silverstripe-dms/code/cms/DMSUploadField.php

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<?php
/**
* Field for uploading files into a DMSDocument. Replacing the existing file.
* Not ideally suited for the purpose, as the base implementation
* assumes to operate on a {@link File} record. We only use this as
* a temporary container, which gets deleted as soon as the actual
* {@link DMSDocument} is created.
*
* <b>NOTE: this Field will call write() on the supplied record</b>
*
* @author Julian Seidenberg
* @package dms
*/
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class DMSUploadField extends UploadField
{
private static $allowed_actions = array(
"upload",
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);
protected $folderName = 'DMSTemporaryUploads';
public function __construct($name, $title = null, SS_List $items = null)
{
parent::__construct($name, $title, $items);
//set default DMS replace template to false
$this->setConfig('useDMSReplaceTemplate', 0);
}
/**
* Override the default behaviour of the UploadField and take the uploaded file (uploaded to assets) and
* add it into the DMS storage, deleting the old/uploaded file.
* @param File
*/
protected function attachFile($file)
{
$dms = DMS::inst();
$record = $this->getRecord();
if ($record instanceof DMSDocument) {
// If the edited record is a document,
// assume we're replacing an existing file
$doc = $record;
$doc->ingestFile($file);
} else {
// Otherwise create it
$doc = $dms->storeDocument($file);
$file->delete();
// Relate to the underlying page being edited.
// Not applicable when editing the document itself and replacing it.
$doc->addPage($record);
}
return $doc;
}
public function validate($validator)
{
return true;
}
public function isDisabled()
{
return (parent::isDisabled() || !$this->isSaveable());
}
public function isSaveable()
{
return (!empty($this->getRecord()->ID));
}
/**
* Action to handle upload of a single file
*
* @param SS_HTTPRequest $request
* @return string json
*/
public function upload(SS_HTTPRequest $request)
{
if ($this->isDisabled() || $this->isReadonly()) {
return $this->httpError(403);
}
// Protect against CSRF on destructive action
$token = $this->getForm()->getSecurityToken();
if (!$token->checkRequest($request)) {
return $this->httpError(400);
}
$name = $this->getName();
$tmpfile = $request->postVar($name);
$record = $this->getRecord();
// Check if the file has been uploaded into the temporary storage.
if (!$tmpfile) {
$return = array('error' => _t('UploadField.FIELDNOTSET', 'File information not found'));
} else {
$return = array(
'name' => $tmpfile['name'],
'size' => $tmpfile['size'],
'type' => $tmpfile['type'],
'error' => $tmpfile['error']
);
}
// Check for constraints on the record to which the file will be attached.
if (!$return['error'] && $this->relationAutoSetting && $record && $record->exists()) {
$tooManyFiles = false;
// Some relationships allow many files to be attached.
if ($this->getConfig('allowedMaxFileNumber') && ($record->has_many($name) || $record->many_many($name))) {
if (!$record->isInDB()) {
$record->write();
}
$tooManyFiles = $record->{$name}()->count() >= $this->getConfig('allowedMaxFileNumber');
// has_one only allows one file at any given time.
} elseif ($record->has_one($name)) {
$tooManyFiles = $record->{$name}() && $record->{$name}()->exists();
}
// Report the constraint violation.
if ($tooManyFiles) {
if (!$this->getConfig('allowedMaxFileNumber')) {
$this->setConfig('allowedMaxFileNumber', 1);
}
$return['error'] = _t(
'UploadField.MAXNUMBEROFFILES',
'Max number of {count} file(s) exceeded.',
array('count' => $this->getConfig('allowedMaxFileNumber'))
);
}
}
// Process the uploaded file
if (!$return['error']) {
$fileObject = null;
if ($this->relationAutoSetting) {
// Search for relations that can hold the uploaded files.
if ($relationClass = $this->getRelationAutosetClass()) {
// Create new object explicitly. Otherwise rely on Upload::load to choose the class.
$fileObject = Object::create($relationClass);
}
}
// Get the uploaded file into a new file object.
try {
$this->upload->loadIntoFile($tmpfile, $fileObject, $this->folderName);
} catch (Exception $e) {
// we shouldn't get an error here, but just in case
$return['error'] = $e->getMessage();
}
if (!$return['error']) {
if ($this->upload->isError()) {
$return['error'] = implode(' '.PHP_EOL, $this->upload->getErrors());
} else {
$file = $this->upload->getFile();
// CUSTOM Attach the file to the related record.
$document = $this->attachFile($file);
// Collect all output data.
$return = array_merge($return, array(
'id' => $document->ID,
'name' => $document->getTitle(),
'thumbnail_url' => $document->Icon($document->getExtension()),
'edit_url' => $this->getItemHandler($document->ID)->EditLink(),
'size' => $document->getFileSizeFormatted(),
'buttons' => (string) $document->renderWith($this->getTemplateFileButtons()),
'showeditform' => true
));
// CUSTOM END
}
}
}
$response = new SS_HTTPResponse(Convert::raw2json(array($return)));
$response->addHeader('Content-Type', 'text/plain');
return $response;
}
/**
* Never directly display items uploaded
* @return SS_List
*/
public function getItems()
{
return new ArrayList();
}
public function Field($properties = array())
{
$fields = parent::Field($properties);
// Replace the download template with a new one only when access the upload field through a GridField.
// Needs to be enabled through setConfig('downloadTemplateName', 'ss-dmsuploadfield-downloadtemplate');
Requirements::javascript('dms/javascript/DMSUploadField_downloadtemplate.js');
// In the add dialog, add the addtemplate into the set of file that load.
Requirements::javascript('dms/javascript/DMSUploadField_addtemplate.js');
return $fields;
}
/**
* @param int $itemID
* @return UploadField_ItemHandler
*/
public function getItemHandler($itemID)
{
return DMSUploadField_ItemHandler::create($this, $itemID);
}
/**
* FieldList $fields for the EditForm
* @example 'getCMSFields'
*
* @param File $file File context to generate fields for
* @return FieldList List of form fields
*/
public function getDMSFileEditFields($file)
{
// Empty actions, generate default
if(empty($this->fileEditFields)) {
$fields = $file->getCMSFields();
// Only display main tab, to avoid overly complex interface
if($fields->hasTabSet() && ($mainTab = $fields->findOrMakeTab('Root.Main'))) {
$fields = $mainTab->Fields();
}
return $fields;
}
// Fields instance
if ($this->fileEditFields instanceof FieldList) return $this->fileEditFields;
// Method to call on the given file
if($file->hasMethod($this->fileEditFields)) {
return $file->{$this->fileEditFields}();
}
user_error("Invalid value for UploadField::fileEditFields", E_USER_ERROR);
}
/**
* FieldList $actions or string $name (of a method on File to provide a actions) for the EditForm
* @example 'getCMSActions'
*
* @param File $file File context to generate form actions for
* @return FieldList Field list containing FormAction
*/
public function getDMSFileEditActions($file)
{
// Empty actions, generate default
if(empty($this->fileEditActions)) {
$actions = new FieldList($saveAction = new FormAction('doEdit', _t('UploadField.DOEDIT', 'Save')));
$saveAction->addExtraClass('ss-ui-action-constructive icon-accept');
return $actions;
}
// Actions instance
if ($this->fileEditActions instanceof FieldList) return $this->fileEditActions;
// Method to call on the given file
if($file->hasMethod($this->fileEditActions)) {
return $file->{$this->fileEditActions}();
}
user_error("Invalid value for UploadField::fileEditActions", E_USER_ERROR);
}
/**
* Determines the validator to use for the edit form
* @example 'getCMSValidator'
*
* @param File $file File context to generate validator from
* @return Validator Validator object
*/
public function getDMSFileEditValidator($file)
{
// Empty validator
if(empty($this->fileEditValidator)) return null;
// Validator instance
if($this->fileEditValidator instanceof Validator) return $this->fileEditValidator;
// Method to call on the given file
if($file->hasMethod($this->fileEditValidator)) {
return $file->{$this->fileEditValidator}();
}
user_error("Invalid value for UploadField::fileEditValidator", E_USER_ERROR);
}
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}
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class DMSUploadField_ItemHandler extends UploadField_ItemHandler
{
private static $allowed_actions = array(
'delete',
'edit',
'EditForm',
);
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public function getItem()
{
return DataObject::get_by_id('DMSDocument', $this->itemID);
}
/**
* @return Form
*/
public function EditForm() {
$file = $this->getItem();
// Get form components
$fields = $this->parent->getDMSFileEditFields($file);
$actions = $this->parent->getDMSFileEditActions($file);
$validator = $this->parent->getDMSFileEditValidator($file);
$form = new Form(
$this,
__FUNCTION__,
$fields,
$actions,
$validator
);
$form->loadDataFrom($file);
$form->addExtraClass('small');
return $form;
}
}