number-validations.md

Number validations

• required: can't be undefined (default: false)
• equal: * equal to passed value
• integer: must be an integer (default: false)
• precision: maximum number of decimal places
• positive: must be positive (default: false)
• negative: must be negative (default: false)
• multiple: must be a multiple of the passed value
• min: ** minimum valid value (works like the >= operator)
• greater: ** must be greater than passed value (works like the > operator)
• max: ** maximum valid value (works like the <= operator)
• less: ** must be smaller than passed value (works like the < operator)
• nullable: accepts null (default: false)

const Pool = attributes({
  depth: {
    type: Number,
    positive: true
  },
  width: {
    type: Number,
    min: { attr: 'depth' }
  },
  length: {
    type: Number,
    greater: { attr: 'width' }
  },
  capacity: {
    type: Number,
    nullable: true
  }
})(class Pool {
  getVolume() {
    return this.depth * this.width * this.length;
  }
});