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UploadControl.php
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UploadControl.php
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<?php
/**
* This file is part of the Nette Framework (https://nette.org)
* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
*/
declare(strict_types=1);
namespace Nette\Forms\Controls;
use Nette;
use Nette\Forms;
use Nette\Http\FileUpload;
/**
* Text box and browse button that allow users to select a file to upload to the server.
*/
class UploadControl extends BaseControl
{
/** validation rule */
public const VALID = ':uploadControlValid';
/**
* @param string|object $label
*/
public function __construct($label = null, bool $multiple = false)
{
parent::__construct($label);
$this->control->type = 'file';
$this->control->multiple = $multiple;
$this->setOption('type', 'file');
$this->addRule([$this, 'isOk'], Forms\Validator::$messages[self::VALID]);
$this->monitor(Forms\Form::class, function (Forms\Form $form): void {
if (!$form->isMethod('post')) {
throw new Nette\InvalidStateException('File upload requires method POST.');
}
$form->getElementPrototype()->enctype = 'multipart/form-data';
});
}
/**
* Loads HTTP data.
*/
public function loadHttpData(): void
{
$this->value = $this->getHttpData(Nette\Forms\Form::DATA_FILE);
if ($this->value === null) {
$this->value = new FileUpload(null);
}
}
/**
* Returns HTML name of control.
*/
public function getHtmlName(): string
{
return parent::getHtmlName() . ($this->control->multiple ? '[]' : '');
}
/**
* @return static
* @internal
*/
public function setValue($value)
{
return $this;
}
/**
* Has been any file uploaded?
*/
public function isFilled(): bool
{
return $this->value instanceof FileUpload
? $this->value->getError() !== UPLOAD_ERR_NO_FILE // ignore null object
: (bool) $this->value;
}
/**
* Have been all files succesfully uploaded?
*/
public function isOk(): bool
{
return $this->value instanceof FileUpload
? $this->value->isOk()
: $this->value && array_reduce($this->value, function (bool $carry, FileUpload $fileUpload): bool {
return $carry && $fileUpload->isOk();
}, true);
}
/**
* @return static
*/
public function addRule($validator, $errorMessage = null, $arg = null)
{
if ($validator === Forms\Form::IMAGE) {
$this->control->accept = implode(FileUpload::IMAGE_MIME_TYPES, ', ');
} elseif ($validator === Forms\Form::MIME_TYPE) {
$this->control->accept = implode((array) $arg, ', ');
}
return parent::addRule($validator, $errorMessage, $arg);
}
}