TYPO3.Flow

It is possible to declare additional validation rules in the doc comment of an action methods:

    /**
     * Creates a new participant + account.
     *
     * @param \F3\Conference\Domain\Model\Participant $newParticipant
     * @param string $password
     * @return void
     * @validate $password StringLength(minimum = 5)
     */
    public function createAction(\F3\Conference\Domain\Model\Participant $newParticipant, $password) {
    ...

However, it's not possible to declare a validation rule which refers to a sub object of one of the method arguments. In the above example it would be nice to declare that the first name of the person name of the new participant must not be empty (= is required). This could be achieved by supporting the object accessor syntax known from Fluid templates:

    /**
     * Creates a new participant + account.
     *
     * @param \F3\Conference\Domain\Model\Participant $newParticipant
     * @param string $password
     * @return void
     * @validate $newParticipant.name.firstName NotEmpty
     * @validate $password StringLength(minimum = 5)
     */
    public function createAction(\F3\Conference\Domain\Model\Participant $newParticipant, $password) {
    ...

In its first implementation, this new syntax will only apply to @validate annotations in action methods.