Silverstripe 3.2:如何动态地添加和更新前端形式的Dataobjects？

Question

示例:我有会员(可以登录和更新他们的数据),他们有一个或多个资格.所以我有一个DataObject'Members'和一个带有has_one/has_many关系的DataObject'Qualification'.

像这样的东西:

class Qualification extends DataObject {

    private static $db = array (
        'Title' => 'Text',
        'From' => 'Date',
        'Till' => 'Date'
    );

    private static $has_one = array (
        'Member' => 'Member',
    );

...

class Member extends DataObject {

   ...

   private static $has_many = array (
      'Qualifications' => 'Qualification',
  );

...

现在我想在前端构建一个表单,允许成员一次添加许多资格,并以相同的形式更新现有资格.

它可能看起来像这样

Qualifikation One

标题:xxx(textfield)来自:xxx(datefield)直到:xxx(datefield)

Qualifikation二

标题:xxx(textfield)来自:xxx(datefield)直到:xxx(datefield)

+添加资格

最好的方法是什么？

我可以使用jQuery动态添加字段,如下所示:http://jsfiddle.net/nzYAW/

但是我如何处理更新并将它们添加到数据库中.我尝试的一切都非常复杂和混乱,所以我想也许其他人有一个我现在看不到的想法.我们将不胜感激!

Answer 1

我用3dgoo的解决方案解决了我的问题。我在前端表单中使用 GridField 以及GridField 扩展模块和组件GridFieldEditableColumns以及GridFieldAddNewInlineButton. 这是一个例子：

public function MyForm() {

     $config = GridFieldConfig::create();
     $config->addComponent(new GridFieldButtonRow('before'));
     $config->addComponent(new GridFieldEditableColumns());
     $config->addComponent(new GridFieldAddNewInlineButton());
     $gridField = GridField::create('Qualifications', 'Qualifications', Qualification::get()->filter(array('MemberID' => Member::currentUserID()))),$config);

     $fields = new FieldList(

          .... here goes some other Fields like Textfields ...

          TextField::create('MyTextField'),
          CheckboxField::create('MyCheckboxField'),
          $gridField,
     );


     $actions = new FieldList(
          FormAction::create('myAction','save'),
          FormAction::create('myOtherAction','save and next')
     );

     $form = new Form($this, __FUNCTION__, $fields, $actions);
     $form->loadDataFrom(Member::get()->byID(Member::currentUserID()));
     return $form;

}

public function myAction($data, $form) {
      $member = Member::get()->byId(Member::currentUserID());
      $form->saveInto($member);
      $member->write();      
}

我还必须将 canView、canEdit、canCreate 和 canDelete 函数添加到 Qualification DataObject 以允许编辑和显示它。