Contentful Migration of button to CTA.

button.js

// 1) Runs first, Initial creation of 'button'
const button = migration
    .createContentType('button')
    .name('Button')
    .description(
      'Global button type including things such as site links and call now buttons'
    )
    .displayField('identifier')
  button
    .createField('identifier')
    .name('Identifier')
    .type('Symbol')
    .validations([{ unique: true }])
    .required(true)
  button
    .createField('type')
    .name('Type')
    .type('Symbol')
    .validations([{ in: ['Default', 'Phone Number'] }])
    .required(true)
  button
    .createField('text')
    .name('Text')
    .type('Symbol')
    .required(true)
  button
    .createField('destination')
    .name('Destination')
    .type('Symbol')
    .validations([
      {
        regexp: {
          pattern: '^(w+:{0,1}w*@)?(S+)(:[0-9]+)?(/|/([w#!:.?+=&%@!-/]))?$',
        },
      },
    ])

buttonEntriesToCTA.js

// 3) Runs last
const uuid = require('uuid/v4')

module.exports = migration => {
  migration.transformEntriesToType({
    sourceContentType: 'button',
    targetContentType: 'cta',
    from: ['identifier', 'type', 'text', 'destination'],
    shouldPublish: true,
    updateReferences: true,
    removeOldEntries: true,
    identityKey: (() => uuid()),
    transformEntryForLocale: (fromFields, currentLocale) => ({
      identifier: fromFields.identifier[currentLocale],
      type: fromFields.type[currentLocale] === 'Phone Number' ? 'Phone' : 'Link',
      buttonText: fromFields.text[currentLocale],
      destinationURL: fromFields.destination && fromFields.destination[currentLocale],
    })
  })
}

createCTAType.js

// 2) Runs second
module.exports = migration => {
  const cta = migration
    .createContentType('cta')
    .name('CTA')
    .description('A call to action')
    .displayField('identifier')
  cta
    .createField('identifier')
    .name('Identifier')
    .type('Symbol')
    .validations([{ unique: true }])
    .required(true)
  cta
    .createField('type')
    .name('Type')
    .type('Symbol')
    .validations([{ in: ['Link', 'Phone', 'Zip', 'Newsletter'] }])
    .required(true)
  cta
    .createField('buttonText')
    .name('Button Text')
    .type('Symbol')
    .required(true)
  cta
    .createField('labelText')
    .name('Label Text')
    .type('Symbol')
  cta
    .createField('placeholderText')
    .name('Placeholder Text')
    .type('Symbol')
  cta
    .createField('destinationURL')
    .name('Destination URL')
    .type('Symbol')
    .validations([
      {
        message: 'Must be a valid URL format',
        regexp: {
          pattern: `((http(s)?:\\/\\/.)?(www\\.)?[-a-zA-Z0-9@:%._\\+~#=]{2,256}\\.[a-z]{2,6}\\b([-a-zA-Z0-9@:%_\\+.~#?&//=]*))|(^\\/[-a-zA-Z0-9@:%._\\+~#=]{0,256})`,
        },
      },
    ])
}