redux-form-gen

A pluggable form generator for redux-form.

✅ No dependency on styling frameworks (bootstrap, etc)

✅ Pluggable - Add your own custom field types

✅ Uses a plain JSON object to define the form - can be sent from the server

✅ Supports conditional logic using JSON

Installation

yarn add @isobar-us/redux-form-gen

or

npm install --save @isobar-us/redux-form-gen

Documentation

• API Docs

Examples

🏖 Code Sandboxes 🏖

• Basic Example
• All Fields Example
• Conditional Example
• Wizard Example
• Reactstrap Example (uses customFieldTypes)

Simple Usage

import {reduxForm, Form} from 'redux-form';
import {FormGenerator, injectGenProps} from '@isobar-us/redux-form-gen';

const fields = [
  {
    type: 'text',
    label: 'First Name',
    required: true,
    questionId: 'firstName'
  },
  {
    type: 'text',
    label: 'Last Name',
    required: true,
    questionId: 'lastName'
  }
];

// pass your fields into <FormGenerator />
const MyFields = ({handleSubmit}) => (
  <Form onSubmit={handleSubmit}>
    <FormGenerator fields={fields} />
    <button type='submit'>Submit</button>
  </Form>
);

// wrap reduxForm in injectGenProps to take care of validation and initialValues
const MyForm = injectGenProps(
  reduxForm({
    form: 'exampleForm'
  })(MyFields)
);

// make sure to pass fields into the form wrapped with injectGenProps()
const MyPage = () => (
  ...
  <MyForm fields={fields} />
);

Defining your own field types

import {reduxForm, Field, Form} from 'redux-form';
import {FormGenerator, GenericRequiredLabel, injectGenProps} from '@isobar-us/redux-form-gen';

const SelectField => () => {
  // ... your custom select field implementation
};

// defining your own field type definition.
const selectType = ({field}) => ({
  _genFieldComponent: Field,
  _genLabelComponent: GenericRequiredLabel,
  name: field.questionId,
  component: SelectField,
  options: field.options
});

// mapping the type string (key) to the type definition (value)
const customFieldTypes = {
  select: selectType
};

// using your new field type
const fields = [
  {
    type: 'select', // matches the key in `customFieldTypes`
    questionId: 'test',
    label: 'Who would win in a fight?',
    options: [
      {label: 'Horse-sized duck', value: 'horse-sized_duck'},
      {label: '100 duck-sized horses', value: '100_duck-sized_horses'}
    ]
  }
]

// pass your fields and customFieldTypes into <FormGenerator />
const MyFields = ({handleSubmit}) => (
  <Form onSubmit={handleSubmit}>
    <FormGenerator fields={fields} customFieldTypes={customFieldTypes} />
    <button type='submit'>Submit</button>
  </Form>
);

// wrap reduxForm in injectGenProps to take care of validation and initialValues
const MyForm = injectGenProps(
  reduxForm({
    form: 'myForm'
  })(MyFields)
);

// make sure to pass fields and customFieldTypes into the form wrapped with injectGenProps()
const MyPage = () => (
  ...
  <MyForm fields={fields} customFieldTypes={customFieldTypes} />
);

Default Field Types

GenericProps

• type: string - the type of the field. you can add more type using customFieldTypes prop on the <FormGenerator />.
• label: string - the label for the field
• childFields: [FieldType] - an array of child fields. If the parent field is invisible, childFields will also be invisible. useful for the section and group types.
• conditionalVisible: ConditionalObject - the evaluated ConditionalObject controls whether a field and it's childFields are visible

GenericFieldProps

Extends GenericProps

• questionId: - the name property for a field. supports dot-notation
• required: boolean - mark the field as required
• disabled: boolean - mark the field as disabled (also skips required validation)
• conditionalRequired: ConditionalObject - the evaluated ConditionalObject controls whether a field is required
• conditionalDisabled: ConditionalObject - the evaluated ConditionalObject controls whether a field is disabled (also skips required validation)

Type: text

Extends GenericFieldProps. Renders a native <input type="text" /> component.

Type: textarea

Extends GenericFieldProps. Renders a native <textarea> component.

Type: radio

Extends GenericFieldProps. Renders a native <input type="radio" /> component.

Type: select

Extends GenericFieldProps. Renders a native <select> and <option> component.

• options: [ { label: string, value: string } ] - an array of <option>s to render.

Type: array

Extends GenericFieldProps. Uses ReduxForm FieldArray component, and renders each item, as an arrayItem type.

• item: (FieldType: arrayItem) - the arrayItem type that the array will use to render each item.
• addLabel - the label for the Add button for adding a new item to the array.

Type: arrayItem

Extends GenericProps

• label: string - supports templates for {index} and {indexOverTotal} ex: label: "Item {index}"

Type: group

Extends GenericProps. Renders a extra label for grouping fields.

Type: section

Extends GenericProps. Renders a header for grouping fields.

Custom Field Type Options

Property	Type	Description
_genFieldComponent	Component	This is the redux-form Field, Fields, or FieldArray component that this should use to render
_genComponent	Component	the Component used if not using _genFieldComponent
_genLabelComponent	Component	the Component used to render the field label. defaults to GenericRequiredLabel
_genChildren	array	used to override the default childFields when iterating only (not rendering)
_genDefaultValue	any	used when calculating the initialValues with getDefaultValues() for a reduxForm component
_genIsFilled	func	fn({data, field, lookupTable, customFieldTypes}) => bool
_genIsValid	func	fn({data, field, lookupTable, customFieldTypes}) => bool
_genSectionErrors	func	fn({errors, data, field, lookupTable, customFieldTypes}) => void set in errors
_genTraverseChildren	func	fn({iterator, data, lookupTable}) => something.map((field) => iterator({field, data, lookupTable}))
_genSkipChildren	bool	skip rendering of childFields
_genSkipCache	bool	skip clear/restore functionality from FormGenerator cache
_genHidden	bool	skip rendering of this field and all it's children.
...	...	...
any other props for <Field> component	any	name, names, component etc...

Note: Any props with the _gen prefix are omitted when rendering the _genFieldComponent

Known Bugs

• built in SelectField can only take strings as option values, since they get converted to strings on the <option> tag