ENHANCEMENT DataObjectSet::groupBy() now supports use of a method name to group objects

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@74996 467b73ca-7a2a-4603-9d3b-597d59a354a9
This commit is contained in:
Sean Harvey 2009-04-23 02:37:44 +00:00
parent 235ce958b8
commit 16293cf1d4

View File

@ -685,15 +685,19 @@ class DataObjectSet extends ViewableData implements IteratorAggregate {
/**
* Returns an array of DataObjectSets. The array is keyed by index.
*
* @param string $index The field name to index the array by.
* @return array
*/
public function groupBy($index){
foreach($this->items as $item ){
if(!isset($result[$item->$index])) {
$result[$item->$index] = new DataObjectSet();
public function groupBy($index) {
$result = array();
foreach($this->items as $item) {
$key = ($item->hasMethod($index)) ? $item->$index() : $item->$index;
if(!isset($result[$key])) {
$result[$key] = new DataObjectSet();
}
$result[$item->$index]->push($item);
$result[$key]->push($item);
}
return $result;
}