2007-07-19 12:40:28 +02:00
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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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2008-01-09 05:18:36 +01:00
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* @package forms
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* @subpackage fields-relational
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2007-07-19 12:40:28 +02:00
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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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2010-02-04 02:07:30 +01:00
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// If the value has been set, use that
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if($this->value != 'unchanged' && is_array($this->sourceObject)) {
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$items = array();
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$values = is_array($this->value) ? $this->value : preg_split('/ *, */', trim($this->value));
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foreach($values as $value) {
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$item = new stdClass;
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$item->ID = $value;
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$item->Title = $this->sourceObject[$value];
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$items[] = $item;
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}
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return $items;
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// Otherwise, look data up from the linked relation
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} else if($this->form) {
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2007-07-19 12:40:28 +02:00
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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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2010-02-12 03:05:33 +01:00
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2009-03-10 23:08:52 +01:00
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Requirements::add_i18n_javascript(SAPPHIRE_DIR . '/javascript/lang');
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2010-02-12 03:05:33 +01:00
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Requirements::javascript(SAPPHIRE_DIR . '/thirdparty/prototype/prototype.js');
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Requirements::javascript(SAPPHIRE_DIR . '/thirdparty/behaviour/behaviour.js');
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Requirements::javascript(SAPPHIRE_DIR . '/javascript/tree/tree.js');
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// needed for errorMessage()
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Requirements::javascript(SAPPHIRE_DIR . '/javascript/LeftAndMain.js');
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Requirements::javascript(SAPPHIRE_DIR . '/javascript/TreeSelectorField.js');
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Requirements::css(SAPPHIRE_DIR . '/javascript/tree/tree.css');
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Requirements::css(SAPPHIRE_DIR . '/css/TreeDropdownField.css');
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2007-07-19 12:40:28 +02:00
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2010-02-23 01:40:58 +01:00
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// Any field values have priority over the relation getters
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if($this->value) {
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$items = new DataObjectSet();
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$ids = explode(',', $this->value);
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foreach($ids as $id) {
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$item = DataObject::get_by_id($this->sourceObject, $id);
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if($item) $items->push($item);
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}
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} else {
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$items = $this->getItems();
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}
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if($items && $items->Count()) {
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2007-07-19 12:40:28 +02:00
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foreach($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(",", $idArray);
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}
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2010-02-23 01:40:58 +01:00
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}
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2007-07-19 12:40:28 +02:00
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$id = $this->id();
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return <<<HTML
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2010-02-04 02:07:30 +01:00
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<div class="TreeDropdownField multiple" href="{$this->Link()}"><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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2007-07-19 12:40:28 +02:00
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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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2008-11-03 14:47:40 +01:00
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$items = array();
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2007-07-19 12:40:28 +02:00
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$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($this->value) {
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2009-06-18 11:34:17 +02:00
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$items = preg_split("/ *, */", trim($this->value));
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2007-07-19 12:40:28 +02:00
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}
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// Allows you to modify the items on your object before save
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$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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2010-02-23 01:40:58 +01:00
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2007-07-19 12:40:28 +02:00
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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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2010-01-05 05:48:54 +01:00
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$field = new TreeMultiselectField_Readonly($this->name, $this->title, $this->sourceObject, $this->keyField, $this->labelField);
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$field->addExtraClass($this->extraClass());
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$field->setForm($this->form);
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2010-02-04 02:09:08 +01:00
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$field->setValue($this->value);
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2010-01-05 05:48:54 +01:00
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return $field;
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2009-06-17 13:36:49 +02:00
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}
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}
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class TreeMultiselectField_Readonly extends TreeMultiselectField {
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protected $readonly = true;
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function Field() {
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2010-02-04 05:29:21 +01:00
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$titleArray = $itemIDs = array();
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$titleList = $itemIDsList = "";
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2007-07-19 12:40:28 +02:00
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if($items = $this->getItems()) {
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foreach($items as $item) $titleArray[] = $item->Title;
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2010-02-04 05:29:21 +01:00
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foreach($items as $item) $itemIDs[] = $item->ID;
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2007-07-19 12:40:28 +02:00
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if($titleArray) $titleList = implode(", ", $titleArray);
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2010-02-04 05:29:21 +01:00
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if($itemIDs) $itemIDsList = implode(",", $itemIDs);
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2007-07-19 12:40:28 +02:00
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}
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2010-02-04 05:29:21 +01:00
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$field = new ReadonlyField($this->name.'_ReadonlyValue', $this->title);
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2007-07-19 12:40:28 +02:00
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$field->setValue($titleList);
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$field->setForm($this->form);
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2010-02-04 05:29:21 +01:00
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$valueField = new HiddenField($this->name);
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$valueField->setValue($itemIDsList);
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$valueField->setForm($this->form);
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return $field->Field().$valueField->Field();
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2007-07-19 12:40:28 +02:00
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}
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2009-06-17 13:36:49 +02:00
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}
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