mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-06-28 23:49:26 +02:00
94 lines
2.6 KiB
PHP
94 lines
2.6 KiB
PHP
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<?php
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/**
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* This formfield represents many-many joins using a tree selector shown in a dropdown styled element
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* which can be added to any form usually in the CMS.
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*
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*/
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class TreeMultiselectField extends TreeDropdownField {
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function __construct($name, $title, $sourceObject = "Group", $keyField = "ID", $labelField = "Title") {
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parent::__construct($name, $title, $sourceObject, $keyField, $labelField);
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$this->value = 'unchanged';
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}
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/**
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* Return this field's linked items
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*/
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function getItems() {
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if($this->form) {
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$fieldName = $this->name;
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$record = $this->form->getRecord();
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if(is_object($record) && $record->hasMethod($fieldName))
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return $record->$fieldName();
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}
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}
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/**
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* We overwrite the field attribute to add our hidden fields, as this
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* formfield can contain multiple values.
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*/
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function Field() {
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$value = '';
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$itemList = '';
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Requirements::javascript("sapphire/javascript/TreeSelectorField.js");
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$items = $this->getItems();
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if($items) {
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foreach($items as $item) {
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$titleArray[] =$item->Title;
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$idArray[] = $item->ID;
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}
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if(isset($titleArray)) {
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$itemList = implode(", ", $titleArray);
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$value = implode(",", $idArray);
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}
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}
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$id = $this->id();
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return <<<HTML
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<div class="TreeDropdownField multiple"><input id="$id" type="hidden" name="$this->name" value="$value" /><span class="items">$itemList</span><a href="#" title="open" class="editLink"> </a></div>
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HTML;
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}
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/**
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* Save the results into the form
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* Calls function $record->onChange($items) before saving to the assummed
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* Component set.
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*/
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function saveInto(DataObject $record) {
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// Detect whether this field has actually been updated
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if($this->value !== 'unchanged') {
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$fieldName = $this->name;
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$saveDest = $record->$fieldName();
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if(!$saveDest) user_error("TreeMultiselectField::saveInto() Field '$fieldName' not found on $record->class.$record->ID", E_USER_ERROR);
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if($this->value) {
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$items = split(" *, *", trim($this->value));
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}
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// Allows you to modify the items on your object before save
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$funcName = "onChange$fieldName";
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if($record->hasMethod($funcName)){
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$result = $record->$funcName($items);
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if(!$result){
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return;
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}
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}
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$saveDest->setByIDList($items);
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}
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}
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/**
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* Changes this field to the readonly field.
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*/
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function performReadonlyTransformation() {
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if($items = $this->getItems()) {
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foreach($items as $item) $titleArray[] = $item->Title;
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if($titleArray) $titleList = implode(", ", $titleArray);
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}
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$field = new ReadonlyField($this->name, $this->title);
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$field->setValue($titleList);
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$field->setForm($this->form);
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return $field;
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}
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}
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