Javascript Redux表单:如何在向导表单上设置初始值?
我有一个字段Javascript Redux表单:如何在向导表单上设置初始值?,javascript,reactjs,redux,redux-form,Javascript,Reactjs,Redux,Redux Form,我有一个字段位置,这是API的必填字段,因此不能空白提交。因此,我尝试将字段的0设置为initialValue。Location字段位于表单的第二步,在WizardFormSecondPage上设置initialValues,将从状态中删除所有以前输入的数据。如何设置位置字段的初始值,并将所有数据保存在第一步中 位置组件: export class GetLocation extends Component{ constructor(){ super(); this.getMyL
位置
,这是API的必填字段,因此不能空白提交。因此,我尝试将字段的0
设置为initialValue
。Location
字段位于表单的第二步,在WizardFormSecondPage
上设置initialValues
,将从状态中删除所有以前输入的数据。如何设置位置
字段的初始值
,并将所有数据保存在第一步中
位置组件:
export class GetLocation extends Component{
constructor(){
super();
this.getMyLocation = this.getMyLocation.bind(this);
}
getMyLocation = () => {
const location = window.navigator && window.navigator.geolocation;
if (location) {
location.getCurrentPosition((position) => {
this.props.onLocationChanged(position.coords);
},
(positionError) => {
console.log(positionError.message);
this.props.onLocationChanged("0")
},{maximumAge:0, timeout: 60000})
} else {
console.log();
this.props.onLocationChanged("0")
}
};
render(){
return(
<div>
<p>Your location is </p>
<Field
name="latitude"
component="input"
className="form-control" initialValues={0.0}
/>
<Field
name="longitude"
component="input"
className="form-control"
/><br/>
<button type="button" className="btn btn-success" onClick={this.getMyLocation.bind(this)}>Get Geolocation</button>
</div>
);
}
导出类GetLocation扩展组件{
构造函数(){
超级();
this.getMyLocation=this.getMyLocation.bind(this);
}
getMyLocation=()=>{
const location=window.navigator&&window.navigator.geology;
如果(位置){
位置。getCurrentPosition((位置)=>{
此.props.onLocationChanged(position.coords);
},
(位置错误)=>{
控制台日志(位置错误消息);
此.props.onLocationChanged(“0”)
},{maximumAge:0,超时:60000})
}否则{
console.log();
此.props.onLocationChanged(“0”)
}
};
render(){
返回(
你的位置是
获取地理位置
);
}
}
向导表单第二页
let WizardFormSecondPage = props => {
const { handleSubmit, previousPage} = props;
const onLocationChanged = (loc) => {
props.change('location.latitude', loc.latitude);
props.change("location.longitude", loc.longitude);
};
return (
<form onSubmit={handleSubmit} className="form-horizontal">
<div className="panel">
<div className="form-group">
<label className="control-label col-sm-2" htmlFor="address">
Location
</label>
<div className="row">
<div className="col-sm-12">
<p className="label-lead">Own Address</p>
<FormSection name="location" component={Address}>
<Address />
</FormSection>
<p className="label-lead">Location Coordinates</p>
<FormSection name="location" component={GetLocation}>
<GetLocation onLocationChanged={onLocationChanged} />
</FormSection>
</div>
</div>
</div>
</div>
<div className="clearfix">
<button type="button" className="previous pull-left btn btn-default" onClick={previousPage}>
Previous
</button>
<button type="submit" className="next pull-right btn btn-primary">
Next
</button>
</div>
</div>
</form>
);
};
export default reduxForm({
form: "wizard", // <------ same form name
destroyOnUnmount: false, // <------ preserve form data
forceUnregisterOnUnmount: true, // <------ unregister fields on unmount
validate
})(WizardFormSecondPage);
让WizardFormSecondPage=props=>{
const{handleSubmit,previousPage}=props;
const onLocationChanged=(loc)=>{
道具更改('位置.纬度',位置.纬度');
道具。改变(“位置。经度”,位置。经度);
};
返回(
位置
自己的地址
位置坐标
以前的
下一个
);
};
导出默认reduxForm({
表格:“向导”,//结果证明,我的方法是错误的。我可以将初始值设置为整个WizardForm
,它不会再次初始化。因此,我没有尝试设置初始化WizardFormSecondPage
,而是必须在WizardForm.js
上设置值。这是我的WizardForm.js
:
class WizardForm extends Component {
constructor(props) {
super(props);
this.nextPage = this.nextPage.bind(this);
this.previousPage = this.previousPage.bind(this);
this.state = {
page: 1,
};
}
nextPage() {
this.setState({ page: this.state.page + 1 });
}
previousPage() {
this.setState({ page: this.state.page - 1 });
}
onSubmit(values, dispatch) {
return dispatch(saveData(values));
// Call the action creator which is responsible for saving data here.
}
render() {
const { onSubmit } = this.props;
const { page } = this.state;
return (
<div>
{page === 1 && <WizardFormFirstPage onSubmit={this.nextPage} />}
{page === 2 &&
<WizardFormSecondPage
previousPage={this.previousPage}
onSubmit={this.nextPage}
/>}
{page === 3 &&
<WizardFormPreview
previousPage={this.previousPage}
onSubmit={this.onSubmit}
/>}
</div>
);
}
}
WizardForm.propTypes = {
onSubmit: PropTypes.func.isRequired,
};
// this part sets the initial values. connect if you need store.
WizardForm = reduxForm ({
form: 'wizard',
initialValues: {
location: {
latitude: "0.0",
longitude: "0.0"
}
}
})(WizardForm)
export default WizardForm;
类向导表单扩展组件{
建造师(道具){
超级(道具);
this.nextPage=this.nextPage.bind(this);
this.previousPage=this.previousPage.bind(this);
此.state={
页码:1,
};
}
下一页(){
this.setState({page:this.state.page+1});
}
上一页(){
this.setState({page:this.state.page-1});
}
onSubmit(值、分派){
返回分派(保存数据(值));
//调用负责在此处保存数据的操作创建者。
}
render(){
const{onSubmit}=this.props;
const{page}=this.state;
返回(
{page==1&&}
{page==2&&
}
{page==3&&
}
);
}
}
WizardForm.propTypes={
onSubmit:PropTypes.func.isRequired,
};
//此部件设置初始值。如果需要存储,请连接。
WizardForm=reduxForm({
表单:“向导”,
初始值:{
地点:{
纬度:“0.0”,
经度:“0.0”
}
}
})(表格)
导出默认向导表单;
添加了完整的WizardFormSecondPage
code(为了简洁起见,省略了一些字段)。