string-validations.md

String validations

• required: can't be undefined (default: false)
• empty: accepts empty string (default: false)
• equal: * equal to passed value
• minLength: can't be shorter than passed value
• maxLength: can't be longer than passed value
• exactLength: length must be exactly the passed value
• regex: matches the passed regex
• alphanumeric: composed only by alphabetical and numeric characters
• lowerCase: all characters must be lower cased
• upperCase: all characters must be upper cased
• email: is a valid email (default: false)
• nullable: accepts null (default: false)
• guid: is a valid guid. You can pass a boolean or the options object accepted by Joi (default: false)

const User = attributes({
  id: {
    type: String,
    guid: true,
  },
  token: {
    type: String,
    guid: {
      version: ['uuidv4'],
    },
  },
  initials: {
    type: String,
    upperCase: true,
    maxLength: 4,
  },
  gender: {
    type: String,
    nullable: true,
  },
  password: String,
  passwordConfirmation: {
    type: String,
    equal: { attr: 'password' },
  },
  greet: {
    type: String,
    required: true,
    equal: ['Mr', 'Ms', 'Mrs', 'Miss', { attr: 'greetDesc' }],
  },
  greetDesc: String,
})(
  class User {
    getFullGreet() {
      return `${this.greet} ${this.initials}`;
    }
  }
);