silverstripe-userforms/code/editor/FieldEditor.php

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<?php
/**
* Allows CMS user to create forms dynamically.
*
* @package userforms
*/
class FieldEditor extends FormField {
protected $hasFormOptions = true;
function FieldHolder() {
return $this->renderWith("FieldEditor");
}
/**
* Can a user edit this field?
* @return boolean
*/
public function canEdit() {
if($this->readonly) return false;
return $this->form->getRecord()->canEdit();
}
/**
* Can a user delete this field?
* @return boolean
*/
public function canDelete() {
if($this->readonly) return false;
return $this->form->getRecord()->canDelete();
}
function performReadonlyTransformation() {
$this->readonly = true;
$fields = $this->Fields();
if($fields) foreach($fields as $field) {
$field->setReadonly();
}
return $this->customise(array('Fields' => $fields));
}
/**
* Return the Form Fields for the user forms
*
* @return DataObjectSet
*/
function Fields() {
Requirements::css("userforms/css/FieldEditor.css");
Requirements::javascript("jsparty/jquery/ui/ui.core.js");
Requirements::javascript("jsparty/jquery/ui/ui.sortable.js");
Requirements::javascript("userforms/javascript/UserForm.js");
$relationName = $this->name;
$fields = $this->form->getRecord()->$relationName();
if($fields) {
foreach($fields as $field) {
if(!$this->canEdit()) {
if(is_a($field, 'FormField')) {
$fields->remove($field);
$fields->push($field->performReadonlyTransformation());
}
}
$field->setEditor($this);
}
}
return $fields;
}
/**
* Return a DataObjectSet of all the addable fields to populate
* the add field menu
*
* @return DataObjectSet
*/
function CreatableFields() {
$fields = ClassInfo::subclassesFor('EditableFormField');
if($fields) {
array_shift($fields); // get rid of subclass 0
asort($fields); // get in order
$output = new DataObjectSet();
foreach($fields as $field => $title) {
// get the nice title and strip out field
$niceTitle = trim(eval("return $title::\$singular_name;"));
if($niceTitle) {
$output->push(new ArrayData(array(
'ClassName' => $field,
'Title' => "$niceTitle"
)));
}
}
return $output;
}
return false;
}
/**
* Handles saving the page. Needs to keep an eye on fields
* and options which have been removed / added
*
* @param DataObject Record to Save it In
*/
function saveInto(DataObject $record) {
$name = $this->name;
$fieldSet = $record->$name();
// @todo shouldn't we deal with customFormActions on that object?
$record->EmailOnSubmit = isset($_REQUEST[$name]['EmailOnSubmit']) ? "1" : "0";
$record->SubmitButtonText = isset($_REQUEST[$name]['SubmitButtonText']) ? $_REQUEST[$name]['SubmitButtonText'] : "";
$record->ShowClearButton = isset($_REQUEST[$name]['ShowClearButton']) ? "1" : "0";
// store the field IDs and delete the missing fields
// alternatively, we could delete all the fields and re add them
$missingFields = array();
foreach($fieldSet as $existingField) {
$missingFields[$existingField->ID] = $existingField;
}
if(isset($_REQUEST[$name]) && is_array($_REQUEST[$name])) {
foreach($_REQUEST[$name] as $newEditableID => $newEditableData) {
if(!is_numeric($newEditableID)) continue;
// get it from the db
$editable = DataObject::get_by_id('EditableFormField', $newEditableID);
// if it exists in the db update it
if($editable) {
// remove it from the removed fields list
if(isset($missingFields[$editable->ID]) && isset($newEditableData) && is_array($newEditableData)) {
unset($missingFields[$editable->ID]);
}
// set form id
if($editable->ParentID == 0) {
$editable->ParentID = $record->ID;
}
// save data
$editable->populateFromPostData($newEditableData);
}
}
}
// remove the fields not saved
if($this->canEdit()) {
foreach($missingFields as $removedField) {
if(is_numeric($removedField->ID)) {
// check we can edit this
$removedField->delete();
}
}
}
if($record->hasMethod('customFormSave')) {
$record->customFormSave($_REQUEST[$name], $record);
}
if($record->hasMethod('processNewFormFields')) {
$record->processNewFormFields();
}
}
/**
* Add a field to the field editor. Called via a ajax get request
* from the userdefinedform javascript
*
* @return bool|html
*/
public function addfield() {
// get the last field in this form editor
$parentID = $this->form->getRecord()->ID;
if($parentID) {
$parentID = Convert::raw2sql($parentID); // who knows what could happen
if(defined('Database::USE_ANSI_SQL')) {
$highestSort = DB::query("SELECT MAX(\"Sort\") FROM \"EditableFormField\" WHERE \"ParentID\" = '$parentID'");
} else {
$highestSort = DB::query("SELECT MAX(Sort) FROM EditableFormField WHERE ParentID = '$parentID'");
}
$sort = $highestSort->value() + 1;
$className = (isset($_REQUEST['Type'])) ? $_REQUEST['Type'] : '';
if(!$className) user_error('Please select a field type to created', E_USER_WARNING);
if(is_subclass_of($className, "EditableFormField")) {
$field = new $className();
$field->write();
$field->ParentID = $this->form->getRecord()->ID;
2009-04-20 03:02:26 +02:00
$field->Name = $field->class . $field->ID;
$field->Sort = $sort;
$field->write();
return $field->EditSegment();
}
}
return false;
}
/**
* Return the html for a field option such as a
* dropdown field or a radio check box field
*
* @return bool|html
*/
public function addoptionfield() {
// passed via the ajax
$parent = (isset($_REQUEST['Parent'])) ? $_REQUEST['Parent'] : false;
// work out the sort by getting the sort of the last field in the form +1
if($parent) {
$sql_parent = Convert::raw2sql($parent);
if(defined('Database::USE_ANSI_SQL')) {
$highestSort = DB::query("SELECT MAX(\"Sort\") FROM \"EditableOption\" WHERE \"ParentID\" = '$sql_parent'");
} else {
$highestSort = DB::query("SELECT MAX(Sort) FROM EditableOption WHERE ParentID = '$sql_parent'");
}
$sort = $highestSort->value() + 1;
if($parent) {
$object = new EditableOption();
$object->write();
$object->ParentID = $parent;
$object->Sort = $sort;
$object->Name = 'option' . $object->ID;
$object->write();
return $object->EditSegment();
}
}
return false;
}
function setHasFormOptions($bool){
$this->hasFormOptions = $bool;
}
function hasFormOptions(){
return $this->hasFormOptions;
}
function FormOptions() {
if($this->hasFormOptions()){
if($this->form->getRecord()->hasMethod('customFormActions')) {
$newFields = $this->form->getRecord()->customFormActions($this->readonly);
foreach($newFields as $newField) {
$newField->setName("{$this->name}[{$newField->Name()}]" );
}
if($this->readonly) {
$newFields = $newFields->makeReadonly();
}
return $newFields;
}
}
}
}
?>