Question

我想使用GridField来查看和创建新的子页面。父是DocumentHolder，子是Document。两者都扩展了SiteTree。当我点击＆＃34;添加文档＆＃34; （由网格生成的按钮），填写字段并确认表单，忽略父页面并在root中创建页面。我使用DataObject时效果很好。代码如下所示：

class DocumentHolder extends SiteTree
{

    private static $allowed_children = array(
        'Document'
    );

    private static $default_child = "Document";


    public function getCMSFields()
    {
        $fields = parent::getCMSFields();

        $gridField = new GridField('Documents', 'Documents', SiteTree::get('Document')->filter('ParentID', $this->ID), GridFieldConfig_RecordEditor::create());

        $fields->addFieldToTab("Root.Uploads", $gridField);

        return $fields;
    }

}



class Document extends SiteTree
{

    private static $db = array(
    );
    private static $has_one = array(
    );
}

感谢您的帮助。

Answer 1

由于SiteTree已经设置了与其子页面的关系，您也可以使用它！由于allowed_children将只是文档，请尝试这样做：

$gridField = new GridField('Documents', 'Documents', $this->Children(), GridFieldConfig_RecordEditor::create());

Answer 2

我之前在我的holderpage模块上遇到了这个问题。您需要默认设置ParentID。这是两个策略;

您可以在子类上使用populateDefaults。 E.g。

class Document extends SiteTree
{

    private static $default_parent = 'DocumentHolder';
    private static $can_be_root = false;

    public function populateDefaults(){
        parent::populateDefaults();
        $this->ParentID = DataObject::get_one(self::$default_parent)->ID;
    }

    ...

或者您可以使用自定义GridFieldDetailForm实施或updateItemEditForm回调操作网格字段中的记录。

<?php

class MyGridFieldDetailForm_ItemRequest extends GridFieldDetailForm_ItemRequest
{

    public function ItemEditForm()
    {
        $form = parent::ItemEditForm();

        if (! $this->record->exists() && $this->record->is_a('SiteTree')) {
            $parent_page = $this->getController()->currentPage();
            if ($parent_page && $parent_page->exists()) {

                $this->record->ParentID = $parent_page->ID;

                // update URLSegment @TODO perhaps more efficiently?
                $field = $this->record->getCMSFields()->dataFieldByName('URLSegment');
                $form->Fields()->replaceField('URLSegment', $field);
            }
        }

        return $form;
    }
}

这更复杂，虽然它允许我创建一个轻松的模块/插件（https://github.com/briceburg/silverstripe-holderpage）

使用GridField添加新页面 - 在根文件夹中创建子项

2 个答案: