mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
698 lines
19 KiB
PHP
698 lines
19 KiB
PHP
<?php
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/**
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* Provides view and edit forms at GridField-specific URLs.
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*
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* These can be placed into pop-ups by an appropriate front-end.
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*
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* Usually added to a {@link GridField} alongside of a
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* {@link GridFieldEditButton} which takes care of linking the
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* individual rows to their edit view.
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*
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* The URLs provided will be off the following form:
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* - <FormURL>/field/<GridFieldName>/item/<RecordID>
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* - <FormURL>/field/<GridFieldName>/item/<RecordID>/edit
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*
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* @package forms
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* @subpackage fields-gridfield
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*/
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class GridFieldDetailForm implements GridField_URLHandler {
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/**
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* @var String
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*/
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protected $template = 'GridFieldDetailForm';
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/**
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*
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* @var string
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*/
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protected $name;
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/**
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* @var Validator The form validator used for both add and edit fields.
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*/
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protected $validator;
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/**
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* @var FieldList Falls back to {@link DataObject->getCMSFields()} if not defined.
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*/
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protected $fields;
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/**
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* @var String
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*/
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protected $itemRequestClass;
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/**
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* @var function With two parameters: $form and $component
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*/
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protected $itemEditFormCallback;
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public function getURLHandlers($gridField) {
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return array(
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'item/$ID' => 'handleItem',
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'autocomplete' => 'handleAutocomplete',
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);
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}
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/**
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* Create a popup component. The two arguments will specify how the popup form's HTML and
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* behaviour is created. The given controller will be customised, putting the edit form into the
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* template with the given name.
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*
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* The arguments are experimental API's to support partial content to be passed back to whatever
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* controller who wants to display the getCMSFields
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*
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* @param string $name The name of the edit form to place into the pop-up form
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*/
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public function __construct($name = 'DetailForm') {
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$this->name = $name;
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}
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/**
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*
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* @param GridField $gridField
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* @param SS_HTTPRequest $request
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* @return GridFieldDetailForm_ItemRequest
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*/
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public function handleItem($gridField, $request) {
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// Our getController could either give us a true Controller, if this is the top-level GridField.
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// It could also give us a RequestHandler in the form of GridFieldDetailForm_ItemRequest if this is a
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// nested GridField.
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$requestHandler = $gridField->getForm()->getController();
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if(is_numeric($request->param('ID'))) {
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$record = $gridField->getList()->byId($request->param("ID"));
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} else {
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$record = Object::create($gridField->getModelClass());
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}
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$class = $this->getItemRequestClass();
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$handler = Object::create($class, $gridField, $this, $record, $requestHandler, $this->name);
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$handler->setTemplate($this->template);
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// if no validator has been set on the GridField and the record has a
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// CMS validator, use that.
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if(!$this->getValidator() && (method_exists($record, 'getCMSValidator') || $record instanceof Object && $record->hasMethod('getCMSValidator'))) {
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$this->setValidator($record->getCMSValidator());
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}
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return $handler->handleRequest($request, DataModel::inst());
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}
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/**
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* @param String
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*/
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public function setTemplate($template) {
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$this->template = $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 getTemplate() {
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return $this->template;
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}
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/**
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* @param String
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*/
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public function setName($name) {
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$this->name = $name;
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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 getName() {
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return $this->name;
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}
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/**
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* @param Validator $validator
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*/
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public function setValidator(Validator $validator) {
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$this->validator = $validator;
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return $this;
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}
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/**
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* @return Validator
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*/
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public function getValidator() {
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return $this->validator;
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}
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/**
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* @param FieldList $fields
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*/
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public function setFields(FieldList $fields) {
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$this->fields = $fields;
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return $this;
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}
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/**
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* @return FieldList
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*/
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public function getFields() {
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return $this->fields;
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}
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/**
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* @param String
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*/
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public function setItemRequestClass($class) {
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$this->itemRequestClass = $class;
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return $this;
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}
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/**
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* @return String
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*/
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public function getItemRequestClass() {
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if($this->itemRequestClass) {
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return $this->itemRequestClass;
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} else if(ClassInfo::exists(get_class($this) . "_ItemRequest")) {
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return get_class($this) . "_ItemRequest";
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} else {
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return 'GridFieldDetailForm_ItemRequest';
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}
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}
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/**
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* @param Closure $cb Make changes on the edit form after constructing it.
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*/
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public function setItemEditFormCallback(Closure $cb) {
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$this->itemEditFormCallback = $cb;
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return $this;
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}
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/**
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* @return Closure
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*/
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public function getItemEditFormCallback() {
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return $this->itemEditFormCallback;
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}
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}
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/**
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* @package forms
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* @subpackage fields-gridfield
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*/
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class GridFieldDetailForm_ItemRequest extends RequestHandler {
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private static $allowed_actions = array(
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'edit',
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'view',
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'ItemEditForm'
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);
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/**
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*
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* @var GridField
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*/
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protected $gridField;
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/**
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*
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* @var GridField_URLHandler
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*/
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protected $component;
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/**
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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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* This represents the current parent RequestHandler (which does not necessarily need to be a Controller).
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* It allows us to traverse the RequestHandler chain upwards to reach the Controller stack.
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*
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* @var RequestHandler
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*/
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protected $popupController;
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/**
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*
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* @var string
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*/
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protected $popupFormName;
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/**
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* @var String
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*/
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protected $template = 'GridFieldItemEditView';
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private static $url_handlers = array(
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'$Action!' => '$Action',
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'' => 'edit',
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);
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/**
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*
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* @param GridFIeld $gridField
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* @param GridField_URLHandler $component
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* @param DataObject $record
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* @param RequestHandler $requestHandler
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* @param string $popupFormName
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*/
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public function __construct($gridField, $component, $record, $requestHandler, $popupFormName) {
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$this->gridField = $gridField;
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$this->component = $component;
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$this->record = $record;
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$this->popupController = $requestHandler;
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$this->popupFormName = $popupFormName;
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parent::__construct();
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}
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public function Link($action = null) {
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return Controller::join_links($this->gridField->Link('item'),
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$this->record->ID ? $this->record->ID : 'new', $action);
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}
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public function view($request) {
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if(!$this->record->canView()) {
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$this->httpError(403);
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}
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$controller = $this->getToplevelController();
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$form = $this->ItemEditForm($this->gridField, $request);
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$form->makeReadonly();
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$data = new ArrayData(array(
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'Backlink' => $controller->Link(),
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'ItemEditForm' => $form
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));
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$return = $data->renderWith($this->template);
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if($request->isAjax()) {
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return $return;
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} else {
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return $controller->customise(array('Content' => $return));
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}
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}
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public function edit($request) {
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$controller = $this->getToplevelController();
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$form = $this->ItemEditForm($this->gridField, $request);
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$return = $this->customise(array(
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'Backlink' => $controller->hasMethod('Backlink') ? $controller->Backlink() : $controller->Link(),
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'ItemEditForm' => $form,
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))->renderWith($this->template);
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if($request->isAjax()) {
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return $return;
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} else {
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// If not requested by ajax, we need to render it within the controller context+template
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return $controller->customise(array(
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// TODO CMS coupling
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'Content' => $return,
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));
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}
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}
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/**
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* Builds an item edit form. The arguments to getCMSFields() are the popupController and
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* popupFormName, however this is an experimental API and may change.
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*
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* @todo In the future, we will probably need to come up with a tigher object representing a partially
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* complete controller with gaps for extra functionality. This, for example, would be a better way
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* of letting Security/login put its log-in form inside a UI specified elsewhere.
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*
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* @return Form
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*/
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public function ItemEditForm() {
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$list = $this->gridField->getList();
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if (empty($this->record)) {
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$controller = $this->getToplevelController();
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$noActionURL = $controller->removeAction($_REQUEST['url']);
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$controller->getResponse()->removeHeader('Location'); //clear the existing redirect
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return $controller->redirect($noActionURL, 302);
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}
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$canView = $this->record->canView();
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$canEdit = $this->record->canEdit();
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$canDelete = $this->record->canDelete();
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$canCreate = $this->record->canCreate();
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if(!$canView) {
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$controller = $this->getToplevelController();
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// TODO More friendly error
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return $controller->httpError(403);
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}
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$actions = new FieldList();
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if($this->record->ID !== 0) {
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if($canEdit) {
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$actions->push(FormAction::create('doSave', _t('GridFieldDetailForm.Save', 'Save'))
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->setUseButtonTag(true)
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->addExtraClass('ss-ui-action-constructive')
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->setAttribute('data-icon', 'accept'));
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}
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if($canDelete) {
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$actions->push(FormAction::create('doDelete', _t('GridFieldDetailForm.Delete', 'Delete'))
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->setUseButtonTag(true)
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->addExtraClass('ss-ui-action-destructive action-delete'));
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}
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}else{ // adding new record
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//Change the Save label to 'Create'
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$actions->push(FormAction::create('doSave', _t('GridFieldDetailForm.Create', 'Create'))
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->setUseButtonTag(true)
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->addExtraClass('ss-ui-action-constructive')
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->setAttribute('data-icon', 'add'));
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// Add a Cancel link which is a button-like link and link back to one level up.
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$curmbs = $this->Breadcrumbs();
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if($curmbs && $curmbs->count()>=2){
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$one_level_up = $curmbs->offsetGet($curmbs->count()-2);
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$text = sprintf(
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"<a class=\"%s\" href=\"%s\">%s</a>",
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"crumb ss-ui-button ss-ui-action-destructive cms-panel-link ui-corner-all", // CSS classes
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$one_level_up->Link, // url
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_t('GridFieldDetailForm.CancelBtn', 'Cancel') // label
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);
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$actions->push(new LiteralField('cancelbutton', $text));
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}
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}
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// If we are creating a new record in a has-many list, then
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// pre-populate the record's foreign key.
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if($list instanceof HasManyList && !$this->record->isInDB()) {
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$key = $list->getForeignKey();
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$id = $list->getForeignID();
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$this->record->$key = $id;
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}
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$fields = $this->component->getFields();
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if(!$fields) $fields = $this->record->getCMSFields();
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// If we are creating a new record in a has-many list, then
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// Disable the form field as it has no effect.
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if($list instanceof HasManyList) {
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$key = $list->getForeignKey();
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if($field = $fields->dataFieldByName($key)) {
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$fields->makeFieldReadonly($field);
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}
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}
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// Caution: API violation. Form expects a Controller, but we are giving it a RequestHandler instead.
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// Thanks to this however, we are able to nest GridFields, and also access the initial Controller by
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// dereferencing GridFieldDetailForm_ItemRequest->getController() multiple times. See getToplevelController
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// below.
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$form = new Form(
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$this,
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'ItemEditForm',
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$fields,
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$actions,
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$this->component->getValidator()
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);
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$form->loadDataFrom($this->record, $this->record->ID == 0 ? Form::MERGE_IGNORE_FALSEISH : Form::MERGE_DEFAULT);
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if($this->record->ID && !$canEdit) {
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// Restrict editing of existing records
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$form->makeReadonly();
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// Hack to re-enable delete button if user can delete
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if ($canDelete) {
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$form->Actions()->fieldByName('action_doDelete')->setReadonly(false);
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}
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} elseif(!$this->record->ID && !$canCreate) {
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// Restrict creation of new records
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$form->makeReadonly();
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}
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// Load many_many extraData for record.
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// Fields with the correct 'ManyMany' namespace need to be added manually through getCMSFields().
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if($list instanceof ManyManyList) {
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$extraData = $list->getExtraData('', $this->record->ID);
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$form->loadDataFrom(array('ManyMany' => $extraData));
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}
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// TODO Coupling with CMS
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$toplevelController = $this->getToplevelController();
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if($toplevelController && $toplevelController instanceof LeftAndMain) {
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// Always show with base template (full width, no other panels),
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// regardless of overloaded CMS controller templates.
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// TODO Allow customization, e.g. to display an edit form alongside a search form from the CMS controller
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$form->setTemplate('LeftAndMain_EditForm');
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$form->addExtraClass('cms-content cms-edit-form center');
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$form->setAttribute('data-pjax-fragment', 'CurrentForm Content');
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if($form->Fields()->hasTabset()) {
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$form->Fields()->findOrMakeTab('Root')->setTemplate('CMSTabSet');
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$form->addExtraClass('cms-tabset');
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}
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$form->Backlink = $this->getBackLink();
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}
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$cb = $this->component->getItemEditFormCallback();
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if($cb) $cb($form, $this);
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$this->extend("updateItemEditForm", $form);
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return $form;
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}
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/**
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* Traverse the nested RequestHandlers until we reach something that's not GridFieldDetailForm_ItemRequest.
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* This allows us to access the Controller responsible for invoking the top-level GridField.
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* This should be equivalent to getting the controller off the top of the controller stack via Controller::curr(),
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* but allows us to avoid accessing the global state.
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*
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* GridFieldDetailForm_ItemRequests are RequestHandlers, and as such they are not part of the controller stack.
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*
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* @return Controller
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*/
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protected function getToplevelController() {
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$c = $this->popupController;
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while($c && $c instanceof GridFieldDetailForm_ItemRequest) {
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$c = $c->getController();
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}
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return $c;
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}
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protected function getBackLink(){
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// TODO Coupling with CMS
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$backlink = '';
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$toplevelController = $this->getToplevelController();
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if($toplevelController && $toplevelController instanceof LeftAndMain) {
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if($toplevelController->hasMethod('Backlink')) {
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$backlink = $toplevelController->Backlink();
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} elseif($this->popupController->hasMethod('Breadcrumbs')) {
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$parents = $this->popupController->Breadcrumbs(false)->items;
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$backlink = array_pop($parents)->Link;
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}
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}
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if(!$backlink) $backlink = $toplevelController->Link();
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return $backlink;
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}
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/**
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* Get the list of extra data from the $record as saved into it by
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* {@see Form::saveInto()}
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*
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* Handles detection of falsey values explicitly saved into the
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* DataObject by formfields
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*
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* @param DataObject $record
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* @param SS_List $list
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* @return array List of data to write to the relation
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*/
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protected function getExtraSavedData($record, $list) {
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// Skip extra data if not ManyManyList
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if(!($list instanceof ManyManyList)) {
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return null;
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}
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$data = array();
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foreach($list->getExtraFields() as $field => $dbSpec) {
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$savedField = "ManyMany[{$field}]";
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if($record->hasField($savedField)) {
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$data[$field] = $record->getField($savedField);
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}
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}
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return $data;
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}
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public function doSave($data, $form) {
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$new_record = $this->record->ID == 0;
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$controller = $this->getToplevelController();
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$list = $this->gridField->getList();
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if(!$this->record->canEdit()) {
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return $controller->httpError(403);
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}
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if (isset($data['ClassName']) && $data['ClassName'] != $this->record->ClassName) {
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$newClassName = $data['ClassName'];
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// The records originally saved attribute was overwritten by $form->saveInto($record) before.
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// This is necessary for newClassInstance() to work as expected, and trigger change detection
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// on the ClassName attribute
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$this->record->setClassName($this->record->ClassName);
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// Replace $record with a new instance
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$this->record = $this->record->newClassInstance($newClassName);
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}
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try {
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$form->saveInto($this->record);
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$this->record->write();
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$extraData = $this->getExtraSavedData($this->record, $list);
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$list->add($this->record, $extraData);
|
|
} catch(ValidationException $e) {
|
|
$form->sessionMessage($e->getResult()->message(), 'bad', false);
|
|
$responseNegotiator = new PjaxResponseNegotiator(array(
|
|
'CurrentForm' => function() use(&$form) {
|
|
return $form->forTemplate();
|
|
},
|
|
'default' => function() use(&$controller) {
|
|
return $controller->redirectBack();
|
|
}
|
|
));
|
|
if($controller->getRequest()->isAjax()){
|
|
$controller->getRequest()->addHeader('X-Pjax', 'CurrentForm');
|
|
}
|
|
return $responseNegotiator->respond($controller->getRequest());
|
|
}
|
|
|
|
// TODO Save this item into the given relationship
|
|
|
|
$link = '<a href="' . $this->Link('edit') . '">"'
|
|
. htmlspecialchars($this->record->Title, ENT_QUOTES)
|
|
. '"</a>';
|
|
$message = _t(
|
|
'GridFieldDetailForm.Saved',
|
|
'Saved {name} {link}',
|
|
array(
|
|
'name' => $this->record->i18n_singular_name(),
|
|
'link' => $link
|
|
)
|
|
);
|
|
|
|
$form->sessionMessage($message, 'good', false);
|
|
|
|
if($new_record) {
|
|
return $controller->redirect($this->Link());
|
|
} elseif($this->gridField->getList()->byId($this->record->ID)) {
|
|
// Return new view, as we can't do a "virtual redirect" via the CMS Ajax
|
|
// to the same URL (it assumes that its content is already current, and doesn't reload)
|
|
return $this->edit($controller->getRequest());
|
|
} else {
|
|
// Changes to the record properties might've excluded the record from
|
|
// a filtered list, so return back to the main view if it can't be found
|
|
$noActionURL = $controller->removeAction($data['url']);
|
|
$controller->getRequest()->addHeader('X-Pjax', 'Content');
|
|
return $controller->redirect($noActionURL, 302);
|
|
}
|
|
}
|
|
|
|
public function doDelete($data, $form) {
|
|
$title = $this->record->Title;
|
|
try {
|
|
if (!$this->record->canDelete()) {
|
|
throw new ValidationException(
|
|
_t('GridFieldDetailForm.DeletePermissionsFailure',"No delete permissions"),0);
|
|
}
|
|
|
|
$this->record->delete();
|
|
} catch(ValidationException $e) {
|
|
$form->sessionMessage($e->getResult()->message(), 'bad', false);
|
|
return $this->getToplevelController()->redirectBack();
|
|
}
|
|
|
|
$message = sprintf(
|
|
_t('GridFieldDetailForm.Deleted', 'Deleted %s %s'),
|
|
$this->record->i18n_singular_name(),
|
|
htmlspecialchars($title, ENT_QUOTES)
|
|
);
|
|
|
|
$toplevelController = $this->getToplevelController();
|
|
if($toplevelController && $toplevelController instanceof LeftAndMain) {
|
|
$backForm = $toplevelController->getEditForm();
|
|
$backForm->sessionMessage($message, 'good', false);
|
|
} else {
|
|
$form->sessionMessage($message, 'good', false);
|
|
}
|
|
|
|
//when an item is deleted, redirect to the parent controller
|
|
$controller = $this->getToplevelController();
|
|
$controller->getRequest()->addHeader('X-Pjax', 'Content'); // Force a content refresh
|
|
|
|
return $controller->redirect($this->getBacklink(), 302); //redirect back to admin section
|
|
}
|
|
|
|
/**
|
|
* @param String
|
|
*/
|
|
public function setTemplate($template) {
|
|
$this->template = $template;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* @return String
|
|
*/
|
|
public function getTemplate() {
|
|
return $this->template;
|
|
}
|
|
|
|
/**
|
|
* @return Controller
|
|
*/
|
|
public function getController() {
|
|
return $this->popupController;
|
|
}
|
|
|
|
/**
|
|
* @return GridField
|
|
*/
|
|
public function getGridField() {
|
|
return $this->gridField;
|
|
}
|
|
|
|
/**
|
|
* @return DataObject
|
|
*/
|
|
public function getRecord() {
|
|
return $this->record;
|
|
}
|
|
|
|
/**
|
|
* CMS-specific functionality: Passes through navigation breadcrumbs
|
|
* to the template, and includes the currently edited record (if any).
|
|
* see {@link LeftAndMain->Breadcrumbs()} for details.
|
|
*
|
|
* @param boolean $unlinked
|
|
* @return ArrayData
|
|
*/
|
|
public function Breadcrumbs($unlinked = false) {
|
|
if(!$this->popupController->hasMethod('Breadcrumbs')) return;
|
|
|
|
$items = $this->popupController->Breadcrumbs($unlinked);
|
|
if($this->record && $this->record->ID) {
|
|
$title = ($this->record->Title) ? $this->record->Title : "#{$this->record->ID}";
|
|
$items->push(new ArrayData(array(
|
|
'Title' => $title,
|
|
'Link' => $this->Link()
|
|
)));
|
|
} else {
|
|
$items->push(new ArrayData(array(
|
|
'Title' => sprintf(_t('GridField.NewRecord', 'New %s'), $this->record->i18n_singular_name()),
|
|
'Link' => false
|
|
)));
|
|
}
|
|
|
|
return $items;
|
|
}
|
|
}
|