1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (https://nette.org)
  5:  * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
  6:  */
  7: 
  8: namespace Nette\Forms\Controls;
  9: 
 10: use Nette;
 11: use Nette\Forms;
 12: use Nette\Http\FileUpload;
 13: 
 14: 
 15: /**
 16:  * Text box and browse button that allow users to select a file to upload to the server.
 17:  */
 18: class UploadControl extends BaseControl
 19: {
 20:     /** validation rule */
 21:     const VALID = ':uploadControlValid';
 22: 
 23: 
 24:     /**
 25:      * @param  string|object
 26:      * @param  bool
 27:      */
 28:     public function __construct($label = null, $multiple = false)
 29:     {
 30:         parent::__construct($label);
 31:         $this->control->type = 'file';
 32:         $this->control->multiple = (bool) $multiple;
 33:         $this->setOption('type', 'file');
 34:         $this->addCondition(Forms\Form::FILLED)
 35:             ->addRule([$this, 'isOk'], Forms\Validator::$messages[self::VALID]);
 36:     }
 37: 
 38: 
 39:     /**
 40:      * This method will be called when the component (or component's parent)
 41:      * becomes attached to a monitored object. Do not call this method yourself.
 42:      * @param  Nette\ComponentModel\IComponent
 43:      * @return void
 44:      */
 45:     protected function attached($form)
 46:     {
 47:         if ($form instanceof Nette\Forms\Form) {
 48:             if (!$form->isMethod('post')) {
 49:                 throw new Nette\InvalidStateException('File upload requires method POST.');
 50:             }
 51:             $form->getElementPrototype()->enctype = 'multipart/form-data';
 52:         }
 53:         parent::attached($form);
 54:     }
 55: 
 56: 
 57:     /**
 58:      * Loads HTTP data.
 59:      * @return void
 60:      */
 61:     public function loadHttpData()
 62:     {
 63:         $this->value = $this->getHttpData(Nette\Forms\Form::DATA_FILE);
 64:         if ($this->value === null) {
 65:             $this->value = new FileUpload(null);
 66:         }
 67:     }
 68: 
 69: 
 70:     /**
 71:      * Returns HTML name of control.
 72:      * @return string
 73:      */
 74:     public function getHtmlName()
 75:     {
 76:         return parent::getHtmlName() . ($this->control->multiple ? '[]' : '');
 77:     }
 78: 
 79: 
 80:     /**
 81:      * @return static
 82:      * @internal
 83:      */
 84:     public function setValue($value)
 85:     {
 86:         return $this;
 87:     }
 88: 
 89: 
 90:     /**
 91:      * Has been any file uploaded?
 92:      * @return bool
 93:      */
 94:     public function isFilled()
 95:     {
 96:         return $this->value instanceof FileUpload
 97:             ? $this->value->getError() !== UPLOAD_ERR_NO_FILE // ignore null object
 98:             : (bool) $this->value;
 99:     }
100: 
101: 
102:     /**
103:      * Have been all files succesfully uploaded?
104:      * @return bool
105:      */
106:     public function isOk()
107:     {
108:         return $this->value instanceof FileUpload
109:             ? $this->value->isOk()
110:             : $this->value && array_reduce($this->value, function ($carry, $fileUpload) {
111:                 return $carry && $fileUpload->isOk();
112:             }, true);
113:     }
114: }
115: