sminnee / silverstripe-framework

    /**

     * Changes this field to the readonly field.

     */

    public function performReadonlyTransformation()

    {

        $copy = $this->castedCopy('SilverStripe\\Forms\\TreeMultiselectField_Readonly');

        $copy->setKeyField($this->keyField);

        $copy->setLabelField($this->labelField);

        $copy->setSourceObject($this->sourceObject);

        return $copy;

    }

}

    /**

     * Changes this field to the readonly field.

     */

    public function performReadonlyTransformation()

    {

        /** @var TreeDropdownField_Readonly $copy */

        $copy = $this->castedCopy(TreeDropdownField_Readonly::class);

        $copy->setKeyField($this->keyField);

        $copy->setLabelField($this->labelField);

        $copy->setSourceObject($this->sourceObject);

        return $copy;

    }

    /**

     * @param string|FormField $classOrCopy