silverstripe-framework/forms/RelatedDataEditor.php
Hayden Smith 4a5d9b03f8 Moved Sapphire module to open source path
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@39001 467b73ca-7a2a-4603-9d3b-597d59a354a9
2007-07-19 10:40:28 +00:00

154 lines
4.7 KiB
PHP
Executable File

<?php
/**
* RelatedDataEditor puts a "sub-form" into a form that lets you edit a record on the other side of a
* one-to-many relationship. For example, you could be editing a workshop, and you want to provide fields
* to edit the client contact for that workshop.
*
* RelatedDataEditor inserts a dropdown field and a number of developer-specified additional fields into the
* system
*/
class RelatedDataEditor extends FormField {
protected $children;
protected $dropdownField;
protected $isNested;
protected $showkeydropdown;
/**
* @param name The name of the relationship
* @param dropdown The values listed in the dropdown
* @param fields The fields to show
*/
function __construct($name, $dropdownField, $fields = null, $dropdownClass = 'relatedDataKey', $showKeyDropdown = true) {
Requirements::css("sapphire/css/RelatedDataEditor.css");
parent::__construct($name);
$this->dropdownField = $dropdownField;
$this->children = $fields;
$this->dropdownField->extraClass = $dropdownClass;
$this->showkeydropdown = $showKeyDropdown;
}
function transform(FormTransformation $trans){
$this->dropdownField->transform($trans);
if($this->children){
$children=array();
foreach($this->children as $child){
$child = $child->transform($trans);
$children[] = $child;
}
$this->children = $children;
}
return $this;
}
function IsNested(){
return $this->isNested;
}
function FieldHolder() {
$fieldName = $this->name . 'ID';
$relationName = $this->name;
Profiler::mark("RelatedDataEditor.FieldHolder", "get data");
$record = $this->form->getRecord();
$relatedObject = $record->$relationName();
Profiler::unmark("RelatedDataEditor.FieldHolder", "get data");
$this->dropdownField->Name = $this->name . '[ID]';
$this->dropdownField->Value = $record->$fieldName;
$extraclass = $this->IsNested()?"nested":"";
$result .= "<div id=\"$this->name\" class=\"$this->class groupfield $extraclass\" >";
$fieldholder = $this->dropdownField->FieldHolder();
if($this->showkeydropdown){
$result .= "<div id=\"{$this->name}_keyholder\" class=\"keyholder\">$fieldholder</div>";
if($this->children){
$result .= "<img id=\"{$this->name}_loading\" src=\"cms/images/network-save.gif\" style=\"display: none;\" />";
$result .= "<img id=\"{$this->name}_loaded\" src=\"cms/images/alert-good.gif\" style=\"display: none;\" />";
}
}else{
$result .= "<div id=\"{$this->name}_keyholder\" class=\"keyholder\" style=\"display: none\">$fieldholder</div>";
}
if($this->children){
$result .= "<div id= \"{$this->name}_childrenholder\" class=\"children_holder\">";
foreach($this->children as $child) {
if(!$child->isComposite()){
$childFieldName = $child->Name();
$child->Name = $this->name . '[' . $child->Name() . ']';
if($this->dropdownField->isSelected()) $child->Value = $relatedObject->$childFieldName;
$child->setForm($this->form);
$result .= $child->FieldHolder();
}else{
$fs = $child->FieldSet();
foreach($fs as $subfield){
$childFieldName = $subfield->Name();
$subfield->Name = $this->name . '[' . $subfield->Name() . ']';
if($this->dropdownField->isSelected()) $subfield->Value = $relatedObject->$childFieldName;
$subfield->setForm($this->form);
}
$result .= $child->FieldHolder();
}
}
$result .= "<div class=\"clear\">&nbsp;</div>";
$result .= "</div>";
}
$result .= "</div>";
return $result;
}
function saveInto($record) {
$fieldName = $this->name . 'ID';
$relationName = $this->name;
//If value[newID] exists, this is a newly added related data.
if($this->value['newID'])
$this->value['ID']=$this->value['newID'];
//if value['ID'] == 0, nothing needs to be saved
if($this->value['ID'] == 0){
$record->$fieldName = 0;
return;
}
// Set the relation ID and look up the related object from the database
$record->$fieldName = $this->value['ID'];
$relatedObject = $record->$relationName();
$this->compositeSaveInto($relatedObject);
$relatedID = $relatedObject->write();
if($relatedID != $this->value['ID']){
$record->$fieldName = $relatedID;
}
}
/**
* Smart, "form-like" saveInto, to allow for nested RelatedDataEditors
*/
function compositeSaveInto($dataObject) {
if($this->children) foreach($this->children as $child){
if($child->isComposite()){
$dataFields = $child->FieldSet()->dataFields();
foreach($dataFields as $field) {
$fieldVal = $this->value[$field->Name()];
$field->setValue($fieldVal);
if($field->Name() != "ID") $field->saveInto($dataObject);
}
}else{
$fieldVal = $this->value[$child->Name()];
$child->setValue($fieldVal);
if($child->Name() != "ID") $child->saveInto($dataObject);
}
}
}
}
?>