Usage

* * If you want to implement a FileField into a form element, you need to pass it an array of source data. * * * class ExampleForm_Controller extends Page_Controller { * * public function Form() { * $fields = new FieldList( * new TextField('MyName'), * new FileField('MyFile') * ); * $actions = new FieldList( * new FormAction('doUpload', 'Upload file') * ); * $validator = new RequiredFields(array('MyName', 'MyFile')); * * return new Form($this, 'Form', $fields, $actions, $validator); * } * * function doUpload($data, $form) { * $file = $data['MyFile']; * $content = file_get_contents($file['tmp_name']); * // ... process content * } * } * * * @package forms * @subpackage fields-files */ class FileField extends FormField { protected $template = 'FileField'; /** * Restrict filesize for either all filetypes * or a specific extension, with extension-name * as array-key and the size-restriction in bytes as array-value. * * @deprecated 2.5 * @var array */ public $allowedMaxFileSize = array(); /** * @var array Collection of extensions. * Extension-names are treated case-insensitive. * * Example: * * array("jpg","GIF") * * * @deprecated 2.5 * @var array */ public $allowedExtensions = array(); /** * Flag to automatically determine and save a has_one-relationship * on the saved record (e.g. a "Player" has_one "PlayerImage" would * trigger saving the ID of newly created file into "PlayerImageID" * on the record). * * @var boolean */ public $relationAutoSetting = true; /** * Upload object (needed for validation * and actually moving the temporary file * created by PHP). * * @var Upload */ protected $upload; /** * Partial filesystem path relative to /assets directory. * Defaults to 'Uploads'. * * @var string */ protected $folderName = 'Uploads'; /** * Create a new file field. * * @param string $name The internal field name, passed to forms. * @param string $title The field label. * @param int $value The value of the field. */ function __construct($name, $title = null, $value = null) { if(count(func_get_args()) > 3) Deprecation::notice('3.0', 'Use setRightTitle() and setFolderName() instead of constructor arguments'); $this->upload = new Upload(); parent::__construct($name, $title, $value); } public function Field($properties = array()) { $properties = array_merge($properties, array('MaxFileSize' => $this->getValidator()->getAllowedMaxFileSize())); return $this->customise($properties)->renderWith($this->getTemplate()); } function getAttributes() { return array_merge( parent::getAttributes(), array('type' => 'file') ); } public function saveInto(DataObjectInterface $record) { if(!isset($_FILES[$this->name])) return false; $fileClass = File::get_class_for_file_extension(pathinfo($_FILES[$this->name]['name'], PATHINFO_EXTENSION)); if($this->relationAutoSetting) { // assume that the file is connected via a has-one $hasOnes = $record->has_one($this->name); // try to create a file matching the relation $file = (is_string($hasOnes)) ? Object::create($hasOnes) : new $fileClass(); } else { $file = new $fileClass(); } $this->upload->loadIntoFile($_FILES[$this->name], $file, $this->folderName); if($this->upload->isError()) return false; $file = $this->upload->getFile(); if($this->relationAutoSetting) { if(!$hasOnes) return false; // save to record $record->{$this->name . 'ID'} = $file->ID; } return $this; } public function Value() { return isset($_FILES[$this->getName()]) ? $_FILES[$this->getName()] : null; } /** * Get custom validator for this field * * @param object $validator */ public function getValidator() { return $this->upload->getValidator(); } /** * Set custom validator for this field * * @param object $validator */ public function setValidator($validator) { $this->upload->setValidator($validator); return $this; } /** * @param string $folderName */ public function setFolderName($folderName) { $this->folderName = $folderName; return $this; } /** * @return string */ public function getFolderName() { return $this->folderName; } public function validate($validator) { if(!isset($_FILES[$this->name])) return true; $tmpFile = $_FILES[$this->name]; $valid = $this->upload->validate($tmpFile); if(!$valid) { $errors = $this->upload->getErrors(); if($errors) foreach($errors as $error) { $validator->validationError($this->name, $error, "validation", false); } return false; } return true; } }