angularjs – 如何使用angular symfony vichuploaderBundle上传

{{ form_start(form,{'attr': {'novalidate': 'novalidate'} }) }}
            <div class="form-group">
                <label>{{"news.lbl.file"|trans}}</label>
                {{form_widget(form.file)}}
                <lable>{{form_errors(form.file)}}</lable>
            </div>
     <div class="form-group">
                {{form_widget(form.submit)}}
            </div>
            {{ form_end(form)}}

上课

<?php

namespace BaseBundleEntity;

use DoctrineORMMapping as ORM;
use SymfonyComponentValidatorConstraints as Assert;
use SymfonyComponentHttpFoundationFileUploadedFile;

abstract class Uploader
{

    /**
     * @var integer
     *
     * @ORMColumn(name="id",type="integer")
     * @ORMId
     * @ORMGeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var string
     *
     * @ORMColumn(name="path",type="string",length=500,nullable=true)
     */
    protected $path;

    /**
     * Set imageUrl
     *
     * @param string $path
     * @return Category1
     */
    public function setPath($path)
    {
        $this->path = $path;

        return $this;
    }

    /**
     * Get path
     *
     * @return string 
     */
    public function getPath()
    {
        return $this->path;
    }

    /**
     * Get id
     *
     * @return integer 
     */
    public function getId()
    {
        return $this->id;
    }

    public function getAbsolutePath()
    {
        return null === $this->path ? null : $this->getUploadRootDir() . '/' . $this->path;
    }

    public function getWebPath()
    {
        return null === $this->path ? null : $this->getUploadDir() . '/' . $this->path;
    }

    protected function getUploadRootDir($docroot="web")
    {
// the absolute directory path where uploaded
// documents should be saved
        return __DIR__ . "/../../../../$docroot/" . $this->getUploadDir();
    }

    protected abstract function getUploadDir();

    /**
     * @AssertFile(maxSize="6000000")
     */
    protected $file;

    /**
     * Sets file.
     *
     * @param UploadedFile $file
     */
    public function setFile(UploadedFile $file = null)
    {
        $this->file = $file;
    }

    /**
     * Get file.
     *
     * @return UploadedFile
     */
    public function getFile()
    {
        return $this->file;
    }

    public function upload()
    {
        // the file property can be empty if the field is not required
        if (null === $this->getFile())
        {
            return;
        }
// use the original file name here but you should
// sanitize it at least to avoid any security issues
// move takes the target directory and then the
// target filename to move to
        $name = $this->getUploadDir() . "/" . time() . "-" . $this->getFile()->getClientOriginalName();
        $this->getFile()->move(
                $this->getUploadRootDir(),$name
        );
// set the path property to the filename where you've saved the file
        $this->path = $name;
// clean up the file property as you won't need it anymore
        $this->file = null;
    }

}

实体类

class entity extends Uploder
{

 protected function getUploadDir()
    {
         return 'dirctory name';
    }
}

并添加归档路径然后删除路径