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<?php
namespace Icinga\Module\Director\PropertyModifier;
use Icinga\Module\Director\Hook\PropertyModifierHook;
use Icinga\Module\Director\Web\Form\QuickForm;
class PropertyModifierSimpleGroupBy extends PropertyModifierHook
{
private $keptRows = [];
public function getName()
{
return mt('director', 'Group by a column, aggregate others');
}
public function requiresRow()
{
return true;
}
public function transform($value)
{
$row = $this->getRow();
$aggregationColumns = preg_split(
'/\s*,\s*/',
$this->getSetting('aggregation_columns'),
-1,
PREG_SPLIT_NO_EMPTY
);
if (isset($this->keptRows[$value])) {
foreach ($aggregationColumns as $column) {
if (isset($row->$column)) {
$this->keptRows[$value]->{$column} = array_unique(array_merge(
$this->keptRows[$value]->{$column},
[$row->$column]
));
sort($this->keptRows[$value]->{$column});
}
}
$this->rejectRow();
} else {
foreach ($aggregationColumns as $column) {
if (isset($row->$column)) {
$row->$column = [$row->$column];
} else {
$row->$column = [];
}
}
$this->keptRows[$value] = $row;
}
return $value;
}
public static function addSettingsFormFields(QuickForm $form)
{
$form->addElement('text', 'aggregation_columns', [
'label' => $form->translate('Aggregation Columns'),
'description' => $form->translate(
'Comma-separated list of columns that should be aggregated (transformed into an Array).'
. ' For all other columns only the first value will be kept.'
),
'required' => true,
]);
}
}
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