silverstripe-framework/forms/CheckboxSetField.php

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<?php
/**
* Displays a set of checkboxes as a logical group.
*
* ASSUMPTION -> IF you pass your source as an array, you pass values as an array too.
* Likewise objects are handled the same.
* @package forms
* @subpackage fields-basic
*/
class CheckboxSetField extends OptionsetField {
protected $disabled = false;
/**
* Object handles arrays and dosets being passed by reference.
*
* @todo Should use CheckboxField FieldHolder rather than constructing own markup.
*/
function Field() {
Requirements::css(SAPPHIRE_DIR . '/css/CheckboxSetField.css');
$values = $this->value;
// Get values from the join, if available
if(is_object($this->form)) {
$record = $this->form->getRecord();
if(!$values && $record && $record->hasMethod($this->name)) {
$funcName = $this->name;
$join = $record->$funcName();
if($join) foreach($join as $joinItem) $values[] = $joinItem->ID;
}
}
$source = $this->source;
if(!is_array($source) && !is_a($source, 'SQLMap')){
// Source and values are DataObject sets.
if(is_array($values)) {
$items = $values;
} else {
if($values&&is_a($values, "DataObjectSet")){
foreach($values as $object){
if( is_a( $object, 'DataObject' ) )
$items[] = $object->ID;
}
}elseif($values&&is_string($values)){
$items = explode(',', $values);
$items = str_replace('{comma}', ',', $items);
}
}
} else {
// Sometimes we pass a singluar default value
// thats ! an array && !DataObjectSet
if(is_a($values,'DataObjectSet') || is_array($values))
$items = $values;
else{
$items = explode(',',$values);
$items = str_replace('{comma}', ',', $items);
}
}
if(is_array($source)){
// Commented out to fix "'Specific newsletters' option in 'newsletter subscription form' page type does not work" bug
// See: http://www.silverstripe.com/bugs/flat/1675
// unset($source[0]);
unset($source['']);
}
$odd = 0;
$options = '';
foreach($source as $index => $item) {
if(is_a($item,'DataObject')) {
$key = $item->ID;
$value = $item->Title;
} else {
$key = $index;
$value = $item;
}
$odd = ($odd + 1) % 2;
$extraClass = $odd ? "odd" : "even";
$extraClass .= " val" . str_replace(' ','',$key);
$itemID = $this->id() . "_" . ereg_replace('[^a-zA-Z0-9]+','',$key);
$checked ="";
if(isset($items)){
in_array($key,$items) ? $checked = " checked=\"checked\"" : $checked = "";
}
$this->disabled ? $disabled = " disabled=\"disabled\"" : $disabled = "";
$options .= "<li class=\"$extraClass\"><input id=\"$itemID\" name=\"$this->name[$key]\" type=\"checkbox\" value=\"$key\"$checked $disabled class=\"checkbox\" /> <label for=\"$itemID\">$value</label></li>\n";
}
return "<ul id=\"{$this->id()}\" class=\"optionset\">\n$options</ul>\n";
}
function setDisabled($val) {
$this->disabled = $val;
}
/**
* Load a value into this CheckboxSetField
*/
function setValue($value, $obj = null) {
// If we're not passed a value directly, we can look for it in a relation method on the object passed as a second arg
if(!$value && $obj && $obj instanceof DataObject && $obj->hasMethod($this->name)) {
$funcName = $this->name;
$selected = $obj->$funcName();
$value = $selected->toDropdownMap('ID','ID');
}
parent::setValue($value, $obj);
}
/**
* Save the current value of this CheckboxSetField into a DataObject.
* If the field it is saving to is a has_many or many_many relationship,
* it is saved by setByIDList(), otherwise it creates a comma separated
* list for a standard DB text/varchar field.
*
* @param DataObject $record The record to save into
*/
function saveInto(DataObject $record) {
$fieldname = $this->name ;
if($fieldname && $record && ($record->has_many($fieldname) || $record->many_many($fieldname))) {
$idList = array();
if($this->value) foreach($this->value as $id => $bool) {
if($bool) $idList[] = $id;
}
$record->$fieldname()->setByIDList($idList);
} elseif($fieldname && $record) {
if($this->value) {
$this->value = str_replace(",", "{comma}", $this->value);
$record->$fieldname = implode(",", $this->value);
} else {
$record->$fieldname = '';
}
}
}
/**
* Return the CheckboxSetField value, as an array of the selected item keys
*/
function dataValue() {
if($this->value&&is_array($this->value)){
// Filter items to those who aren't 0
$filtered = array();
foreach($this->value as $item) if($item) $filtered[] = str_replace(",", "{comma}", $item);
return implode(",", $filtered);
} else {
return '';
}
}
function performDisabledTransformation() {
$this->setDisabled(true);
return $this;
}
/**
* Makes a pretty readonly field
*/
function performReadonlyTransformation() {
$values = '';
$items = $this->value;
foreach($this->source as $source) {
if(is_object($source)) {
$sourceTitles[$source->ID] = $source->Title;
}
}
if($items){
// Items is a DO Set
if(is_a($items,'DataObjectSet')){
foreach($items as $item){
$data[] = $item->Title;
}
if($data) {
$values = implode(", ",$data);
}
// Items is an array or single piece of string (including comma seperated string)
}else{
if(!is_array($items)) {
$items = split(" *, *", trim($items));
}
foreach($items as $item){
if(is_array($item)) {
$data[] = $item['Title'];
} else if(is_array($this->source) && !empty($this->source[$item])) {
$data[] = $this->source[$item];
} else if(is_a($this->source, "ComponentSet")){
//added for editable checkboxset.
$data[] = $sourceTitles[$item];
} else {
$data[] = $item;
}
}
$values = implode(", ",$data);
}
}
$field = new ReadonlyField($this->name,$this->title ? $this->title : "",$values);
$field->setForm($this->form);
return $field;
}
function ExtraOptions() {
return FormField::ExtraOptions();
}
}
?>