Image upload in cake 2

public function add() {
    if ($this->request->is('post')) {
        $this->Category->create();
        //Check if image has been uploaded
        if (!empty($this->request->data['Category']['upload']['name'])) {
            $file = $this->request->data['Category']['upload'];

            $ext = substr(strtolower(strrchr($file['name'], '.')), 1);
            $arr_ext = array('jpg', 'jpeg', 'gif','png');

            if (in_array($ext, $arr_ext)) {
                move_uploaded_file($file['tmp_name'], WWW_ROOT . 'img/webimages/categories/' . $file['name']);
                //prepare the filename for database entry
                $this->request->data['Category']['image'] = $file['name'];
            }
        }

        if ($this->Category->save($this->request->data)) {
            $this->Session->setFlash(__('The category has been saved.'));
            return $this->redirect(array('action' => 'index'));
        } else {
            $this->Session->setFlash(__('The category could not be saved. Please, try again.'));
        }
    }
    $parentCategories = $this->Category->ParentCategory->find('list');
    $categoriesStatus = $this->Category->getCategoriesStatus();//model's method to get list of status
    $this->set(compact('parentCategories', 'categoriesStatus'));
}

Source: stackoverflow.com

Image upload in cake 2

   public function add() {
            if ($this->request->is('post')) {
                $this->Product->create();
                if ($this->Product->save($this->request->data)) {
                    $this->Session->setFlash(__('The product has been saved.'));
                    return $this->redirect(array('action' => 'index'));
                } else {
                    $this->Session->setFlash(__('The product could not be saved. Please, try again.'));
                }
                if(!empty($this->data))
                {
                    //Check if image has been uploaded
                    if(!empty($this->data['products']['upload']['name']))
                    {
                        $file = $this->data['products']['upload']; //put the data into a var for easy use

                        $ext = substr(strtolower(strrchr($file['name'], '.')), 1); //get the extension
                        $arr_ext = array('jpg', 'jpeg', 'gif'); //set allowed extensions

                        //only process if the extension is valid
                        if(in_array($ext, $arr_ext))
                        {
                            //do the actual uploading of the file. First arg is the tmp name, second arg is
                            //where we are putting it
                            move_uploaded_file($file['tmp_name'], WWW_ROOT . 'CakePHP/app/webroot/img/' . $file['name']);

                            //prepare the filename for database entry
                            $this->data['products']['product_image'] = $file['name'];
                        }
                    }

                    //now do the save
                    $this->products->save($this->data) ;
                }
            }

        }

Source: stackoverflow.com

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