Sails JS:使用嵌入式JSON属性验证模型

Question

如何使用Sails JS中的object类型的属性验证模型？

我知道具有简单值(例如字符串)的属性是可以接受的,但是这对嵌套JSON有何作用？

如下:

{
    name: 'John',
    location: {
        x: 23,
        y: 15,
        z: 50
    }
}

它会是这样的形式:

{
    name: {
        type: 'string',
        required: true,
    },
    location: {
        x: {
            type: 'number',
            required: true
        },
        y: {
            type: 'number',
            required: true
        },
        z: {
            type: 'number',
            required: true
        }
    }
}

Answer 1

Waterline(Sails ORM)不直接支持嵌套模式.您可以使用自定义验证规则来验证属性:

module.exports = {

  types: {
    location: function(val) {
      // Make sure that x, y and z are present and are numbers.
      // This won't allow numeric strings, but you can adjust to fit your needs.
      return (_.isNumber(val.x) && _.isNumber(val.y) && _.isNumber(val.z));
    }
  },

  attributes: {

    location: {
      type: 'json',
      required: true, // If you want the whole attribute to be required
      location: true  // Validate that the attribute has the schema you want
    }

    ...more attributes...

  }

};