defaultValue
を入力コンポーネントに設定する方法は?
<Field name={`${prize}.rank`} defaultValue={index} component={Input} type='text'/>
上記のように試しましたが、私のフィールドは空です。 fieldArray
(動的フォーム)を作成しようとしています:
{fields.map((prize, index) =>
<div key={index} className="fieldArray-container relative border-bottom" style={{paddingTop: 35}}>
<small className="fieldArray-title marginBottom20">Prize {index + 1}
<button
type="button"
title="Remove prize"
className="btn btn-link absolute-link right"
onClick={() => fields.remove(index)}>Delete</button>
</small>
<div className="row">
<div className="col-xs-12 col-sm-6">
<Field name={`${prize}.rank`} defaultValue={index} component={Input} type='text'/>
<Field name={`${prize}.prizeId`} defaultValue={index} component={Input} type='text'/>
<Field
name={`${prize}.name`}
type="text"
component={Input}
label='Prize Name'/>
</div>
<div className="col-xs-12 col-sm-6">
<Field
name={`${prize}.url`}
type="text"
component={Input}
label="Prize URL"/>
</div>
<div className="col-xs-12">
<Field
name={`${prize}.description`}
type="text"
component={Input}
label="Prize Description" />
</div>
</div>
</div>
)}
Reduxフォームでは、次のような値のオブジェクトを使用してinitialize()
を呼び出すことができます。
class MyForm extends Component {
componentWillMount () {
this.props.initialize({ name: 'your name' });
}
//if your data can be updated
componentWillReceiveProps (nextProps) {
if (/* nextProps changed in a way to reset default values */) {
this.props.destroy();
this.props.initialize({…});
}
}
render () {
return (
<form>
<Field name="name" component="…" />
</form>
);
}
}
export default reduxForm({})(MyForm);
この方法では、デフォルト値を何度も何度も更新できますが、最初に必要な場合は次のことができます。
export default reduxForm({values: {…}})(MyForm);
このjsfiddleには例があります
https://jsfiddle.net/bmv437/75rh036o/
const renderMembers = ({fields}) => (
<div>
<h2>Members</h2>
<button onClick={() => fields.Push({})}>add</button><br />
{fields.map((field, idx) => (
<div className='member' key={idx}>
First Name
<Field name={`${field}.firstName`} component='input' type='text' /><br />
Last Name
<Field name={`${field}.lastName`} component='input' type='text' /><br />
<button onClick={() => fields.remove(idx)}>remove</button><br />
</div>
))}
</div>
)
const Form = () => (
<FieldArray name='members' component={renderMembers} />
)
const MyForm = reduxForm({
form: 'foo',
initialValues: {
members: [
{
firstName: "myFirstName"
}
]
}
})(Form)
これはHoCを使用した私の実装です
import { Component } from 'react'
import {
change,
} from 'redux-form'
class ReduxFormInputContainer extends Component{
componentDidMount(){
const {
initialValue,
meta,
} = this.props
if(initialValue === undefined || meta.initial !== undefined || meta.dirty) return
const {
meta: { form, dispatch },
input: { name },
} = this.props
dispatch(change(form, name, initialValue))
}
render(){
const {
initialValue,
component: Compo,
...fieldProps
} = this.props
return <Compo {...fieldProps} />
}
}
function reduxFormInputContainer(component){
return function(props){
return <ReduxFormInputContainer {...props} component={component} />
}
}
export default reduxFormInputContainer
次に、例:
import reduxFormInputContainer from 'app/lib/reduxFormInputContainer'
InputNumericWidget = reduxFormInputContainer(InputNumericWidget)
class InputNumeric extends Component{
render(){
const props = this.props
return (
<Field component={InputNumericWidget} {...props} />
)
}
}