有没有办法对GridField进行分组(例如,通过ID)?如果它们没有相同的SortOrder,则以下Query(many_many)会返回一些数据对象两次或更多次。这是一些代码。我希望有人可以提供帮助; - )
private static $many_many = array(
'Mitarbeiter' => 'Mitarbeiter',
);
private static $many_many_extraFields = array(
'Mitarbeiter' => array(
'SortOrder' => "Int"
)
)
// Start Mitarbeiterzuordnung
$MitarbeiterFieldConfig = GridFieldConfig::create()->addComponents(
new GridFieldToolbarHeader(),
//new GridFieldSortableHeader(),
new GridFieldDataColumns(),
new GridFieldDeleteAction('unlinkrelation'),
new GridFieldSortableRows('SortOrder'),
new GridFieldManyRelationHandler(), 'GridFieldPaginator',
new GridFieldPaginator(20)
);
$MitarbeiterField = new GridField("Mitarbeiter", "Mitarbeiter", $this->Mitarbeiter()->sort('SortOrder'), $MitarbeiterFieldConfig);
$fields->addFieldToTab('Root.Mitarbeiter', $MitarbeiterField);
答案 0 :(得分:0)
GridFieldManyRelationHandler.php存在问题,并且private static $many_many_extraFields
作为排序字段。
查询运行时SortOrder不同,因为它使用distinct,具有不同值的查询被视为额外的,这就是具有订单集的那些显示两次的原因。
您需要创建GridFieldManyRelationHandler.php的副本(我称之为GridFieldManyManyRelationHandler.php)并编辑以下函数:
public function getManipulatedData(GridField $gridField, SS_List $list) {
if(!$list instanceof RelationList) {
user_error('GridFieldManyRelationHandler requires the GridField to have a RelationList. Got a ' . get_class($list) . ' instead.', E_USER_WARNING);
}
$state = $this->getState($gridField);
// We don't use setupState() as we need the list
if($state->FirstTime) {
$state->RelationVal = array_values($list->getIdList()) ?: array();
}
if(!$state->ShowingRelation && $this->useToggle) {
return $list;
}
$baseClass = $list->dataClass();
return $baseClass::get();
}
然后从您的代码中调用该新类,即
private static $many_many = array(
'Mitarbeiter' => 'Mitarbeiter',
);
private static $many_many_extraFields = array(
'Mitarbeiter' => array(
'SortOrder' => "Int"
)
)
// Start Mitarbeiterzuordnung
$MitarbeiterFieldConfig = GridFieldConfig::create()->addComponents(
new GridFieldToolbarHeader(),
//new GridFieldSortableHeader(),
new GridFieldDataColumns(),
new GridFieldDeleteAction('unlinkrelation'),
new GridFieldSortableRows('SortOrder'),
new GridFieldManyManyRelationHandler(), 'GridFieldPaginator',
new GridFieldPaginator(20)
);
$MitarbeiterField = new GridField("Mitarbeiter", "Mitarbeiter", $this->Mitarbeiter()->sort('SortOrder'), $MitarbeiterFieldConfig);
$fields->addFieldToTab('Root.Mitarbeiter', $MitarbeiterField);
这可能应该重构,两个类应该分开(一个类处理many_many,另一个类has_many)。