php - Uploading and Removing multiple files with Symfony2 -

i wonder how can create multiple file uploading without using collection field type. thing is: have class , class need link images. don't need descriptions , other kind of information in these images, create additional field in main entity. add

->add('files', 'file', array(         'label' => 'images',         'required' => false,         'attr' => array(             'accept' => 'image/*',             'multiple' => true         ) 

in it's form class , this:

    /**  * @orm\prepersist()  * @orm\preupdate()  */ public function preupload() {     if (!empty($this->files)) {         if (!empty($this->images)) {             $this->insertingkey = $this->images->count();         }         foreach ($this->files $file) {             $imagename = uniqid('entity_') . '_' . date('y-m-d_h:i') .  '.' . $file->guessextension();             if ($this->images === null) {                 $this->images = new arraycollection();             }             $this->images->add($imagename);         }     } }  /**  * @orm\postpersist()  * @orm\postupdate()  */ public function upload() {     if (empty($this->files)) {         return;     }      if ($this->insertingkey) {         foreach ($this->files $file) {             $file->move($this->getuploadrootdir(), $this->images[ $this->insertingkey++ ]);         }     } else {         foreach ($this->files $key => $file) {             $file->move($this->getuploadrootdir(), $this->images[ $key ]);         }     } } 

as doctrine events in entity class, , of course make file filed work , array. problem - can't add images second time. instance, when i've upload images , decided upload more - upload physically(i can see them in project directory), nothing's changed on page.

could give me advice guys? or maybe there other methods uploading many files , having 1 form field @ same time? great thanks.

i've solved problem way:

this code entity

 /**  * @orm\prepersist()  * @orm\preupdate()  */ public function preupload() {     if ($this->files[0] != null || !$this->files) {         if (!empty($this->images)) {             $this->insertingkey = count($this->images);         }         foreach ($this->files $file) {             $imagename = uniqid('pref_') . '_' . date('y-m-d_h:i') .  '.' . $file->guessextension();             if ($this->images === null) {                 $this->images = array();             }             $this->images[] = $imagename;         }     } }  /**  * @orm\postpersist()  * @orm\postupdate()  */ public function upload() {     if ($this->files[0] == null || !$this->files) {         return;     }      if ($this->insertingkey) {         foreach ($this->files $file) {             $file->move($this->getuploadrootdir(), $this->images[ $this->insertingkey++ ]);         }     } else {         foreach ($this->files $key => $file) {             $file->move($this->getuploadrootdir(), $this->images[ $key ]);         }     } }  public function getimageswithabsolutepath() {     if (!empty($this->images)) {         $images = array();         foreach ($this->images $image) {             $images[$image] = $this->getuploadrootdir() . '/' . $image;         }          return $images;     }      return null; }  public function getimageswithrelativepath() {     if (!empty($this->images)) {         $images = array();         foreach ($this->images $image) {             $images[$image] = $this->getuploaddir() . '/' . $image;         }          return $images;     }      return null; }  public function getuploadrootdir() {     return __dir__ . '/../../../../web/' . $this->getuploaddir(); }  public function getuploaddir() {     return 'images/venue'; }  public function removeimage($imagename) {     if ($this->images && in_array($imagename, $this->images)) {         $key = array_search($imagename, $this->images);         unset($this->images[$key]);         if (file_exists($this->getuploadrootdir() . '/' . $imagename)) {             unlink($this->getuploadrootdir() . '/' . $imagename);         }          $this->images = array_values($this->images);     } } 

this piece of code controller:

if ($request->getmethod() === "post") {         $form->bind($request);         if ($form->isvalid()) {             $deleteimages = $request->request->get('delete_thumb', array());             if (!empty($deleteimages)) {                 foreach ($request->request->get('delete_thumb') $image) {                     $imagename = substr($image, strrpos($image, '/') + 1);                     $venue->removeimage($imagename);                 }             }             $this->persist($venue, true);             if ($request->request->get('submit-and-quit') !== null) {                 return $this->redirecttoroute('admin_list');             }              return array('form' => $form->createview());         }     }