/**
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue
*/
private $id;
/**
* @Gedmo\Translatable
* @ORM\Column(name="name", type="string", length=64)
*/
private $name;
/**
* @Gedmo\TreeLeft
* @ORM\Column(name="lft", type="integer")
*/
private $lft;
/**
* @Gedmo\TreeLevel
* @ORM\Column(name="lvl", type="integer")
*/
private $lvl;
/**
* @Gedmo\TreeRight
* @ORM\Column(name="rgt", type="integer")
*/
private $rgt;
/**
* @Gedmo\TreeRoot
* @ORM\Column(name="root", type="integer", nullable=true)
*/
private $root;
/**
* @Gedmo\TreeParent
* @ORM\ManyToOne(targetEntity="Category", inversedBy="children")
* @ORM\JoinColumn(name="parent_id", referencedColumnName="id", onDelete="CASCADE")
*/
private $parent;
/**
* @ORM\OneToMany(targetEntity="Category", mappedBy="parent")
* @ORM\OrderBy({"lft" = "ASC"})
*/
private $children;
档案:
// src/Acme/DemoBundle/Entity/Item.php
namespace Acme\DemoBundle\Entity;
use DoctrineExtensions\Taggable\Taggable;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\Collection;
/**
* Item entity
*
* @ORM\Table(name="items")
* @ORM\HasLifecycleCallbacks
* @ORM\Entity
*/
class Item implements Taggable
{
/**
* @ORM\Id
* @ORM\Column(type="integer")
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @ORM\Column(name="name", type="string", length=64, nullable=true)
*/
protected $name;
/**
* @ORM\ManyToMany(targetEntity="Category", inversedBy="items")
* @ORM\JoinColumn(name="category_id", referencedColumnName="id"),
* inverseJoinColumn=(name="item_id", referencedColumnName="id")
*
**/
protected $categories;
public function getCategories(){
return $this->categories;
}
public function setCategories($categories){
$this->categories = $categories;
return $this->categories;
}
,我的表单AddItemForm:
// src/Acme/DemoBundle/Controller/ItemController.php
namespace Acme\DemoBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
use Doctrine\ORM\EntityRepository;
use Symfony\Component\Validator\Constraints\Collection;
/**
* Add item form
*
*/
class AddModelForm extends AbstractType
{ public function buildForm(FormBuilderInterface $builder, array $options) {
$builder->add('categories', 'collection', array(
'type' => 'entity',
'allow_add' => true,
'allow_delete' => true,
'prototype' => true,
'show_legend' => false,
'data' => array(''),
'widget_add_btn' => array('label' => _('Добавить категорию')),
'options' => array(
'widget_control_group' => false,
'label_render' => false,
'class' => 'AcmeDemoBundle:Category',
'query_builder' => function(EntityRepository $er) {
return $er->createQueryBuilder('c')
->where('c.lvl = 0')
->orderBy('c.id', 'ASC');
},
'property' => 'name',
'empty_value' => _('Choose category'),
),
)
);
}
}
和带有简单代码的控制器ItemController:
// src/Acme/DemoBundle/Controller/ItemController.php
...
public function editAction($itemId) {
$item= $em->getRepository('AcmeDemoBundle:Item')
->findOneById($itemId);
$form = $this->createForm(new AddItemForm(), $item);
}
public function addAction() {
$item = new Item();
$form = $this->createForm(new AddItemForm(), $item);
}
...
我的类别包含子类别和子子类别等...因为它是在嵌套树教条扩展中实现的。 我想要实现的目标是什么:
1)当我添加新项目时,我会看到此视图并出现此行为:http://clip2net.com/s/5jcaix(镜像:https://dl.dropboxusercontent.com/u/31477552/symfony2_form_challenge.png)
现在我只实现了一个类别,其中父类加载为{{ form.widget(form.categories) }}
,子类加载了jquery。我不太喜欢我的临时解决方案。这就是我在这种情况下要求最佳实践的原因。可能我不需要重新发明轮子。
2)当我去编辑现有项目时,我想将类别数据传输到表单,以显示我们在添加步骤中的结果。使用单个“实体”类型或只是普通类型的映射很容易,并且在Symfony2中自动完成(或者您可以在默认选项中指定“数据类”)。但是如何在我的情况下实现它呢?通过实体集合+正确的视图显示?
对某些人来说,这对我来说既有趣也有挑战,你可以帮我解决这个问题。