symfony 2 jquery引导标签输入答案

【问题标题】：symfony 2 jquery bootstrap tag inputsymfony 2 jquery引导标签输入
【发布时间】：2015-10-07 01:36:46
【问题描述】：

我有两个实体：多对多关系中的 BlogPost 和关键字。我必须使用表单同时在数据库中添加 BlogPost 和关键字。我想使用像Bootstrap tagsinput 这样的jquery 标签输入插件在输入中插入关键字。请问我该如何实施？有我的实体：

class BlogPost
{
    //...
    /**
    * @var \Doctrine\Common\Collections\ArrayCollection
    * @ORM\ManyToMany(targetEntity="ESGISGabon\PostBundle\Entity\Keyword", cascade={"persist"})
    */
    private $keywords;

    public function __construct()
    {
        $this->keywords = new \Doctrine\Common\Collections\ArrayCollection();
    }

    public function getKeywords()
    {
        return $this->keywords;
    }
}


class Keyword
{
    /**
    * @var string
    * @ORM\Column(type="string", name="category_title", nullable=false, length=30)
    */
    protected $title;

    public function getTitle()
    {
        return $this->title;
    }
}

【问题讨论】：

实体（模型）和设计（视图）之间没有联系...

标签： jquery forms symfony tags

【解决方案1】：

我终于找到了解决问题的方法。我必须使用Data transformer 和自定义form field type。我还使用 FPNTagBundle 及其 tagManager。我就是这样做的：

class TagsTransformer implements DataTransformerInterface
{

    private $tagManager;

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

    /**
     * Transforms a value from the original representation to a transformed representation.
     *
     * By convention, transform() should return an empty string if NULL is
     * passed.
     *
     * @param mixed $value The value in the original representation
     *
     * @return mixed The value in the transformed representation
     *
     * @throws TransformationFailedException When the transformation fails.
     */
    public function transform($tags)
    {
        if(!is_null($tags))
            return join(', ', $tags->toArray());

        return '';
    }

    /**
     * Transforms a value from the transformed representation to its original
     * representation.
     *
     * By convention, reverseTransform() should return NULL if an empty string
     * is passed.
     *
     * @param mixed $value The value in the transformed representation
     *
     * @return mixed The value in the original representation
     *
     * @throws TransformationFailedException When the transformation fails.
     */
    public function reverseTransform($tags)
    {
        if(is_null($tags) || !$tags)
            return;

        return $this->tagManager->loadOrCreateTags(
            $this->tagManager->splitTagNames($tags)
        );
    }
}


class TagType extends AbstractType
{

    protected $tagManager;

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

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $transformer = new TagsTransformer($this->tagManager);
        $builder->addModelTransformer($transformer);
    }


    public function getName()
    {
        return 'tags';
    }

    public function getParent()
    {
        return 'text';
    }
}

最后我的表格是这样的：

class CorporatePostType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('keywords', 'tags');
    }

    //.....
}

您必须为自定义表单字段类型创建自定义模板，以便集成 Bootstrap 标记输入。

【讨论】：