@root-systems/redux-form-validators/src/confirmation.js

Simple validations with redux-form

import React from 'react'
import { FormattedMessage } from 'react-intl'
import { formatMessage, prepare, memoize } from './helpers'

const DEFAULT_CASE_SENSITIVE = true

let confirmation = memoize(function ({
      field,
      fieldLabel,
      caseSensitive,
      message,
      msg,
      'if': ifCond, unless
    }) {
  msg = formatMessage(msg || message)

  caseSensitive = (null != caseSensitive ? caseSensitive : DEFAULT_CASE_SENSITIVE)

  return prepare(ifCond, unless, false, function (value, allValues) {
    let fieldValue = '' + (allValues[field] || '')

    if (caseSensitive ? value !== fieldValue : value.toLowerCase() !== fieldValue.toLowerCase()) {
      return msg || (
        <FormattedMessage id="form.errors.confirmation"
          defaultMessage="doesn't match `{fieldLabel}`"
          values={{ fieldLabel: fieldLabel || field }} />
      )
    }
  })
})

export default confirmation