GridFieldBulkEditingTools/code/GridFieldBulkImageUpload_Request.php

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<?php
/**
* Handles request from the GridFieldBulkImageUpload component
*
* Handles:
* * Form creation
* * file upload
* * editing and cancelling records
*/
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class GridFieldBulkImageUpload_Request extends RequestHandler {
/**
*
* @var GridField
*/
protected $gridField;
/**
*
* @var GridField_URLHandler
*/
protected $component;
/**
*
* @var Controller
*/
protected $controller;
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/**
* Cache the records FieldList from getCMSfields()
*
* @var FieldList
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*/
protected $recordCMSFieldList;
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/**
*
*/
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static $url_handlers = array(
'$Action!' => '$Action'/*,
'' => 'uploadForm'*/
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);
/**
*
* @param GridFIeld $gridField
* @param GridField_URLHandler $component
* @param Controller $controller
*/
public function __construct($gridField, $component, $controller) {
$this->gridField = $gridField;
$this->component = $component;
$this->controller = $controller;
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parent::__construct();
}
/**
* Returns the URL for this RequestHandler
*
* @author SilverStripe
* @see GridFieldDetailForm_ItemRequest
* @param string $action
* @return string
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*/
public function Link($action = null) {
return Controller::join_links($this->gridField->Link(), 'bulkimageupload', $action);
}
/**
* Returns the name of the Image field name from the managed record
* Either as set in the component config or the default one
*
* @return string
*/
function getRecordImageField()
{
$fieldName = $this->component->getRecordImageField();
if ( $fieldName == null ) $fieldName = $this->getDefaultRecordImageField();
return $fieldName;
}
/**
* Returns the list of editable fields from the managed record
* Either as set in the component config or the default ones
*
* @return array
*/
function getRecordEditableFields()
{
$fields = $this->component->getRecordEditableFields();
if ( $fields == null ) $fields = $this->getDefaultRecordEditableFields();
return $fields;
}
/**
* Get the first has_one Image realtion from the GridField managed DataObject
*
* @return string
*/
function getDefaultRecordImageField()
{
$recordClass = $this->gridField->list->dataClass;
$recordHasOneFields = Config::inst()->get($recordClass, 'has_one', Config::UNINHERITED);
$imageField = null;
foreach( $recordHasOneFields as $field => $type )
{
if ( $type == 'Image' ) {
$imageField = $field . 'ID';
break;
}
}
return $imageField;
}
/**
* Return a list of the GridField managed DataObject's editable fields: (HTML)Text, (HTML)Varchar and Enum fields
*
* @return array
*/
function getDefaultRecordEditableFields()
{
$recordClass = $this->gridField->list->dataClass;
$recordDbFields = Config::inst()->get($recordClass, 'db', Config::UNINHERITED);
$editableFields = array();
foreach ( $recordDbFields as $field => $type )
{
if ( preg_match( '/(Text|Varchar|Enum)/i', $type ) > 0 ) {
array_push($editableFields, $field);
}
}
return $editableFields;
}
/**
* Return the CMS edit field for a given name. As set in the GridField managed DataObject getCMSFields method
*
* @param string $fieldName
* @return FormField
*/
function getFieldEditForm($fieldName)
{
if ( !$this->recordCMSFieldList ) {
$recordClass = $this->gridField->list->dataClass;
$this->recordCMSFieldList = singleton($recordClass)->getCMSFields();
}
$field = $this->recordCMSFieldList->fieldByName($fieldName);
if ( !$field ) {
$fields = $this->recordCMSFieldList->dataFields();
$field = $fields[$fieldName];
}
return $field;
}
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/**
* Default and main action that returns the upload form etc...
*
* @return string Form's HTML
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*/
public function index()
{
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Requirements::javascript(FRAMEWORK_DIR . '/javascript/AssetUploadField.js');
Requirements::css(FRAMEWORK_DIR . '/css/AssetUploadField.css');
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$crumbs = $this->Breadcrumbs();
if($crumbs && $crumbs->count()>=2) $one_level_up = $crumbs->offsetGet($crumbs->count()-2);
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$actions = new FieldList();
$html = "
<a id=\"bulkImageUploadUpdateBtn\" class=\"cms-panel-link action ss-ui-action-constructive ss-ui-button ui-button ui-widget ui-state-default ui-corner-all ui-button-text-icon-primary\" data-icon=\"accept\" data-url=\"".$this->Link('update')."\" href=\"#\">
Save All
</a>";
$actions->push(new LiteralField('savebutton', $html));
if($crumbs && $crumbs->count()>=2)
{
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$html = "
<a id=\"bulkImageUploadUpdateFinishBtn\" class=\"cms-panel-link action ss-ui-action-constructive ss-ui-button ui-button ui-widget ui-state-default ui-corner-all ui-button-text-icon-primary\" data-icon=\"accept\" data-url=\"".$this->Link('update')."\" href=\"".$one_level_up->Link."\">
Save All &amp; Finish
</a>";
$actions->push(new LiteralField('finishbutton', $html));
$html = "
<a id=\"bulkImageUploadUpdateCancelBtn\" class=\"cms-panel-link delete ss-ui-action-destructive ss-ui-button ui-button ui-widget ui-state-default ui-button-text-icon-primary\" data-icon=\"decline\" data-url=\"".$this->Link('cancel')."\" href=\"#\">
Cancel &amp; Delete All
</a>";
$actions->push(new LiteralField('cancelbutton', $html));
}
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$uploadField = UploadField::create('BulkImageUploadField', '');
$uploadField->setConfig('previewMaxWidth', 40);
$uploadField->setConfig('previewMaxHeight', 30);
$uploadField->addExtraClass('ss-assetuploadfield');
$uploadField->removeExtraClass('ss-uploadfield');
$uploadField->setTemplate('AssetUploadField');
$uploadField->setConfig('downloadTemplateName','GridFieldBulkImageUpload_downloadtemplate');
$uploadField->setConfig('url', $this->Link('upload'));
$uploadField->setFolderName(ASSETS_DIR);
$form = new Form(
$this,
'bulkImageUploadForm',
new FieldList(
$uploadField
),
$actions
);
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$form->setTemplate('LeftAndMain_EditForm');
$form->addExtraClass('center cms-edit-form cms-content');
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$form->setAttribute('data-pjax-fragment', 'CurrentForm Content');
if($crumbs && $crumbs->count()>=2){
$form->Backlink = $one_level_up->Link;
}
// this actually fixes the JS Requirements issue.
// Calling forTemplate() before other requirements forces SS to add the Form's X-Include-JS before
$formHTML = $form->forTemplate();
Requirements::javascript('GridFieldBulkImageUpload/javascript/GridFieldBulkImageUpload.js');
Requirements::css('GridFieldBulkImageUpload/css/GridFieldBulkImageUpload.css');
Requirements::javascript('GridFieldBulkImageUpload/javascript/GridFieldBulkImageUpload_downloadtemplate.js');
$response = new SS_HTTPResponse($formHTML);
$response->addHeader('Content-Type', 'text/plain');
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$response->addHeader('X-Title', 'SilverStripe - Bulk '.$this->gridField->list->dataClass.' Image Upload');
return $response;
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}
/**
* Process image upload and Object creation
* Create new DataObject and add image relation
* returns Image data and editable Fields forms
*
* Overides UploadField's upload method by Zauberfisch
* Kept original file upload/processing but removed unessesary processing
* and adds DataObject creation and editableFields processing
*
* @author Zauberfisch original upload() method
* @see UploadField->upload()
* @param SS_HTTPRequest $request
* @return string json
*/
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public function upload(SS_HTTPRequest $request)
{
$recordClass = $this->gridField->list->dataClass;
$recordForeignKey = $this->gridField->list->foreignKey;
$recordForeignID = $this->gridField->list->foreignID;
$record = Object::create($recordClass);
$record->setField($recordForeignKey, $recordForeignID);
$record->write();
$upload = new Upload();
$tmpfile = $request->postVar('BulkImageUploadField');
// Check if the file has been uploaded into the temporary storage.
if (!$tmpfile) {
$return = array('error' => _t('UploadField.FIELDNOTSET', 'File information not found'));
} else {
$return = array(
'name' => $tmpfile['name'],
'size' => $tmpfile['size'],
'type' => $tmpfile['type'],
'error' => $tmpfile['error']
);
}
// Process the uploaded file
if (!$return['error']) {
$fileObject = Object::create('Image');
// Get the uploaded file into a new file object.
try {
$upload->loadIntoFile($tmpfile, $fileObject, 'Uploads/bulk');
} catch (Exception $e) {
// we shouldn't get an error here, but just in case
$return['error'] = $e->getMessage();
}
if (!$return['error']) {
if ($upload->isError()) {
$return['error'] = implode(' '.PHP_EOL, $upload->getErrors());
} else {
$file = $upload->getFile();
// Attach the file to the related record.
$record->setField($this->getRecordImageField(), $file->ID);
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$record->write();
// collect all editable fields forms
$recordEditableFieldsForms = array();
foreach ( $this->getRecordEditableFields() as $editableFieldName )
{
array_push($recordEditableFieldsForms, $this->parseFieldHTMLWithRecordID($this->getFieldEditForm($editableFieldName)->FieldHolder(), $record->ID) );
}
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// Collect all output data.
$return = array_merge($return, array(
'id' => $file->ID,
'name' => $file->getTitle() . '.' . $file->getExtension(),
'url' => $file->getURL(),
'preview_url' => $file->setHeight(55)->Link(),
'thumbnail_url' => $file->SetRatioSize(40,30)->getURL(),
'size' => $file->getAbsoluteSize(),
//'buttons' => $file->UploadFieldFileButtons,
'record' => array(
'ID' => $record->ID,
'fields' => $recordEditableFieldsForms
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)
));
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}
}
}
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$response = new SS_HTTPResponse(Convert::raw2json(array($return)));
$response->addHeader('Content-Type', 'text/plain');
return $response;
}
/**
* Update a record with the newly edited fields
*
* @param SS_HTTPRequest $request
* @return string
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*/
public function update(SS_HTTPRequest $request)
{
$data = $this->getParsedPostData($request->requestVars());
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$recordClass = $this->gridField->list->dataClass;
$record = DataObject::get_by_id($recordClass, $data['ID']);
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foreach($data as $field => $value)
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{
$record->setField($field, $value);
}
$record->write();
return '{done:1,recordID:'.$data['ID'].'}';
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}
/**
* Delete the Image Object and File as well as the DataObject
* according to the ID sent from the form
*
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* @param SS_HTTPRequest $request
* @return string json
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*/
public function cancel(SS_HTTPRequest $request)
{
$data = $this->getParsedPostData($request->requestVars());
$return = array();
$recordClass = $this->gridField->list->dataClass;
$record = DataObject::get_by_id($recordClass, $data['ID']);
$imageField = $this->getRecordImageField();
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$imageID = $record->$imageField;
$image = DataObject::get_by_id('Image', $imageID);
$return[$data['ID']]['imageID'] = $imageID;
$return[$data['ID']]['deletedDataObject'] = DataObject::delete_by_id($recordClass, $data['ID']);
$return[$data['ID']]['deletedFormattedImages'] = $image->deleteFormattedImages();
$return[$data['ID']]['deletedImageFile'] = unlink( Director::getAbsFile($image->getRelativePath()) );
$response = new SS_HTTPResponse(Convert::raw2json($return));
$response->addHeader('Content-Type', 'text/plain');
return $response;
}
/**
* Simple function that replace the 'record_XX_' off of the ID field name
* prefix needed since it was taken for a pageID if sent as is as well as fixing other things
*
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* @param array $data
* @return array
*/
function getParsedPostData(array $data)
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{
$return = array();
foreach( $data as $key => $val)
{
$return[ preg_replace( '/record_(\d+)_(\w+)/i', '$2', $key) ] = $val;
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}
return $return;
}
/**
* Add a unique prefix to sensitive HTML attributes (ID, FOR, NAME)
* Fixes rendering issue (i.e. dropdown fields) and IDs being mistaken for page IDs
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*
* @param string $html
* @param string/int $id
* @return string
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*/
function parseFieldHTMLWithRecordID($html, $id)
{
$prefix = 'record_'.$id.'_';
return str_ireplace ( array('id="', 'for="', 'name="'),
array('id="'.$prefix, 'for="'.$prefix, 'name="'.$prefix),
$html);
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}
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/**
* Edited version of the GridFieldEditForm function
* adds the 'Bulk Upload' at the end of the crums
*
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* CMS-specific functionality: Passes through navigation breadcrumbs
* to the template, and includes the currently edited record (if any).
* see {@link LeftAndMain->Breadcrumbs()} for details.
*
* @author SilverStripe original Breadcrumbs() method
* @see GridFieldDetailForm_ItemRequest
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* @param boolean $unlinked
* @return ArrayData
*/
function Breadcrumbs($unlinked = false) {
if(!$this->controller->hasMethod('Breadcrumbs')) return;
$items = $this->controller->Breadcrumbs($unlinked);
$items->push(new ArrayData(array(
'Title' => 'Bulk Upload',
'Link' => false
)));
return $items;
}
}