customModel.js

import { validate } from 'validate.js'
import { validateModel } from 'models/validate'
import { INVALID_VALIDATOR } from 'constants/errors'

const customModelValidator = (value, options, key, attributes, globalOptions) => {
  const { validator } = options

  if (validate.isEmpty(value)) return null // Don't validate if there is no value

  if (!validator) return INVALID_VALIDATOR

  const errors = validateModel(value, validator, { ...globalOptions, ...options })
  if (errors !== true) return errors

  return null
}

export default customModelValidator