Form transform

[nhunzaker]

Just bumped into this on our hackathon project. This PR makes it much easier to format data before submitting it:

class SchedulesNew extends React.Component {

  transform (params) {
    params.start = new Date(params.start).toISOString()
    params.end = new Date(params.start).toISOString()

    return params
  }

  render () {
    return (
        <Form intent={actions.create} onError={this.onFailure} transform={this.transform}>
          <p><label>Name <input name="name" /></label></p>
          <p><label>Start <input name="start" type="datetime-local" /></label></p>
          <p><label>End <input name="end" type="datetime-local" /></label></p>

          <footer>
            <input type="submit" />
          </footer>
        </Form>
    )
  }

}

export default SchedulesNew

[rysospicy]

👍

[coveralls]

Coverage remained the same at 100.0% when pulling 69e3eda on form-transform into d4da2cc on master.