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.
*
* @todo Document the different source data that can be used
* with this form field - e.g ComponentSet, DataObjectSet,
* array. Is it also appropriate to accept so many different
* types of data when just using an array would be appropriate?
*
* @todo Make use of FormField->createTag() to generate the
* HTML tag(s) for this field.
*
* @package forms
* @subpackage fields-basic
*/
class CheckboxSetField extends OptionsetField {
protected $disabled = false;
/**
* @todo Explain different source data that can be used with this field,
* e.g. SQLMap, DataObjectSet or an array.
*
* @todo Should use CheckboxField FieldHolder rather than constructing own markup.
*/
function Field() {
Requirements::css(SAPPHIRE_DIR . '/css/CheckboxSetField.css');
$source = $this->source;
$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[] = $joinItem->ID;
}
}
}
}
// Source is not an array
if(!is_array($source) && !is_a($source, 'SQLMap')) {
if(is_array($values)) {
$items = $values;
} else {
// Source and values are DataObject sets.
if($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)) {
unset($source['']);
}
$odd = 0;
$options = '';
if($source) 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)) {
$checked = (in_array($key, $items)) ? ' checked="checked"' : '';
}
$disabled = ($this->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 checkboxsetfield{$this->extraClass()}\">\n$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
* selected item keys.
*
* @return string
*/
function dataValue() {
if($this->value && is_array($this->value)) {
$filtered = array();
foreach($this->value as $item) {
if($item) {
$filtered[] = str_replace(",", "{comma}", $item);
}
}
return implode(',', $filtered);
}
return '';
}
function performDisabledTransformation() {
$clone = clone $this;
$clone->setDisabled(true);
return $clone;
}
/**
* Transforms the source data for this CheckboxSetField
* into a comma separated list of values.
*
* @return ReadonlyField
*/
function performReadonlyTransformation() {
$values = '';
$data = array();
$items = $this->value;
if($this->source) {
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)) {
$items = preg_split('/ *, */', trim($items));
}
foreach($items as $item) {
if(is_array($item)) {
$data[] = $item['Title'];
} elseif(is_array($this->source) && !empty($this->source[$item])) {
$data[] = $this->source[$item];
} elseif(is_a($this->source, 'DataObjectSet')) {
$data[] = $sourceTitles[$item];
} else {
$data[] = $item;
}
}
$values = implode(', ', $data);
}
}
$title = ($this->title) ? $this->title : '';
$field = new ReadonlyField($this->name, $title, $values);
$field->setForm($this->form);
return $field;
}
function ExtraOptions() {
return FormField::ExtraOptions();
}
}
?>