%YAML 1.2
---
version: 1.1

person:  # Description of a person


  firstname:  # Last name of the person

  lastnames: []  # Last names of the person

  age:
    description: Person's age
    type: integer
    params:
      min_integer: 0
      max_integer: 120

  legal_age:
    description: The person is of legal age
    type: boolean
    default:
      jinja: |-
        {{ _.age is not none and _.age >= 18 }}
    hidden: true

  drive_license:
    description: The person has a driver's license
    default: false
    disabled:
      variable: _.legal_age
      when_not: true

  means_of_transport:
    description: Means of transport used by the person
    choices:
      - human-powered
      - public transport
      - electric-assisted vehicle
      - engine-powered without a license
      - engine-powered
      - others
    validators:
      - jinja: |-
          {% if _.means_of_transport == "engine-powered" %}
            {% if _.drive_license is propertyerror %}
              {{ _.lastnames[0] }} {{ _.firstname }} is not of legal age but declares that he uses an engine-powered
            {% elif not _.drive_license %}
              {{ _.lastnames[0] }} {{ _.firstname }} does not have a license but declares that he uses an engine-powered
            {% endif %}
          {% endif %}
        description: Engine-powered are only permitted for individuals with a driver's license
...