Silverstripe删除CMS选项卡中不相关的has_one关系字段

Question

我有一个被调用的DataObject ContentSection,它有2个has_one关系:到页面类型LandingPage和另一个DataObject Person.

class ContentSection extends DataObject {
    protected static $has_one = array(
        'Person'        => 'Person',
        'LandingPage'   => 'LandingPage'
    );
}

LandingPage和Person都定义了与ContentSection的has_many关系.

class LandingPage extends Page {
    protected static $has_many = array(
        'ContentSections'   => 'ContentSection'
    );
}

class Person extends DataObject {
    protected static $has_many = array(
        'ContentSections'   => 'ContentSection'
    );
}

ContentSections可以通过LandingPage和Person编辑,GridFieldConfig_RelationEditor例如:

function getCMSFields() {
    $fields = parent::getCMSFields();
    $config = GridFieldConfig_RelationEditor::create(10);
    $fields->addFieldToTab('Root.Content', new GridField('ContentSections', 'Content Sections', $this->ContentSections(), $config));
    return $fields;
}

我的问题是如何在CMS编辑器选项卡中隐藏/删除不相关的has_one字段？编辑ContentSection时,Person和LandingPage关系下拉字段都会显示,无论是Person还是LandingPage.我只想显示相关的has_one关系字段.我尝试在has_many关系上使用点表示法:

class Person extends DataObject {
    protected static $has_many = array(
        'ContentSections'   => 'ContentSection.Person'
    );
}

我也尝试在类的removeFieldFromTab方法中使用该方法,其中我为ContentSection定义了其他CMS字段:getCMSFieldsContentSection

$fields->removeFieldFromTab('Root.Main', 'Person');

Answer 1

而不是removeFieldFromTab使用该removeByName功能.removeFieldFromTab如果没有'Root.Main'标签,则无效.

我们也删除PersonID,而不是Person.has_one变量已ID附加到变量名称的末尾.

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

    $fields->removeByName('PersonID');
    $fields->removeByName('LandingPageID');

    return $fields;
}

如果您想有选择地隐藏或显示这些字段,您可以if在getCMSFields函数中添加一些语句.

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

    if (!$this->PersonID) {
        $fields->removeByName('PersonID');
    }

    if (!$this->LandingPageID) {
        $fields->removeByName('LandingPageID');
    }

    return $fields;
}