php - 如何在 CMS 中创建必填字段

Question

我尝试在 CMS 中创建必填字段:

class Documents extends DataObject {

    private static $db = array(
        'DocType' => 'Text',
        'DocTitle' => 'Text',
        'DocNumber' => 'Text'
    );

    public function getCMSFields() {
        $fields = parent::getCMSFields();   
        $fields = FieldList::create(TabSet::create('Root'));
        $fields->addFieldsToTab('Root.Main', array(
            DropdownField::create('DocType','Document Type'),             
            DropdownField::create('DocStatus','Document Status'),
            TextField::create('DocNumber','Document Number'),
            ...

            RequiredFields::create(array('DocType','DocTitle','DocNumber'));
        ));

        return $fields;
    }

但在我的 SilverStripe 错误日志中，我得到以下信息:

"Uncaught Exeption: the method 'getname' doesn't exist on RequiredFields or the method is not public".

如何在 SilverStripe CMS 中创建必填字段？

Answer 1

在 CMS 中，我们可以通过声明 getCMSValidator 函数并返回 RequiredFields 来声明必填字段:

public function getCMSValidator()
{
    return RequiredFields::create(
        'DocType',
        'DocTitle',
        'DocNumber'
    );
}