I would like to do sync validation, but I have no ideas how to obtain the field's object
validate.js
const validate = (values) => {
const errors = {};
if (!values.firstName) {
errors.firstName = 'Firstname is required';
} else if (values.firstName.length < 5 || values.firstName.length > 10) {
errors.firstName = 'Firstname must be between 5 - 10';
}
return errors;
}
export default validate;
SimpleReduxForm.js
import React, { Component } from 'react'
import { connect } from 'react-redux'
import { reduxForm, Field } from 'redux-form'
import validate from './validate'
const fields = [ 'firstName', 'lastName', 'age' ]
@reduxForm({
form: 'simpleReduxForm',
fields,
validate
})
export default class SimpleReduxForm extends Component {
render() {
const { handleSubmit, invalid, pristine, submitting } = this.props
const { fields } = this.props
console.log(fields)
return (
<div>
<form onSubmit={ handleSubmit(this.handleFormSubmit) }>
<Field name="firstName" component="input" type="text" />
<Field name="lastName" component="input" type="text" />
<Field name="age" component="input" type="number" />
<input type="submit" value="Submit" disabled={ pristine || invalid || submitting }/>
</form>
</div>
)
}
}
The output of console.log(fields)
from the source code above as below
It's just an array not object
I have seen sample coding from the documentation as below but I have no ideas how to get mine to work
const { fields: { firstName, lastName } } = this.props
...
{ firstName.touched && firstName.error && <div>{ firstName.error }</div> }
Please advise, thanks
There is a good example of how to do this on the redux-forms website. The gist is that you should render a component for your Field
which will then have access to that input's data. For example, here's one of mine using some twitter-bootstrap
error styling.
const renderField = ({ input, label, type, meta: { touched, invalid, error } }) => (
<div class={`form-group ${touched && invalid ? 'has-error' : ''}`}>
<label>{label}</label>
<input {...input} placeholder={label} type={type} className="form-control" />
<div class="text-danger">
{touched ? error: ''}
</div>
</div>
);
Note that you just need to pull out touched
, invalid
, etc instead of object.property.touched
, etc.
I use this from my Field
declaration like so:
<Field name="name" type="text" component={renderField} label="Name" />