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<?php
/**
* Description of DatagridPresenter
*
*/
class DatagridPresenter extends ViewableData {
/**
* Template override
*
* @var string $template
*/
protected $template = 'DatagridPresenter';
/**
* Class name for each item/row
*
* @var string $itemClass
*/
protected $itemClass = 'DatagridPresenter_Item';
/**
*
* @var Datagrid
*/
protected $datagrid = null;
/**
*
* @var array
*/
public $fieldCasting = array();
/**
*
* @var array
*/
public $fieldFormatting = array();
/**
*
* @param string $template
*/
function setTemplate($template){
$this->template = $template;
}
/**
*
* @param Datagrid $datagrid
*/
public function setDatagrid(Datagrid $datagrid){
$this->datagrid = $datagrid;
}
/**
*
* @return Datagrid
*/
public function getDatagrid(){
return $this->datagrid;
}
/**
* Return a ArrayList of Datagrid_Item objects, suitable for display in the template.
*
* @return ArrayList
*/
function Items() {
$fieldItems = new ArrayList();
if($items = $this->datagrid->datasource) {
foreach($items as $item) {
if(!$item) {
continue;
}
$fieldItems->push(new $this->itemClass($item, $this));
}
}
return $fieldItems;
}
/**
* Get the headers or column names for this grid
*
* The returning array will have the format of
* array(
* 'FirstName' => 'First name',
* 'Description' => 'A nice description'
* )
*
* @return ArrayList
*/
public function Headers() {
if($this->datagrid->datasource instanceof DataList ) {
return $this->getHeadersFromDatalist();
} else {
if(!$this->datasource) {
return array();
}
$firstItem = $this->datasource->first();
if(!$firstItem) {
return array();
}
return array_combine(array_keys($firstItem),array_keys($firstItem));
}
}
/**
*
* @return ArrayList
*/
protected function getHeadersFromDatalist(){
$fieldHeaders = new ArrayList();
$fieldHeadersSummaryFields = singleton($this->datagrid->datasource->dataClass)->summaryFields();
if (is_array($fieldHeadersSummaryFields)){
foreach ($fieldHeadersSummaryFields as $name=>$title){
$fieldHeaders->push(new ArrayData(array('Name'=>$name, 'Title'=>$title)));
}
}
return $fieldHeaders;
}
/**
*
* @param type $casting
*/
function setFieldCasting($casting) {
$this->fieldCasting = $casting;
}
/**
*
* @param type $formatting
*/
function setFieldFormatting($formatting) {
$this->fieldFormatting = $formatting;
}
/**
*
* @return string - html
*/
function render(){
return $this->renderWith(array($this->template));
}
}
/**
* A single record in a Datagrid.
* @package forms
* @see Datagrid
*/
class DatagridPresenter_Item extends ViewableData {
/**
* @var DataObject The underlying data record,
* usually an element of {@link Datagrid->datasource()}.
*/
protected $item;
/**
* @var Datagrid
*/
protected $parent;
/**
*
* @param type $item
* @param type $parent
*/
public function __construct($item, $parent) {
$this->failover = $this->item = $item;
$this->parent = $parent;
parent::__construct();
}
/**
*
* @return int
*/
public function ID() {
return $this->item->ID;
}
/**
*
* @return type
*/
public function Parent() {
return $this->parent;
}
/**
*
* @param bool $xmlSafe
* @return ArrayList
*/
public function Fields($xmlSafe = true) {
$list = $this->parent->getDatagrid()->FieldList();
foreach($list as $fieldName => $fieldTitle) {
$value = "";
// TODO Delegates that to DataList
// This supports simple FieldName syntax
if(strpos($fieldName,'.') === false) {
$value = ($this->item->XML_val($fieldName) && $xmlSafe) ? $this->item->XML_val($fieldName) : $this->item->RAW_val($fieldName);
// This support the syntax fieldName = Relation.RelatedField
} else {
$fieldNameParts = explode('.', $fieldName) ;
$tmpItem = $this->item;
for($j=0;$j<sizeof($fieldNameParts);$j++) {
$relationMethod = $fieldNameParts[$j];
$idField = $relationMethod . 'ID';
if($j == sizeof($fieldNameParts)-1) {
if($tmpItem) $value = $tmpItem->$relationMethod;
} else {
if($tmpItem) $tmpItem = $tmpItem->$relationMethod();
}
}
}
// casting
if(array_key_exists($fieldName, $this->parent->fieldCasting)) {
$value = $this->parent->getCastedValue($value, $this->parent->fieldCasting[$fieldName]);
} elseif(is_object($value) && method_exists($value, 'Nice')) {
$value = $value->Nice();
}
// formatting
$item = $this->item;
if(array_key_exists($fieldName, $this->parent->fieldFormatting)) {
$format = str_replace('$value', "__VAL__", $this->parent->fieldFormatting[$fieldName]);
$format = preg_replace('/\$([A-Za-z0-9-_]+)/','$item->$1', $format);
$format = str_replace('__VAL__', '$value', $format);
eval('$value = "' . $format . '";');
}
//escape
if($escape = $this->parent->getDatagrid()->fieldEscape){
foreach($escape as $search => $replace){
$value = str_replace($search, $replace, $value);
}
}
$fields[] = new ArrayData(array(
"Name" => $fieldName,
"Title" => $fieldTitle,
"Value" => $value
));
}
return new ArrayList($fields);
}
}
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