silverstripe-framework/forms/DatalessField.php

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<?php
/**
* Abstract class for all fields without data.
* Labels, headings and the like should extend from this.
* @package forms
* @subpackage fields-dataless
*/
class DatalessField extends FormField {
/**
* Function that returns whether this field contains data.
* Always returns false.
*/
function hasData() { return false; }
/**
* Returns the field's representation in the form.
* For dataless fields, this defaults to $Field.
*/
function FieldHolder() {
return $this->Field();
}
/**
* Returns the field's representation in a field group.
* For dataless fields, this defaults to $Field.
*/
function SmallFieldHolder() {
return $this->Field();
}
/**
* Returns a readonly version of this field
*/
function performReadonlyTransformation() {
return $this;
}
/**
* As DatalessFields are not initialized with an ID/name,
* we keep the title for a unique reference.
*/
function Name() {
return $this->title;
}
}
?>