silverstripe-framework/forms/TableField.php

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<?php
/**
* TableField behaves in the same manner as TableListField, however allows the addition of
* fields and editing of attributes specified, and filtering results.
*
* Caution: If you insert DropdownFields in the fieldTypes-array, make sure they have an empty first option.
* Otherwise the saving can't determine if a new row should really be saved.
*
* Caution: TableField relies on {@FormResponse} to reload the field after it is saved.
* A TableField-instance should never be saved twice without reloading, because otherwise it
* can't determine if a field is new (=create) or existing (=update), and will produce duplicates.
*
* @param $name string The fieldname
* @param $sourceClass string The source class of this field
* @param $fieldList array An array of field headings of Fieldname => Heading Text (eg. heading1)
* @param $fieldTypes array An array of field types of fieldname => fieldType (eg. formfield). Do not use for extra data/hiddenfields.
* @param $filterField string The field to filter by. Give the filter value in $sourceFilter. The value will automatically be set on new records.
* @param $sourceFilter string If $filterField has a value, then this is the value to filter by. Otherwise, it is a SQL filter expression.
* @param $editExisting boolean (Note: Has to stay on this position for legacy reasons)
* @param $sourceSort string
* @param $sourceJoin string
*
* @todo We should refactor this to support a single FieldSet instead of evaluated Strings for building FormFields
*
* @package forms
* @subpackage fields-relational
*/
class TableField extends TableListField {
protected $sourceClass;
protected $sourceFilter;
protected $fieldList;
/**
* A "Field = Value" filter can be specified by setting $this->filterField and $this->filterValue. This has the advantage of auto-populating
* new records
*/
protected $filterField = null;
/**
* A "Field = Value" filter can be specified by setting $this->filterField and $this->filterValue. This has the advantage of auto-populating
* new records
*/
protected $filterValue = null;
/**
* @var $fieldTypes FieldSet
* Caution: Use {@setExtraData()} instead of manually adding HiddenFields if you want to
* preset relations or other default data.
*/
protected $fieldTypes;
protected $sourceSort;
protected $sourceJoin;
/**
* @var $template string Template-Overrides
*/
protected $template = "TableField";
/**
* @var $extraData array Any extra data that need to be included, e.g. to retain
* has-many relations. Format: array('FieldName' => 'Value')
*/
protected $extraData;
protected $tempForm;
/**
* Influence output without having to subclass the template.
*/
protected $permissions = array(
"edit",
"delete",
"add",
//"export",
);
public $transformationConditions = array();
/**
* @var $requiredFields array Required fields as a numerical array.
* Please use an instance of Validator on the including
* form.
*/
protected $requiredFields = null;
/**
* Shows a row of empty fields for adding a new record
* (turned on by default).
* Please use {@link TableField::$permissions} to control
* if the "add"-functionality incl. button is shown at all.
*
* @param boolean $showAddRow
*/
public $showAddRow = true;
function __construct($name, $sourceClass, $fieldList = null, $fieldTypes, $filterField = null,
$sourceFilter = null, $editExisting = true, $sourceSort = null, $sourceJoin = null) {
$this->fieldTypes = $fieldTypes;
$this->filterField = $filterField;
$this->editExisting = $editExisting;
// If we specify filterField, then an implicit source filter of "filterField = sourceFilter" is used.
if($filterField) {
$this->filterValue = $sourceFilter;
$sourceFilter = "`$filterField` = '" . Convert::raw2sql($sourceFilter) . "'";
}
parent::__construct($name, $sourceClass, $fieldList, $sourceFilter, $sourceSort, $sourceJoin);
Requirements::javascript('sapphire/javascript/TableField.js');
}
/**
* Displays the headings on the template
*
* @return DataObjectSet
*/
function Headings() {
$i=0;
foreach($this->fieldList as $fieldName => $fieldTitle) {
$extraClass = "col".$i;
$class = $this->fieldTypes[$fieldName];
if(is_object($class)) $class = "";
$class = $class." ".$extraClass;
$headings[] = new ArrayData(array("Name" => $fieldName, "Title" => $fieldTitle, "Class" => $class));
$i++;
}
return new DataObjectSet($headings);
}
/**
* Calculates the number of columns needed for colspans
* used in template
*
* @return int
*/
function ItemCount() {
return count($this->fieldList);
}
/**
* Returns the databased saved items, from DataObjects
*
* @return DataObjectSet
*/
function sourceItems() {
if($this->customSourceItems) {
$items = $this->customSourceItems;
} elseif($this->cachedSourceItems) {
$items = $this->cachedSourceItems;
} else {
// get query
$dataQuery = $this->getQuery();
// get data
$records = $dataQuery->execute();
$items = singleton($this->sourceClass)->buildDataObjectSet($records);
}
return $items;
}
/**
* Displays the items from sourceItems using the encapsulation object
*
* @return DataObjectSet
*/
function Items() {
$output = new DataObjectSet();
if($items = $this->sourceItems()) {
foreach ($items as $item) {
// Load the data in to a temporary form (for correct field types)
$fieldset = $this->FieldSetForRow();
if($fieldset){
$form = new Form($this, null, $fieldset, new FieldSet());
$form->loadDataFrom($item);
// Add the item to our new DataObjectSet, with a wrapper class.
$output->push(new TableField_Item($item, $this, $form, $this->fieldTypes));
}
}
}
// Create a temporary DataObject
if($this->Can('add')) {
if($this->showAddRow){
$output->push(new TableField_Item(null, $this, null, $this->fieldTypes, true));
}
}
return $output;
}
/**
* Get all fields for each row contained in the TableField.
* Does not include the empty row.
*
* @return array
*/
function FieldSet() {
$fields = array ();
if($items = $this->sourceItems()) {
foreach($items as $item) {
// Load the data in to a temporary form (for correct field types)
$fieldset = $this->FieldSetForRow();
if ($fieldset)
{
// TODO Needs to be attached to a form existing in the DOM-tree
$form = new Form($this, 'EditForm', $fieldset, new FieldSet());
$form->loadDataFrom($item);
$row = new TableField_Item($item, $this, $form, $this->fieldTypes);
$fields = array_merge($fields, $row->Fields()->toArray());
}
}
}
return $fields;
}
function SubmittedFieldSet(&$sourceItems){
$fields = array ();
if($rows = $_POST[$this->name]){
if(count($rows)){
foreach($rows as $idx => $row){
if($idx == 'new'){
$newitems = ArrayLib::invert($row);
if(count($newitems)){
$sourceItems = new DataObjectSet();
foreach($newitems as $k => $newitem){
$fieldset = $this->FieldSetForRow();
if($fieldset){
$newitem[ID] = "new".$k;
foreach($newitem as $k => $v){
if(array_key_exists($k, $this->extraData)){
unset($newitem[$k]);
}
}
$sourceItem = new DataObject($newitem);
if(!$sourceItem->isEmpty()){
$sourceItems->push($sourceItem);
$form = new Form($this, "EditForm", $fieldset, new FieldSet());
$form->loadDataFrom($sourceItem);
$item = new TableField_Item($sourceItem, $this, $form, $this->fieldTypes);
$fields = array_merge($fields, $item->Fields()->toArray());
}
}
}
}
}
}
}
}
return $fields;
}
/**
* @return array
*/
function FieldList() {
return $this->fieldList;
}
/**
* Saves the Dataobjects contained in the field
*/
function saveInto(DataObject $record) {
// CMS sometimes tries to set the value to one.
if(is_array($this->value)){
// Sort into proper array
$this->value = ArrayLib::invert($this->value);
$dataObjects = $this->sortData($this->value, $record->ID);
if($dataObjects['new']) {
$newFields = $this->sortData($dataObjects['new'], $record->ID);
}
$savedObj = $this->saveData($dataObjects, $this->editExisting);
if($savedObj && $newFields) {
$savedObj += $this->saveData($newFields,false);
} else if($newFields) {
$savedObj = $this->saveData($newFields,false);
}
$items = $this->sourceItems();
FormResponse::update_dom_id($this->id(), $this->FieldHolder());
}
}
/**
* Get all fields in a single row.
*
* @return FieldSet
*/
function FieldSetForRow() {
$fieldset = new FieldSet();
if($this->fieldTypes){
foreach($this->fieldTypes as $key => $fieldType) {
if(isset($fieldType->class) && is_subclass_of($fieldType, 'FormField')) {
// using clone, otherwise we would just add stuff to the same field-instance
$field = clone $fieldType;
} elseif(strpos($fieldType, '(') === false) {
$field = new $fieldType($key);
} else {
$fieldName = $key;
$fieldTitle = "";
$field = eval("return new $fieldType;");
}
if($this->IsReadOnly || !$this->Can('edit')) {
$field = $field->performReadonlyTransformation();
}
$fieldset->push($field);
}
}else{
USER_ERROR("TableField::FieldSetForRow() - Fieldtypes were not specified",E_USER_WARNING);
}
return $fieldset;
}
function performReadonlyTransformation() {
$this->permissions = array('show');
$this->setReadonly(true);
return $this;
}
function performDisabledTransformation() {
$this->permissions = array('show');
$this->setDisabled(true);
return $this;
}
/**
* Needed for Form->callfieldmethod.
*/
public function getField($fieldName, $combinedFieldName = null) {
$fieldSet = $this->FieldSetForRow();
$field = $fieldSet->dataFieldByName($fieldName);
if(!$field) {
return false;
}
if($combinedFieldName) {
$field->Name = $combinedFieldName;
}
return $field;
}
/**
* Called on save, it creates the appropriate objects and writes them
* to the database.
*/
function saveData($dataObjects,$ExistingValues = true) {
$savedObj = array();
$fieldset = $this->FieldSetForRow();
// add hiddenfields
if($this->extraData) {
foreach($this->extraData as $fieldName => $fieldValue) {
$fieldset->push(new HiddenField($fieldName));
}
}
$form = new Form($this, null, $fieldset, new FieldSet());
if($dataObjects) {
foreach ($dataObjects as $objectid => $fieldValues) {
// we have to "sort" new data first, and process it in a seperate saveData-call (see setValue())
if($objectid === "new") continue;
// extra data was creating fields, but
if($this->extraData) {
$fieldValues = array_merge( $this->extraData, $fieldValues );
}
$hasData = false;
$obj = new $this->sourceClass();
if($ExistingValues) {
$obj->ID = $objectid;
}
// Legacy: Use the filter as a predefined relationship-ID
if($this->filterField && $this->filterValue) {
$filterField = $this->filterField;
$obj->$filterField = $this->filterValue;
}
// Determine if there is changed data for saving
$dataFields = array();
foreach($fieldValues as $type => $value) {
if(is_array($this->extraData)){ // if the field is an actual datafield (not a preset hiddenfield)
if(!in_array($type, array_keys($this->extraData))) {
$dataFields[$type] = $value;
}
} else { // all fields are real
$dataFields[$type] = $value;
}
}
$dataValues = ArrayLib::array_values_recursive($dataFields);
foreach($dataValues as $value) {
if(!empty($value)) {
$hasData = true;
}
}
// save
if($hasData) {
$form->loadDataFrom($fieldValues, true);
$form->saveInto($obj);
$objectid = $obj->write();
$savedObj[$objectid] = "Updated";
}
}
return $savedObj;
} else {
return false;
}
}
/**
* organises the data in the appropriate manner for saving
*/
function sortData($data, $recordID = null) {
$dataObjects = array();
if($data) {
$dataObjects = array();
foreach($data as $field => $rowData) {
$i = 0;
$blank = 0;
if(!is_array($rowData)) continue;
foreach($rowData as $id => $value) {
if($value == '$RecordID') $value = $recordID;
if($value){
$dataObjects[$id][$field] = $value;
}else{
$blank++;
}
$i++;
}
// TODO ADD stuff for removing rows with incomplete data
}
return $dataObjects;
}
}
/**
* @param $extraData array
*/
function setExtraData($extraData) {
$this->extraData = $extraData;
}
/**
* @return array
*/
function getExtraData() {
return $this->extraData;
}
/**
* Sets the template to be rendered with
*/
function FieldHolder() {
return $this->renderWith($this->template);
}
/**
* @return Int
*/
function sourceID() {
return $this->filterField;
}
/**
* @return String
*/
function delete() {
$childId = Convert::raw2sql($_REQUEST['childID']);
if (is_numeric($childId)) {
$childObject = DataObject::get_by_id($this->sourceClass, $childId);
if($childObject) {
$childObject->delete();
return 1;
}
}else{
return 0;
}
}
function setTransformationConditions($conditions) {
$this->transformationConditions = $conditions;
}
/**
* Validation
*/
function jsValidation() {
$js = "";
$fields = $this->FieldSet();
$fields = new FieldSet($fields);
// TODO doesn't automatically update validation when adding a row
foreach($fields as $field) {
//if the field type has some special specific specification for validation of itself
$js .= $field->jsValidation($this->form->class."_".$this->form->Name());
}
// TODO Implement custom requiredFields
$items = $this->sourceItems();
if($items && $this->requiredFields && $items->count()) {
foreach ($this->requiredFields as $field) {
/*if($fields->dataFieldByName($field)) {
$js .= "\t\t\t\t\trequire('$field');\n";
}*/
foreach($items as $item){
$cellName = $this->Name().'['.$item->ID.']['.$field.']';
$js .= "\n";
if($fields->dataFieldByName($cellName)) {
$js .= <<<JS
if(typeof fromAnOnBlur != 'undefined'){
if(fromAnOnBlur.name == '$cellName')
require(fromAnOnBlur);
}else{
require('$cellName');
}
JS;
}
}
}
}
return $js;
}
function php($data) {
$valid = true;
if($data['methodName'] != 'delete'){
$fields = $this->FieldSet();
$fields = new FieldSet($fields);
}else{
return $valid;
}
}
function validate($validator){
$valid = true;
$fields = $this->SubmittedFieldSet($sourceItemsNew);
$fields = new FieldSet($fields);
foreach($fields as $field){
$valid = $field->validate($validator)&&$valid;
}
//debug::show($this->form->Message());
if($this->requiredFields&&$sourceItemsNew&&$sourceItemsNew->count()) {
foreach ($this->requiredFields as $field) {
foreach($sourceItemsNew as $item){
$cellName = $this->Name().'['.$item->ID.']['.$field.']';
$cName = $this->Name().'[new]['.$field.'][]';
if($fieldObj = $fields->dataFieldByName($cellName)) {
if(!trim($fieldObj->Value())){
$title = $fieldObj->Title();
$errorMessage .= sprintf(
_t('TableField.ISREQUIRED', "In %s '%s' is required."),
$this->name,
$title
);
$errorMessage .= "<br />";
}
}
}
}
}
if($errorMessage){
$messageType .= "validation";
$message .= "<br />".$errorMessage;
$validator->validationError($this->name, $message, $messageType);
}
return $valid;
}
function setRequiredFields($fields) {
$this->requiredFields = $fields;
}
}
/**
* Single record in a TableField.
* @package forms
* @subpackage fields-relational
* @see TableField
*/
class TableField_Item extends TableListField_Item {
protected $fields;
protected $data;
protected $fieldTypes;
protected $isAddRow;
protected $extraData;
/**
* Each row contains a dataobject with any number of attributes
* @param $ID int The ID of the record
* @param $form Form A Form object containing all of the fields for this item. The data should be loaded in
* @param $fieldTypes array An array of name => fieldtype for use when creating a new field
* @param $parent TableListField The parent table for quick reference of names, and id's for storing values.
*/
function __construct($item = null, $parent, $form, $fieldTypes, $isAddRow = false) {
$this->data = $form;
$this->fieldTypes = $fieldTypes;
$this->isAddRow = $isAddRow;
$this->item = $item;
parent::__construct(($this->item) ? $this->item : new DataObject(), $parent);
$this->fields = $this->createFields();
}
/**
* Represents each cell of the table with an attribute
*/
function createFields() {
// Existing record
if($this->item && $this->data) {
$form = $this->data;
$this->fieldset = $form->Fields();
$this->fieldset->removeByName('SecurityID');
if($this->fieldset) {
$i=0;
foreach($this->fieldset as $field) {
$origFieldName = $field->Name();
// set unique fieldname with id
$combinedFieldName = $this->parent->Name() . "[" . $this->ID . "][" . $origFieldName . "]";
if($this->isAddRow) $combinedFieldName .= '[]';
// get value
if(strpos($origFieldName,'.') === false) {
$value = $field->dataValue();
} else {
// this supports the syntax fieldName = Relation.RelatedField
$fieldNameParts = explode('.', $origFieldName) ;
$tmpItem = $this->item;
for($j=0;$j<sizeof($fieldNameParts);$j++) {
$relationMethod = $fieldNameParts[$j];
$idField = $relationMethod . 'ID';
if($j == sizeof($fieldNameParts)-1) {
$value = $tmpItem->$relationMethod;
} else {
$tmpItem = $tmpItem->$relationMethod();
}
}
}
$field->Name = $combinedFieldName;
$field->setValue($field->dataValue());
$field->addExtraClass('col'.$i);
$field->setForm($this->data);
// transformation
if(isset($this->parent->transformationConditions[$origFieldName])) {
$transformation = $this->parent->transformationConditions[$origFieldName]['transformation'];
$rule = str_replace("\$","\$this->item->", $this->parent->transformationConditions[$origFieldName]['rule']);
$ruleApplies = null;
eval('$ruleApplies = ('.$rule.');');
if($ruleApplies) {
$field = $field->$transformation();
}
}
// formatting
$item = $this->item;
$value = $field->Value();
if(array_key_exists($origFieldName, $this->parent->fieldFormatting)) {
$format = str_replace('$value', "__VAL__", $this->parent->fieldFormatting[$origFieldName]);
$format = preg_replace('/\$([A-Za-z0-9-_]+)/','$item->$1', $format);
$format = str_replace('__VAL__', '$value', $format);
eval('$value = "' . $format . '";');
$field->dontEscape = true;
$field->setValue($value);
}
$this->fields[] = $field;
$i++;
}
}
// New record
} else {
$list = $this->parent->FieldList();
$i=0;
foreach($list as $fieldName => $fieldTitle) {
if(strpos($fieldName, ".")) {
$shortFieldName = substr($fieldName, strpos($fieldName, ".")+1, strlen($fieldName));
} else {
$shortFieldName = $fieldName;
}
$combinedFieldName = $this->parent->Name() . "[new][" . $shortFieldName . "][]";
$fieldType = $this->fieldTypes[$fieldName];
if(isset($fieldType->class) && is_subclass_of($fieldType, 'FormField')) {
$field = clone $fieldType; // we can't use the same instance all over, as we change names
$field->Name = $combinedFieldName;
} elseif(strpos($fieldType, '(') === false) {
//echo ("<li>Type: ".$fieldType." fieldName: ". $filedName. " Title: ".$fieldTitle."</li>");
$field = new $fieldType($combinedFieldName,$fieldTitle);
} else {
$field = eval("return new " . $fieldType . ";");
}
$field->addExtraClass('col'.$i);
$this->fields[] = $field;
$i++;
}
}
return new DataObjectSet($this->fields);
}
function Fields() {
return $this->fields;
}
function ExtraData() {
$content = "";
$id = ($this->item->ID) ? $this->item->ID : "new";
if($this->parent->getExtraData()) {
foreach($this->parent->getExtraData() as $fieldName=>$fieldValue) {
$name = $this->parent->Name() . "[" . $id . "][" . $fieldName . "]";
if($this->isAddRow) $name .= '[]';
$field = new HiddenField($name, null, $fieldValue);
$content .= $field->FieldHolder() . "\n";
}
}
return $content;
}
}
?>