angular2-json-schema-form/src/playground/examples/asf-hack-conditional-required.json

Angular 2 JSON Schema Form builder

{
  "schema": {
    "type": "object",
    "properties": {
      "switch": {
        "title": "Spam me, please",
        "type": "boolean"
      },
      "email": {
        "title": "Email",
        "type": "string",
        "pattern": "^\\S+@\\S+$",
        "description": "Email will be used for evil."
      }
    },
    "required": [
      "switch"
    ]
  },
  "form": [
    {
      "type": "help",
      "helpvalue": "<p>Schema Form does not support oneOf (yet), but you can do a workaround and simulate certain scenarios with 'condition' and 'required'  (and/or 'readonly') in the form.</p>"
    },
    "switch",
    {
      "key": "email",
      "condition": "model.switch",
      "required": true
    },
    {
      "key": "email",
      "condition": "!model.switch"
    },
    {
      "type": "submit",
      "style": "btn-info",
      "title": "OK"
    }
  ]
}