746 lines
24 KiB
PHP
746 lines
24 KiB
PHP
<?php
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/**
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* Field for uploading single or multiple files of all types, including images.
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* <b>NOTE: this Field will call write() on the supplied record</b>
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*
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* <b>Features (some might not be avaliable to old browsers):</b>
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*
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* - File Drag&Drop support
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* - Progressbar
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* - Image thumbnail/file icons even before upload finished
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* - Saving into relations
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* - Edit file
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* - allowedExtensions is by default File::$allowed_extensions<li>maxFileSize the vaule of min(upload_max_filesize, post_max_size) from php.ini
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*
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* @example <code>
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* $UploadField = new UploadField('myFiles', 'Please upload some images <span>(max. 5 files)</span>');
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* $UploadField->getValidator()->setAllowedExtensions(array('jpg', 'jpeg', 'png', 'gif'));
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* $UploadField->setConfig('allowedMaxFileNumber', 5);
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* </code>
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*
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* @author Zauberfisch
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* @package sapphire
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* @subpackage forms
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*/
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class UploadField extends FileField {
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/**
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* @var array
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*/
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public static $allowed_actions = array(
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'upload',
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'handleItem'
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);
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/**
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* @var array
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*/
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public static $url_handlers = array(
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'item/$ID' => 'handleItem',
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'$Action!' => '$Action',
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);
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/**
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* @var String
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*/
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protected $template = 'UploadField';
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/**
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* @var String
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*/
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protected $templateFileButtons = 'UploadField_FileButtons';
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/**
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* @var String
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*/
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protected $templateFileEdit = 'UploadField_FileEdit';
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/**
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* @var DataObject
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*/
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protected $record;
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/**
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* @var SS_List
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*/
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protected $items;
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/**
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* Config for this field used in both, php and javascript (will be merged into the config of the javascript file upload plugin)
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* @var array
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*/
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protected $config = array(
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/**
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* @var boolean
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*/
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'autoUpload' => true,
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/**
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* php validation of allowedMaxFileNumber only works when a db relation is avaliable, set to null to allow unlimited
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* if record has a has_one and allowedMaxFileNumber is null, it will be set to 1
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* @var int
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*/
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'allowedMaxFileNumber' => null,
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/**
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* @var int
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*/
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'previewMaxWidth' => 80,
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/**
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* @var int
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*/
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'previewMaxHeight' => 60,
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/**
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* javascript template used to display uploading files
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* @see javascript/UploadField_uploadtemplate.js
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* @var string
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*/
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'uploadTemplateName' => 'ss-uploadfield-uploadtemplate',
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/**
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* javascript template used to display already uploaded files
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* @see javascript/UploadField_downloadtemplate.js
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* @var string
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*/
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'downloadTemplateName' => 'ss-uploadfield-downloadtemplate',
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/**
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* FieldList $fields or string $name (of a method on File to provide a fields) for the EditForm
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* @example 'getCMSFields'
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* @var FieldList|string
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*/
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'fileEditFields' => null,
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/**
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* FieldList $actions or string $name (of a method on File to provide a actions) for the EditForm
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* @example 'getCMSActions'
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* @var FieldList|string
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*/
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'fileEditActions' => null,
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/**
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* Validator (eg RequiredFields) or string $name (of a method on File to provide a Validator) for the EditForm
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* @example 'getCMSValidator'
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* @var string
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*/
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'fileEditValidator' => null
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);
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/**
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* @param string $name The internal field name, passed to forms.
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* @param string $title The field label.
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* @param SS_List $items If no items are defined, the field will try to auto-detect an existion relation on {@link $record},
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* with the same name as the field name.
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* @param Form $form Reference to the container form
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*/
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public function __construct($name, $title = null, SS_List $items = null) {
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// TODO thats the first thing that came to my head, feel free to change it
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$this->addExtraClass('ss-upload'); // class, used by js
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$this->addExtraClass('ss-uploadfield'); // class, used by css for uploadfield only
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parent::__construct($name, $title);
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if($items) $this->setItems($items);
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$this->getValidator()->setAllowedExtensions(array_filter(File::$allowed_extensions)); // filter out '' since this would be a regex problem on JS end
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$this->getValidator()->setAllowedMaxFileSize(min(File::ini2bytes(ini_get('upload_max_filesize')), File::ini2bytes(ini_get('post_max_size')))); // get the lower max size
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}
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/**
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* Set name of template used for Buttons on each file (replace, edit, remove, delete) (without path or extension)
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*
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* @param String
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*/
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public function setTemplateFileButtons($template) {
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$this->templateFileButtons = $template;
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return $this;
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}
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/**
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* @return String
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*/
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public function getTemplateFileButtons() {
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return $this->templateFileButtons;
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}
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/**
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* Set name of template used for the edit (inline & popup) of a file file (without path or extension)
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*
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* @param String
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*/
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public function setTemplateFileEdit($template) {
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$this->templateFileEdit = $template;
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return $this;
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}
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/**
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* @return String
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*/
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public function getTemplateFileEdit() {
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return $this->templateFileEdit;
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}
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/**
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* Force a record to be used as "Parent" for uploaded Files (eg a Page with a has_one to File)
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* @param DataOjbect $record
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*/
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public function setRecord($record) {
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$this->record = $record;
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return $this;
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}
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/**
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* Get the record to use as "Parent" for uploaded Files (eg a Page with a has_one to File) If none is set, it will use Form->getRecord() or Form->Controller()->data()
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* @return DataObject
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*/
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public function getRecord() {
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if (!$this->record && $this->form) {
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if ($this->form->getRecord() && is_a($this->form->getRecord(), 'DataObject')) {
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$this->record = $this->form->getRecord();
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} elseif ($this->form->Controller() && $this->form->Controller()->hasMethod('data')
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&& $this->form->Controller()->data() && is_a($this->form->Controller()->data(), 'DataObject')) {
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$this->record = $this->form->Controller()->data();
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}
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}
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return $this->record;
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}
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/**
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* @param SS_List $items
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*/
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public function setItems(SS_List $items) {
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$this->items = $items;
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return $this;
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}
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/**
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* @return SS_List
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*/
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public function getItems() {
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$name = $this->getName();
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if (!$this->items || !$this->items->exists()) {
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$record = $this->getRecord();
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$this->items = array();
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// Try to auto-detect relationship
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if ($record && $record->exists()) {
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if ($record->has_many($name) || $record->many_many($name)) {
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// Ensure relationship is cast to an array, as we can't alter the items of a DataList/RelationList (see below)
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$this->items = $record->{$name}()->toArray();
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} elseif($record->has_one($name)) {
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$item = $record->{$name}();
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if ($item && $item->exists())
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$this->items = array($record->{$name}());
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}
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}
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$this->items = new ArrayList($this->items);
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// hack to provide $UploadFieldThumbnailURL, $hasRelation and $UploadFieldEditLink in template for each file
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if ($this->items->exists()) {
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foreach ($this->items as $i=>$file) {
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$this->items[$i] = $this->customiseFile($file);
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if(!$file->canView()) unset($this->items[$i]); // Respect model permissions
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}
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}
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}
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return $this->items;
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}
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/**
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* Hack to add some Variables and a dynamic template to a File
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* @param File $file
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* @param bool [$hasRelation] has this file a relation to the record the file is on?
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* @return ViewableData_Customised
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*/
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protected function customiseFile(File $file, $hasRelation = true) {
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$file = $file->customise(array(
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'UploadFieldHasRelation' => $hasRelation,
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'UploadFieldThumbnailURL' => $this->getThumbnailURLForFile($file),
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'UploadFieldRemoveLink' => $this->getItemHandler($file->ID)->RemoveLink(),
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'UploadFieldDeleteLink' => $this->getItemHandler($file->ID)->DeleteLink(),
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'UploadFieldEditLink' => $this->getItemHandler($file->ID)->EditLink()
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));
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// we do this in a second customise to have the access to the previous customisations
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return $file->customise(array(
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'UploadFieldFileButtons' => $file->renderWith($this->getTemplateFileButtons())
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));
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}
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/**
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* @param string $key
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* @param mixed $val
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*/
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public function setConfig($key, $val) {
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$this->config[$key] = $val;
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return $this;
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}
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/**
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* @param string $key
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* @return mixed
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*/
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public function getConfig($key) {
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return $this->config[$key];
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}
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/**
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* @param File $file
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* @return string
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*/
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protected function getThumbnailURLForFile(File $file) {
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if ($file && $file->exists() && file_exists(Director::baseFolder() . '/' . $file->getFilename())) {
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if ($file->hasMethod('getThumbnail')) {
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return $file->getThumbnail($this->getConfig('previewMaxWidth'), $this->getConfig('previewMaxHeight'))->getURL();
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} elseif ($file->hasMethod('getThumbnailURL')) {
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return $file->getThumbnailURL($this->getConfig('previewMaxWidth'), $this->getConfig('previewMaxHeight'));
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} elseif ($file->hasMethod('SetRatioSize')) {
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return $file->SetRatioSize($this->getConfig('previewMaxWidth'), $this->getConfig('previewMaxHeight'))->getURL();
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} else {
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return $file->Icon();
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}
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}
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return false;
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}
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public function Field() {
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$record = $this->getRecord();
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$name = $this->getName();
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if ($record && $record->exists()) {
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if (!$record->has_many($name) && !$record->many_many($name) && !$this->getConfig('allowedMaxFileNumber') &&
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((substr($name, -2) === 'ID' && $record->has_one(substr($name, 0, -2))) || $record->has_one($name))) {
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// if there is a has_one relation with that name on the record and allowedMaxFileNumber has not been set, its wanted to be 1
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$this->setConfig('allowedMaxFileNumber', 1);
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}
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}
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Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery.js');
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Requirements::javascript(SAPPHIRE_DIR . '/javascript/jquery_improvements.js');
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Requirements::javascript(THIRDPARTY_DIR . '/jquery-ui/jquery-ui.js');
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Requirements::javascript(THIRDPARTY_DIR . '/jquery-entwine/dist/jquery.entwine-dist.js');
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Requirements::javascript(SAPPHIRE_DIR . '/javascript/i18n.js');
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Requirements::javascript(SAPPHIRE_ADMIN_DIR . '/javascript/ssui.core.js');
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Requirements::combine_files('uploadfield.js', array(
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THIRDPARTY_DIR . '/javascript-templates/tmpl.js',
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THIRDPARTY_DIR . '/javascript-loadimage/load-image.js',
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THIRDPARTY_DIR . '/jquery-fileupload/jquery.iframe-transport.js',
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THIRDPARTY_DIR . '/jquery-fileupload/cors/jquery.xdr-transport.js',
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THIRDPARTY_DIR . '/jquery-fileupload/jquery.fileupload.js',
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THIRDPARTY_DIR . '/jquery-fileupload/jquery.fileupload-ui.js',
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SAPPHIRE_DIR . '/javascript/UploadField_uploadtemplate.js',
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SAPPHIRE_DIR . '/javascript/UploadField_downloadtemplate.js',
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SAPPHIRE_DIR . '/javascript/UploadField.js',
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));
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Requirements::css(THIRDPARTY_DIR . '/jquery-ui-themes/smoothness/jquery-ui.css'); // TODO hmmm, remove it?
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Requirements::css(SAPPHIRE_DIR . '/css/UploadField.css');
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$config = array(
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'url' => $this->Link('upload'),
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'acceptFileTypes' => '.+$',
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'maxNumberOfFiles' => $this->getConfig('allowedMaxFileNumber')
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);
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if (count($this->getValidator()->getAllowedExtensions())) {
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$allowedExtensions = $this->getValidator()->getAllowedExtensions();
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$config['acceptFileTypes'] = '(\.|\/)(' . implode('|', $allowedExtensions) . ')$';
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$config['errorMessages']['acceptFileTypes'] = sprintf(_t(
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'File.INVALIDEXTENSION',
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'Extension is not allowed (valid: %s)'
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), wordwrap(implode(', ', $allowedExtensions)));
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}
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if ($this->getValidator()->getAllowedMaxFileSize()) {
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$config['maxFileSize'] = $this->getValidator()->getAllowedMaxFileSize();
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$config['errorMessages']['maxFileSize'] = sprintf(_t(
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'File.TOOLARGE',
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'Filesize is too large, maximum %s allowed.'
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), File::format_size($config['maxFileSize']));
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}
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if ($config['maxNumberOfFiles'] > 1) {
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$config['errorMessages']['maxNumberOfFiles'] = sprintf(_t(
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'UploadField.MAXNUMBEROFFILES',
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'Max number of %s file(s) exceeded.'
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), $config['maxNumberOfFiles']);
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}
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$configOverwrite = array();
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if (is_numeric($config['maxNumberOfFiles']) && $this->getItems()->count()) {
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$configOverwrite['maxNumberOfFiles'] = $config['maxNumberOfFiles'] - $this->getItems()->count();
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}
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$config = array_merge($config, $this->config, $configOverwrite);
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return $this->customise(array(
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'configString' => str_replace('"', "'", Convert::raw2json($config)),
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'config' => new ArrayData($config),
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'multiple' => $config['maxNumberOfFiles'] !== 1,
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'displayInput' => (!isset($configOverwrite['maxNumberOfFiles']) || $configOverwrite['maxNumberOfFiles'])
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))->renderWith($this->getTemplate());
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}
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/**
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* Validation method for this field, called when the entire form is validated
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*
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* @param $validator
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* @return Boolean
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*/
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public function validate($validator) {
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return true;
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}
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/**
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* @param SS_HTTPRequest $request
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* @return UploadField_ItemHandler
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*/
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public function handleItem(SS_HTTPRequest $request) {
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return $this->getItemHandler($request->param('ID'));
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}
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/**
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* @param int $itemID
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* @return UploadField_ItemHandler
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*/
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public function getItemHandler($itemID) {
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return Object::create('UploadField_ItemHandler', $this, $itemID);
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}
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/**
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* Action to handle upload of a single file
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*
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* @param SS_HTTPRequest $request
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* @return string json
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*/
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public function upload(SS_HTTPRequest $request) {
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if($this->isDisabled() || $this->isReadonly()) return $this->httpError(403);
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// Protect against CSRF on destructive action
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$token = $this->getForm()->getSecurityToken();
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if(!$token->checkRequest($request)) return $this->httpError(400);
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$name = $this->getName();
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$tmpfile = $request->postVar($name);
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$record = $this->getRecord();
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if (!$tmpfile) {
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$return = array('error' => _t('UploadField.FIELDNOTSET', 'File information not found'));
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} else {
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$return = array(
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'name' => $tmpfile['name'],
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'size' => $tmpfile['size'],
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'type' => $tmpfile['type'],
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'error' => $tmpfile['error']
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);
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}
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if (!$return['error'] && $record && $record->exists()) {
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$tooManyFiles = false;
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if ($this->getConfig('allowedMaxFileNumber') && ($record->has_many($name) || $record->many_many($name))) {
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if(!$record->isInDB()) $record->write();
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$tooManyFiles = $record->{$name}()->count() >= $this->getConfig('allowedMaxFileNumber');
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} elseif(substr($name, -2) === 'ID' && $record->has_one(substr($name, 0, -2))) {
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$tooManyFiles = $record->{substr($name, 0, -2)}() && $record->{substr($name, 0, -2)}()->exists();
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} elseif($record->has_one($name)) {
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$tooManyFiles = $record->{$name}() && $record->{$name}()->exists();
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}
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if ($tooManyFiles) {
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if(!$this->getConfig('allowedMaxFileNumber')) $this->setConfig('allowedMaxFileNumber', 1);
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$return['error'] = sprintf(_t(
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'UploadField.MAXNUMBEROFFILES',
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'Max number of %s file(s) exceeded.'
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), $this->getConfig('allowedMaxFileNumber'));
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}
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}
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if (!$return['error']) {
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try {
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$this->upload->loadIntoFile($tmpfile, null, $this->folderName);
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} catch (Exception $e) {
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// we shouldn't get an error here, but just in case
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$return['error'] = $e->getMessage();
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}
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if (!$return['error']) {
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if ($this->upload->isError()) {
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$return['error'] = implode(' '.PHP_EOL, $this->upload->getErrors());
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} else {
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$file = $this->upload->getFile();
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$file->OwnerID = (Member::currentUser() ? Member::currentUser()->ID : 0);
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$file->write();
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$hasRelation = false;
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if ($record && $record->exists()) {
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if ($record->has_many($name) || $record->many_many($name)) {
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if(!$record->isInDB()) $record->write();
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$record->{$name}()->add($file);
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$hasRelation = true;
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} elseif(substr($name, -2) === 'ID' && $record->has_one(substr($name, 0, -2))) {
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$record->{$name} = $file->ID;
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$record->write();
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$hasRelation = true;
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} elseif($record->has_one($name)) {
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$record->{$name . 'ID'} = $file->ID;
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$record->write();
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$hasRelation = true;
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}
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}
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$file = $this->customiseFile($file, $hasRelation);
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$return = array_merge($return, array(
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'id' => $file->ID,
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'name' => $file->getTitle() . '.' . $file->getExtension(),
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'url' => $file->getURL(),
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'thumbnail_url' => $file->UploadFieldThumbnailURL,
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'edit_url' => $file->UploadFieldEditLink,
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'size' => $file->getAbsoluteSize(),
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'buttons' => $file->UploadFieldFileButtons
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));
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}
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}
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}
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$response = new SS_HTTPResponse(Convert::raw2json(array($return)));
|
|
$response->addHeader('Content-Type', 'text/plain');
|
|
return $response;
|
|
}
|
|
|
|
function performReadonlyTransformation() {
|
|
$clone = clone $this;
|
|
$clone->addExtraClass('readonly');
|
|
$clone->setReadonly(true);
|
|
return $clone;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* RequestHandler for actions (edit, remove, delete) on a single item (File) of the UploadField
|
|
*
|
|
* @author Zauberfisch
|
|
* @package sapphire
|
|
* @subpackage forms
|
|
*/
|
|
class UploadField_ItemHandler extends RequestHandler {
|
|
|
|
/**
|
|
* @var UploadFIeld
|
|
*/
|
|
protected $parent;
|
|
|
|
/**
|
|
* @var int FileID
|
|
*/
|
|
protected $itemID;
|
|
|
|
public static $url_handlers = array(
|
|
'$Action!' => '$Action',
|
|
'' => 'index',
|
|
);
|
|
|
|
/**
|
|
* @param UploadFIeld $parent
|
|
* @param int $item
|
|
*/
|
|
public function __construct($parent, $itemID) {
|
|
$this->parent = $parent;
|
|
$this->itemID = $itemID;
|
|
|
|
parent::__construct();
|
|
}
|
|
|
|
/**
|
|
* @return File
|
|
*/
|
|
function getItem() {
|
|
return DataObject::get_by_id('File', $this->itemID);
|
|
}
|
|
|
|
/**
|
|
* @param string $action
|
|
* @return string
|
|
*/
|
|
public function Link($action = null) {
|
|
return Controller::join_links($this->parent->Link(), '/item/', $this->itemID, $action);
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
public function RemoveLink() {
|
|
$token = $this->parent->getForm()->getSecurityToken();
|
|
return $token->addToUrl($this->Link('remove'));
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
public function DeleteLink() {
|
|
$token = $this->parent->getForm()->getSecurityToken();
|
|
return $token->addToUrl($this->Link('delete'));
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
public function EditLink() {
|
|
return $this->Link('edit');
|
|
}
|
|
|
|
/**
|
|
* Action to handle removeing a single file from the db relation
|
|
*
|
|
* @param SS_HTTPRequest $request
|
|
* @return SS_HTTPResponse
|
|
*/
|
|
public function remove(SS_HTTPRequest $request) {
|
|
// Check form field state
|
|
if($this->parent->isDisabled() || $this->parent->isReadonly()) return $this->httpError(403);
|
|
|
|
// Protect against CSRF on destructive action
|
|
$token = $this->parent->getForm()->getSecurityToken();
|
|
if(!$token->checkRequest($request)) return $this->httpError(400);
|
|
|
|
$response = new SS_HTTPResponse();
|
|
$response->setStatusCode(500);
|
|
$fieldName = $this->parent->getName();
|
|
$record = $this->parent->getRecord();
|
|
$id = $this->getItem()->ID;
|
|
if ($id && $record && $record->exists()) {
|
|
if (($record->has_many($fieldName) || $record->many_many($fieldName)) && $file = $record->{$fieldName}()->byID($id)) {
|
|
$record->{$fieldName}()->remove($file);
|
|
$response->setStatusCode(200);
|
|
} elseif(substr($fieldName, -2) === 'ID' && $record->has_one(substr($fieldName, 0, -2)) && $record->{$fieldName} == $id) {
|
|
$record->{$fieldName} = 0;
|
|
$record->write();
|
|
$response->setStatusCode(200);
|
|
} elseif($record->has_one($fieldName) && $record->{$fieldName . 'ID'} == $id) {
|
|
$record->{$fieldName . 'ID'} = 0;
|
|
$record->write();
|
|
$response->setStatusCode(200);
|
|
}
|
|
}
|
|
if ($response->getStatusCode() != 200)
|
|
$response->setStatusDescription(_t('UploadField.REMOVEERROR', 'Error removing file'));
|
|
return $response;
|
|
}
|
|
|
|
/**
|
|
* Action to handle deleting of a single file
|
|
*
|
|
* @param SS_HTTPRequest $request
|
|
* @return SS_HTTPResponse
|
|
*/
|
|
public function delete(SS_HTTPRequest $request) {
|
|
// Check form field state
|
|
if($this->parent->isDisabled() || $this->parent->isReadonly()) return $this->httpError(403);
|
|
|
|
// Protect against CSRF on destructive action
|
|
$token = $this->parent->getForm()->getSecurityToken();
|
|
if(!$token->checkRequest($request)) return $this->httpError(400);
|
|
|
|
// Check item permissions
|
|
$item = $this->getItem();
|
|
if(!$item) return $this->httpError(404);
|
|
if(!$item->canDelete()) return $this->httpError(403);
|
|
|
|
// Only allow actions on files in the managed relation (if one exists)
|
|
$items = $this->parent->getItems();
|
|
if($this->managesRelation() && !$items->byID($item->ID)) return $this->httpError(403);
|
|
|
|
// First remove the file from the current relationship
|
|
$this->remove($request);
|
|
|
|
// Then delete the file from the filesystem
|
|
$item->delete();
|
|
}
|
|
|
|
/**
|
|
* Action to handle editing of a single file
|
|
*
|
|
* @param SS_HTTPRequest $request
|
|
* @return ViewableData_Customised
|
|
*/
|
|
public function edit(SS_HTTPRequest $request) {
|
|
// Check form field state
|
|
if($this->parent->isDisabled() || $this->parent->isReadonly()) return $this->httpError(403);
|
|
|
|
// Check item permissions
|
|
$item = $this->getItem();
|
|
if(!$item) return $this->httpError(404);
|
|
if(!$item->canEdit()) return $this->httpError(403);
|
|
|
|
// Only allow actions on files in the managed relation (if one exists)
|
|
$items = $this->parent->getItems();
|
|
if($this->managesRelation() && !$items->byID($item->ID)) return $this->httpError(403);
|
|
|
|
Requirements::css(SAPPHIRE_DIR . '/css/UploadField.css');
|
|
|
|
return $this->customise(array(
|
|
'Form' => $this->EditForm()
|
|
))->renderWith($this->parent->getTemplateFileEdit());
|
|
}
|
|
|
|
/**
|
|
* @return Form
|
|
*/
|
|
public function EditForm() {
|
|
$file = $this->getItem();
|
|
if (is_a($this->parent->getConfig('fileEditFields'), 'FieldList')) {
|
|
$fields = $this->parent->getConfig('fileEditFields');
|
|
} elseif ($file->hasMethod($this->parent->getConfig('fileEditFields'))) {
|
|
$fields = $file->{$this->parent->getConfig('fileEditFields')}();
|
|
} else {
|
|
$fields = $file->getCMSFields();
|
|
// Only display main tab, to avoid overly complex interface
|
|
if($fields->hasTabSet() && $mainTab = $fields->findOrMakeTab('Root.Main')) $fields = $mainTab->Fields();
|
|
}
|
|
if (is_a($this->parent->getConfig('fileEditActions'), 'FieldList')) {
|
|
$actions = $this->parent->getConfig('fileEditActions');
|
|
} elseif ($file->hasMethod($this->parent->getConfig('fileEditActions'))) {
|
|
$actions = $file->{$this->parent->getConfig('fileEditActions')}();
|
|
} else {
|
|
$actions = new FieldList($saveAction = new FormAction('doEdit', _t('UploadField.DOEDIT', 'Save')));
|
|
$saveAction->addExtraClass('ss-ui-action-constructive');
|
|
}
|
|
if (is_a($this->parent->getConfig('fileEditValidator'), 'Validator')) {
|
|
$validator = $this->parent->getConfig('fileEditValidator');
|
|
} elseif ($file->hasMethod($this->parent->getConfig('fileEditValidator'))) {
|
|
$validator = $file->{$this->parent->getConfig('fileEditValidator')}();
|
|
} else {
|
|
$validator = null;
|
|
}
|
|
$form = new Form(
|
|
$this,
|
|
__FUNCTION__,
|
|
$fields,
|
|
$actions,
|
|
$validator
|
|
);
|
|
$form->loadDataFrom($file);
|
|
$form->addExtraClass('small');
|
|
|
|
return $form;
|
|
}
|
|
|
|
/**
|
|
* @param array $data
|
|
* @param Form $form
|
|
* @param SS_HTTPRequest $request
|
|
*/
|
|
public function doEdit(array $data, Form $form, SS_HTTPRequest $request) {
|
|
// Check form field state
|
|
if($this->parent->isDisabled() || $this->parent->isReadonly()) return $this->httpError(403);
|
|
|
|
// Check item permissions
|
|
$item = $this->getItem();
|
|
if(!$item) return $this->httpError(404);
|
|
if(!$item->canEdit()) return $this->httpError(403);
|
|
|
|
// Only allow actions on files in the managed relation (if one exists)
|
|
$items = $this->parent->getItems();
|
|
if($this->managesRelation() && !$items->byID($item->ID)) return $this->httpError(403);
|
|
|
|
$form->saveInto($item);
|
|
$item->write();
|
|
|
|
$form->sessionMessage(_t('UploadField.Saved', 'Saved'), 'good');
|
|
|
|
return $this->parent->getForm()->Controller()->redirectBack();
|
|
}
|
|
|
|
/**
|
|
* Determines if the underlying record (if any) has a relationship
|
|
* matching the field name. Important for permission control.
|
|
*
|
|
* @return boolean
|
|
*/
|
|
protected function managesRelation() {
|
|
$record = $this->parent->getRecord();
|
|
$fieldName = $this->parent->getName();
|
|
if(!$record) return false;
|
|
|
|
return (
|
|
(substr($fieldName, -2) === 'ID' && $record->has_one(substr($fieldName, 0, -2)))
|
|
|| $record->has_many($fieldName)
|
|
|| $record->many_many($fieldName)
|
|
);
|
|
}
|
|
} |