除了Christiaan Westerbeek的回答。我只是用 Christian 的一些提示重新创建了一个 SimpleForm 组件。一开始，我尝试使用所需的服务器端验证功能来扩展 SimpleForm，但存在一些问题（例如未将上下文绑定到其handleSubmitWithRedirect方法），因此我只是创建了我的 CustomForm 以在我需要的每个地方使用它。
import React, { Children, Component } from 'react';
import PropTypes from 'prop-types';
import { reduxForm, SubmissionError } from 'redux-form';
import { connect } from 'react-redux';
import compose from 'recompose/compose';
import { withStyles } from '@material-ui/core/styles';
import classnames from 'classnames';
import { getDefaultValues, translate } from 'ra-core';
import FormInput from 'ra-ui-materialui/lib/form/FormInput';
import Toolbar from 'ra-ui-materialui/lib/form/Toolbar';
import {CREATE, UPDATE} from 'react-admin';
import { showNotification as showNotificationAction } from 'react-admin';
import { push as pushAction } from 'react-router-redux';
import dataProvider from "../../providers/dataProvider";
const styles = theme => ({
form: {
[theme.breakpoints.up('sm')]: {
padding: '0 1em 1em 1em',
},
[theme.breakpoints.down('xs')]: {
padding: '0 1em 5em 1em',
},
},
});
const sanitizeRestProps = ({
anyTouched,
array,
asyncValidate,
asyncValidating,
autofill,
blur,
change,
clearAsyncError,
clearFields,
clearSubmit,
clearSubmitErrors,
destroy,
dirty,
dispatch,
form,
handleSubmit,
initialize,
initialized,
initialValues,
pristine,
pure,
redirect,
reset,
resetSection,
save,
submit,
submitFailed,
submitSucceeded,
submitting,
touch,
translate,
triggerSubmit,
untouch,
valid,
validate,
...props
}) => props;
/*
* Zend validation adapted catch(e) method.
* Formatted as
* e = {
* field_name: { errorType: 'messageText' }
* }
*/
const submit = (data, resource) => {
let actionType = data.id ? UPDATE : CREATE;
return dataProvider(actionType, resource, {data: {...data}}).catch(e => {
let errorObject = {};
for (let fieldName in e) {
let fieldErrors = e[fieldName];
errorObject[fieldName] = Object.values(fieldErrors).map(value => `${value}\n`);
}
throw new SubmissionError(errorObject);
});
};
export class CustomForm extends Component {
handleSubmitWithRedirect(redirect = this.props.redirect) {
return this.props.handleSubmit(data => {
return submit(data, this.props.resource).then((result) => {
let path;
switch (redirect) {
case 'create':
path = `/${this.props.resource}/create`;
break;
case 'edit':
path = `/${this.props.resource}/${result.data.id}`;
break;
case 'show':
path = `/${this.props.resource}/${result.data.id}/show`;
break;
default:
path = `/${this.props.resource}`;
}
this.props.dispatch(this.props.showNotification(`${this.props.resource} saved`));
return this.props.dispatch(this.props.push(path));
});
});
}
render() {
const {
basePath,
children,
classes = {},
className,
invalid,
pristine,
push,
record,
resource,
showNotification,
submitOnEnter,
toolbar,
version,
...rest
} = this.props;
return (
<form
// onSubmit={this.props.handleSubmit(submit)}
className={classnames('simple-form', className)}
{...sanitizeRestProps(rest)}
>
<div className={classes.form} key={version}>
{Children.map(children, input => {
return (
<FormInput
basePath={basePath}
input={input}
record={record}
resource={resource}
/>
);
})}
</div>
{toolbar &&
React.cloneElement(toolbar, {
handleSubmitWithRedirect: this.handleSubmitWithRedirect.bind(this),
invalid,
pristine,
submitOnEnter,
})}
</form>
);
}
}
CustomForm.propTypes = {
basePath: PropTypes.string,
children: PropTypes.node,
classes: PropTypes.object,
className: PropTypes.string,
defaultValue: PropTypes.oneOfType([PropTypes.object, PropTypes.func]),
handleSubmit: PropTypes.func, // passed by redux-form
invalid: PropTypes.bool,
pristine: PropTypes.bool,
push: PropTypes.func,
record: PropTypes.object,
resource: PropTypes.string,
redirect: PropTypes.oneOfType([PropTypes.string, PropTypes.bool]),
save: PropTypes.func, // the handler defined in the parent, which triggers the REST submission
showNotification: PropTypes.func,
submitOnEnter: PropTypes.bool,
toolbar: PropTypes.element,
validate: PropTypes.func,
version: PropTypes.number,
};
CustomForm.defaultProps = {
submitOnEnter: true,
toolbar: <Toolbar />,
};
const enhance = compose(
connect((state, props) => ({
initialValues: getDefaultValues(state, props),
push: pushAction,
showNotification: showNotificationAction,
})),
translate, // Must be before reduxForm so that it can be used in validation
reduxForm({
form: 'record-form',
destroyOnUnmount: false,
enableReinitialize: true,
}),
withStyles(styles)
);
export default enhance(CustomForm);
为了更好地理解我的catch回调：在我的数据提供者中，我做了这样的事情
...
if (response.status !== 200) {
return Promise.reject(response);
}
return response.json().then((json => {
if (json.state === 0) {
return Promise.reject(json.errors);
}
switch(type) {
...
}
...
}
...