validayion yml

AppBundle\Entity\User:
    constraints:
        - Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity: email
    properties:
        firstname:
            - NotBlank: ~
            - Type: string
        lastname:
            - NotBlank: ~
            - Type: string
        email:
            - NotBlank: ~
            - Email: ~
        plainPassword:
            - NotBlank: { groups: [New, FullUpdate] }
            - Type: string
            - Length:
                min: 6
                max: 50
        phone:
            - Type: string
            - Length:
                min: 10
                max: 10
        birthday:
            - type: datetime