Redux Form - Immutable JS Example

README.md

Redux Form - Immutable JS Example

The original example: Redux Form - Immutable JS Example

App.js

import React from 'react';
import ImmutableForm from './ImmutableForm';
import { createStore } from 'redux';
import { Provider } from 'react-redux';
import reducer from './reducer';
import "bootstrap/dist/css/bootstrap.css";

const store = createStore(reducer);

class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = {debug: ''};
  }

  handleSubmit(values) {
    const self = this;
    self.setState({debug: JSON.stringify(values)});
  }

  render() {
    const onSubmit = this.handleSubmit.bind(this);
    return (
      <Provider store={store}>
        <div>
          <ImmutableForm onSubmit={onSubmit} />
          <div>
            <pre>{this.state.debug}</pre>
          </div>
        </div>
      </Provider>
    );
  }
}

export default App;

cra-script.sh

#!/bin/bash

NAME=redux-form-immutable-js

echo -n "This script runs create-react-app $NAME. Proceed? (Y/N) "
read YN
if [ x$YN != xY ]
then
  echo "Bye."
  exit
fi

# Delete this line only if you are sure what is done from this line on.
exit

create-react-app $NAME
cd $NAME
cp -v ../package.json .
cd src
rm -f App.* logo.svg
cp -v ../../*.js .
cd ..
yarn install

echo 'To launch the dev server, run `yarn run start`.'

ImmutableForm.js

import React from 'react'
import { Field, reduxForm } from 'redux-form/immutable' // <--- immutable import
import validate from './validate'
import warn from './warn'
import {
  Form, FormGroup,
  Row, Col,
  Button
} from 'react-bootstrap'

const renderField = ({
  input,
  label,
  type,
  meta: { touched, error, warning }
}) => (
  <FormGroup>
    <Row>
      <Col sm={2}>
        <label>{label}</label>
      </Col>
      <Col sm={8}>
        <input {...input} type={type} placeholder={label} />
        {
          touched &&
          ((error && <span>{error}</span>) ||
            (warning && <span>{warning}</span>))
        }
      </Col>
    </Row>
  </FormGroup>
)

const ImmutableForm = props => {
  const { handleSubmit, pristine, reset, submitting } = props
  return (
    <Form onSubmit={handleSubmit}>
      <Field
        name="username"
        type="text"
        component={renderField}
        label="Username"
      />
      <Field name="email" type="email" component={renderField} label="Email" />
      <Field name="age" type="number" component={renderField} label="Age" />
      <div>
        <Button type="submit" bsStyle="primary"
          disabled={submitting}>
          Submit
        </Button>
        <Button type="button" bsStyle="default"
          disabled={pristine || submitting} onClick={reset}>
          Clear Values
        </Button>
      </div>
    </Form>
  )
}

export default reduxForm({
  form: 'immutableExample', // a unique identifier for this form
  validate,
  warn
})(ImmutableForm)

normalizePhone.js

const normalizePhone = value => {
  if (!value) {
    return value
  }

  const onlyNums = value.replace(/[^\d]/g, '')
  if (onlyNums.length <= 3) {
    return onlyNums
  }
  if (onlyNums.length <= 7) {
    return `${onlyNums.slice(0, 3)}-${onlyNums.slice(3)}`
  }
  return `${onlyNums.slice(0, 3)}-${onlyNums.slice(3, 6)}-${onlyNums.slice(
    6,
    10
  )}`
}

export default normalizePhone

package.json

{
  "name": "redux-form-selecting-form-values",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "bootstrap": "^3.3.7",
    "immutable": "^3.8.2",
    "react": "^16.0.0",
    "react-bootstrap": "^0.31.5",
    "react-dom": "^16.0.0",
    "react-redux": "^5.0.6",
    "redux": "^3.7.2",
    "redux-form": "^7.1.2",
    "redux-immutablejs": "^0.0.8"
  },
  "devDependencies": {
    "react-scripts": "1.0.14"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject"
  }
}

reducer.js

import { combineReducers } from 'redux';
import { reducer as formReducer } from 'redux-form/immutable';

const rootReducer = combineReducers({
  form: formReducer
});

export default rootReducer;

submit.js

import { SubmissionError } from 'redux-form'

const sleep = ms => new Promise(resolve => setTimeout(resolve, ms))

function submit(values) {
  return sleep(1000).then(() => {
    // simulate server latency
    if (!['john', 'paul', 'george', 'ringo'].includes(values.username)) {
      throw new SubmissionError({
        username: 'User does not exist',
        _error: 'Login failed!'
      })
    } else if (values.password !== 'redux-form') {
      throw new SubmissionError({
        password: 'Wrong password',
        _error: 'Login failed!'
      })
    } else {
      return values;
    }
  })
}

export default submit

validate.js

const validate = values => {
  // IMPORTANT: values is an Immutable.Map here!
  const errors = {}
  if (!values.get('username')) {
    errors.username = 'Required'
  } else if (values.get('username').length > 15) {
    errors.username = 'Must be 15 characters or less'
  }
  if (!values.get('email')) {
    errors.email = 'Required'
  } else if (
    !/^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i.test(values.get('email'))
  ) {
    errors.email = 'Invalid email address'
  }
  if (!values.get('age')) {
    errors.age = 'Required'
  } else if (isNaN(Number(values.get('age')))) {
    errors.age = 'Must be a number'
  } else if (Number(values.get('age')) < 18) {
    errors.age = 'Sorry, you must be at least 18 years old'
  }
  return errors
}

export default validate

warn.js

const warn = values => {
  // IMPORTANT: values is an Immutable.Map here!
  const errors = {}
  if (values.get('username') && /[^a-zA-Z0-9 ]/i.test(values.get('username'))) {
    errors.username = 'Only alphanumeric characters'
  }
  if (values.get('email') && /.+@aol\.com/.test(values.get('email'))) {
    errors.email = 'Really? You still use AOL for your email?'
  }
  if (values.get('age') && values.get('age') > 65) {
    errors.age = 'You might be too old for this'
  }
  return errors
}

export default warn